Abrégé

The present application relates to a spherical sensor integrating ultrasound and ultra high frequency for use in a converter transformer, and a sensing system. An optical fiber sensing and processing system is connected to a spherical optical fiber ultrasound sensing unit, and an ultra high frequency sensing unit is connected to a data acquisition card; the optical fiber sensing and processing system is connected to a wave filter via the data acquisition card, and the wave filter is connected to a computer; the spherical optical fiber ultrasound sensing unit is in sealed connection with the ultra high frequency sensing unit via a connection rod, and the side of the ultra high frequency sensing unit furthest from the connection rod is in sealed connection with a sensing assembly. The spherical optical fiber ultrasound sensing unit detects ultrasonic signals from all directions inside an oil tank of a converter transformer to be tested.

Classes IPC  ?

• G01R 31/12 - Test de la rigidité diélectrique ou de la tension disruptive

Abrégé

Provided are an imaging method and system for residual stress of a basin insulator and a method for preparing a test block. The imaging method includes cutting and preparing a standard industrial sample of a basin insulator and testing the acoustoelastic coefficient of the standard industrial sample; then obtaining the residual stress data of the basin insulator and obtaining the spatial point sound velocity distribution of the basin insulator; finally, obtaining a stress distribution cloud map of the basin insulator by calculation of the attribute value and the coordinate data of a to-be-measured location, and performing reliability verification based on the residual stress data.

Classes IPC  ?

• G01N 3/12 - Test de pression
• G01N 1/44 - Traitement d'échantillons mettant en œuvre un rayonnement, p. ex. de la chaleur
• G01N 29/06 - Visualisation de l'intérieur, p. ex. microscopie acoustique
• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• G01N 33/44 - RésinesMatières plastiquesCaoutchoucCuir

Abrégé

Provided in the present application are a passive-impact-type mechanical deicing device and method for an overhead line. The mechanical deicing device comprises an outer cover, an inner cover, an elastic energy storage mechanism, a bumping control mechanism and a bumping mechanism, wherein the bumping control mechanism comprises a traction block, a jaw and a jaw limiting cylinder; and the elastic energy storage mechanism comprises a first elastic member and a second elastic member, the first elastic member being pressed when the inner cover slides downwards, and the second elastic member being pressed when the jaw slides downwards, such that the load generated by icing of a conductor can be accumulated. In the device and method, the elastic energy storage mechanism is used to accumulate the load generated by icing of a conductor, and when the load exceeds a set threshold, the bumping control mechanism automatically triggers the bumping mechanism to move to generate an instantaneous impact load to remove the ice coated on the conductor. In this way, there is no need for a power source, and bumping and reset can be automatically triggered according to the change in icing without manual intervention, thereby ensuring the deicing effect, preventing large-amplitude vibration of the conductor during ice breaking, and greatly improving the deicing reliability and safety. The device is suitable for long-term operation in harsh field environment.

Classes IPC  ?

• H02G 7/16 - Dispositifs pour retirer la neige ou la glace des lignes ou des câbles

Abrégé

The present invention relates to an optical fiber laying device, an underground pipeline positioning method and system, a computer device, and a storage medium. The optical fiber laying device comprises: an optical fiber storage box, an optical fiber positioning box, and an optical fiber sensor, wherein the optical fiber sensor has one end fixed in the optical fiber storage box, and the other end fixed on the optical fiber positioning box. The optical fiber laying device has two working states: when the optical fiber laying device is used for detection, the optical fiber storage box and the optical fiber positioning box are respectively located at a starting point and an end point of an underground pipeline to be detected, and the optical fiber sensor is used for receiving excitation signals emitted by excitation sources pre-arranged in said underground pipeline; and when the optical fiber laying device is not in use, the optical fiber sensor is arranged in the optical fiber storage box, and the optical fiber storage box is connected to the optical fiber positioning box. The optical fiber sensor in the optical fiber laying device of the present invention can detect excitation signals in underground pipelines having different sizes, different types and different detection requirements, and by incorporating the underground pipeline positioning method, positioning is carried out, such that the limitation of existing positioning methods is effectively solved, and the positioning accuracy is further improved.

Classes IPC  ?

• G02B 6/50 - Installation souterraine ou sous l'eauInstallation à travers des tubes, des conduits ou des canalisations
• G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p. ex. des moyens optiques

Abrégé

A method for aggregation regulation optimization of an electric vehicle load by considering a comprehensive response coefficient is disclosed. The method includes the following steps: Step 1, collecting electric vehicle charging information; Step 2, based on the electric vehicle charging information collected in Step 1, calculating aggregation regulation response indexes for user participation, and determining a weight of each aggregation regulation response index; Step 3, based on the calculation result of each aggregation regulation response index for user participation obtained in Step 2, calculating a comprehensive response coefficient of an electric vehicle; and Step 4, performing the aggregation regulation optimization of the electric vehicle load by using minimum load power deviation determined by a dispatching scheme and an actually considered comprehensive response coefficient as a target and using a load rate, a peak-valley difference and a load fluctuation rate after dispatching as constraints.

Classes IPC  ?

• B60L 53/62 - Surveillance et commande des stations de charge en réponse à des paramètres de charge, p. ex. courant, tension ou charge électrique
• B60L 53/65 - Surveillance et commande des stations de charge impliquant l'identification des véhicules ou de leurs types de batteries
• B60L 53/66 - Transfert de données entre les stations de charge et le véhicule

Abrégé

Disclosed in the present invention are an application post-downloading method and apparatus, a system-on-chip, a terminal, and a storage medium. The method comprises: a terminal compiling a source program of an application to be downloaded, so as to obtain a loadable file, and performing post-compilation on the loadable file, so as to obtain file header information, wherein the file header information comprises first running resource information and first storage space information of the loadable file in the terminal; on the basis of the first storage space information, a system-on-chip dynamically allocating the storage space of the system-on-chip, so as to obtain second storage space information; on the basis of the second storage space information, downloading the loadable file to the system-on-chip, so as to form an executable file; on the basis of the first running resource information, dynamically allocating running resources of the system-on-chip, so as to obtain second running resource information; and on the basis of the second storage space information and the second running resource information, running the executable file in the system-on-chip. In this way, the storage space of a system-on-chip can be saved on, and flexible application management can also be realized, thereby improving the usage experience of a user.

Classes IPC  ?

• G06F 9/445 - Chargement ou démarrage de programme

Abrégé

A power transmission line photonics-electronics converged long-distance monitoring device (10) and method. The device (10) comprises: a fiber grating demodulation module (101), used for transmitting a laser signal to a fiber grating sensor, receiving a first optical signal returned by the fiber grating sensor, demodulating the first optical signal, and outputting the demodulated first optical signal to an edge computing and signal return module (104); a convergence module (102), used for receiving sensing data of monitoring devices other than the fiber grating sensor on a power transmission line and converging the sensing data, and outputting the converged sensing data to an electro-optical conversion module (103); the electro-optical conversion module (103), used for receiving the converged sensing data and converting the converged sensing data into a second optical signal, and outputting the second optical signal to the edge computing and signal backhaul module (104); and the edge computing and signal return module (104), used for computing and encoding the demodulated first optical signal and the second optical signal, and returning the obtained encoded signals to a monitoring master station.

Classes IPC  ?

• G01R 31/58 - Test de lignes, de câbles ou de conducteurs
• G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique

Abrégé

A determination method and apparatus for the minimum startup capacity of a thermal power unit based on voltage stabilization, an electronic device, a storage medium, and a computer program product. The method comprises: acquiring the load level and the output level of a power system; if a difference value between the output level and the load level is greater than a preset capacity, determining that the power system is a sending-end power grid, and calculating the minimum startup capacity of a thermal power unit of the sending-end power grid considering the voltage stability constraint; and if the output level is less than the load level, determining that the power system is a receiving-end power grid, and calculating the minimum startup capacity of a thermal power unit of the receiving-end power grid considering the voltage stability constraint. By means of the present method and apparatus, the calculation result is more accurate and reliable. System output arrangement and system thermal power unit planning based on the present method can ensure the system voltage stability and avoid new energy disordered development.

Classes IPC  ?

• G06Q 50/06 - Fourniture d’énergie ou d’eau
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

Disclosed in the present application are a self-energy-taking hybrid direct-current circuit breaker and an application method therefor. In the self-energy-taking hybrid direct-current circuit breaker, a breaking branch is connected to a through-current branch in parallel, a first end of a grounding branch is connected to the breaking branch, and a second end of the grounding branch is grounded. When a direct-current system operates stably, the through-current branch conducts a steady-state running current of the direct-current system, and when the direct-current system breaks down, a self-energy-taking capacitor in the breaking branch assists a power electronic device in achieving the breaking of a fault current.

Classes IPC  ?

• H02H 3/087 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge pour des systèmes à courant continu
• H03K 17/56 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs

Abrégé

The present invention relates to the field of power automation. Disclosed are a power grid regulation and control model training method and system, a computer device, and a storage medium. The method comprises: acquiring training data of a power grid regulation and control model, and grouping the training data to obtain a plurality of training data groups; training a plurality of preset learning bodies in parallel by means of the plurality of training data groups on the basis of a one-to-one correspondence between the training data groups and the learning bodies to obtain a plurality of execution bodies, wherein when the learning bodies are trained by means of the training data groups, the training data groups are divided into a plurality of training data units, a training effect of each training data unit is acquired to obtain a shared training data unit, and the shared training data unit is shared with other training data groups than the training data group to which the shared training data unit belongs; and finally, combining the plurality of execution bodies to obtain a power grid regulation and control model. By means of parallel training and parallel prediction, quality is improved on the basis of quantity, and shared learning of high-quality sample data is achieved, thereby effectively improving a training effect, and being capable of effectively reducing the training time of the power grid regulation and control model under a big data condition.

Classes IPC  ?

• G06F 18/214 - Génération de motifs d'entraînementProcédés de Bootstrapping, p. ex. ”bagging” ou ”boosting”

Abrégé

The embodiments of the present disclosure provide a voltage stability analysis method based on multi-swing characteristics of a voltage disturbance curve, comprising: a main server obtaining a voltage disturbance curve of at least one node, and analyzing each voltage disturbance curve on the basis of multi-swing characteristics to determine analysis time and the number of curve wavelet package decomposition processing layers corresponding to each voltage disturbance curve; the main server establishing an analysis task corresponding to each node and issuing the analysis task to at least one sub-server; for any sub-server, on the basis of the analysis time and the number of curve wavelet package decomposition processing layers, performing wavelet package analysis on the voltage disturbance curve to obtain a wavelet decomposition coefficient of each layer corresponding to the voltage disturbance curve; for said sub-server, determining the characteristic value of each layer on the basis of the wavelet decomposition coefficient of each layer corresponding to the voltage disturbance curve; and for said sub-server, determining a voltage stability analysis result of the node on the basis of the feature value of each layer corresponding to the voltage disturbance curve and the feature threshold of each layer.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• G06F 17/11 - Opérations mathématiques complexes pour la résolution d'équations
• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau

Abrégé

The present invention provides an alternating current/direct current multi-air-gap magnetoresistive current sensor and a current measurement method. The alternating current/direct current multi-air-gap magnetoresistive current sensor comprises: a magnetic-to-electric conversion unit used for acquiring a magnetic field signal of a target current-carrying wire to which a current to be measured is introduced, converting the magnetic field signal into an electric signal and then outputting the electric signal to a signal processing unit, wherein the magnetic-to-electric conversion unit uses a multi-air-gap band-based closed-loop iron core type structure; the signal processing unit used for amplifying the electric signal and then outputting the electric signal to a feedback compensation unit; and the feedback compensation unit used for adjusting a feedback current on the basis of the amplified voltage signal to enable a novel magnetoresistive element to always work at zero magnetic flux, measuring the value of the feedback current, on the basis of the value of the feedback current, obtaining the value of the current to be measured, and outputting the value of the current to be measured. According to the alternating current/direct current multi-air-gap magnetoresistive current sensor and the current measurement method provided by the embodiments of the present invention, the measurement performance of the current sensor is improved and the problem of the difficulty in achieving both high accuracy and a wide frequency domain of alternating current/direct current measurement is solved.

Classes IPC  ?

• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
• G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall

Abrégé

A suspension field mill, and a method for measuring a space electric field. The suspension field mill comprises: a suspension electric field differential induction module (1), a signal processing module (2), a suspension electric field isolation module (3) and an upper computer, wherein the suspension electric field differential induction module (1) is provided with a first induction probe (12) and a second induction probe (13); the first induction probe (12) and the second induction probe (13) are both provided with several electrode pairs; the suspension electric field differential sensing module (1) is further provided with a first driving mechanism (11) and a second driving mechanism (14); the first driving mechanism (11) drives the first induction probe (12) to rotate in a space electric field to generate a first induced current; the second driving mechanism (14) drives the second induction probe (13) to rotate in the space electric field to generate a second induced current; and the signal processing module (2) converts two induction current signals into two direct-current voltage signals, and determines a measurement value of the space electric field according to a difference value between the two direct-current voltage signals. In the present suspension field mill, a first induction probe (12) and a second induction probe (13) having a plurality of pairs of electrodes are provided, thereby greatly improving the frequency of an output signal of the field mill.

Classes IPC  ?

• G01R 29/12 - Mesure du champ électrostatique

Abrégé

A method and apparatus for determining the safety inertia of a power grid system, and a computer device. The method comprises: determining a first safety inertia for ensuring safe operation of a power grid system when a frequency change rate after disturbance occurs in the power grid system exceeds a first threshold (S302); determining a second safety inertia for ensuring the safe operation of the power grid system when the frequency after the disturbance occurs in the power grid system is less than a second threshold (S304); and determining a target safety inertia according to the first safety inertia and the second safety inertia, wherein the target safety inertia is a safety inertia lower limit value for ensuring the safe operation of the power grid system (S306).

Classes IPC  ?

• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux

Abrégé

A vertical thyristor switch for a controllable surge arrester includes an insulating sleeve and a vertical cylindrical switch core body encapsulated inside the insulating sleeve. The switch core body includes thyristor valve sections, a reactor, driving units, a voltage equalizing assembly section, a structural member and a connecting member; and after being connected to the driving units on one side of the thyristor valve sections, the thyristor valve sections are arranged, together with the voltage equalizing assembly section, in a space of a lower section of the structural member, an upper section of the structural member is provided with the reactor, and components inside the switch core body are electrically connected through the connecting member.

Classes IPC  ?

• H02H 9/04 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de tension

Abrégé

Provided in the present application are a method and apparatus for determining the voltage support strength of a new-energy power system in real time, and a device, a storage medium and a computer program product. The method comprises: collecting a real-time bus operating voltage and a collection line current of a monitoring point of a new-energy power system; calculating a system Thevenin equivalent potential of the monitoring point according to the real-time bus operating voltage and the collection line current; calculating a short-circuit ratio and a critical short-circuit ratio of the monitoring point according to a nominal voltage, the system Thevenin equivalent potential and the real-time bus operating voltage of the monitoring point; calculating a short-circuit ratio safety margin of the monitoring point according to the short-circuit ratio and the critical short-circuit ratio of the monitoring point; and determining a strength classification result of the voltage support strength of the new-energy power system according to the short-circuit ratio safety margin of the monitoring point and a set voltage support strength classification criterion. The method greatly decreases electrical parameters involved in the calculation of a short-circuit ratio, improves the efficiency of an algorithm, and provides technical support for strength classification of a voltage support strength.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/12 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau

Abrégé

Disclosed in the present invention are a system frequency stability control method and system taking into consideration a new-energy frequency modulation energy constraint. The method comprises: calculating a lowest-frequency-point arrival time of a system under active disturbance; determining whether the lowest-frequency-point arrival time meets a frequency stability energy balance criterion, and acquiring a determination result; when the lowest-frequency-point arrival time does not meet the frequency stability energy balance criterion, determining available frequency modulation energy of each new-energy station; and in the previous time period of the lowest-frequency-point arrival time, sequentially adding the available frequency modulation energy of the new-energy stations to a frequency modulation sequence in ascending order of the magnitude of the available frequency modulation energy until a frequency modulation stability requirement is met, so as to complete system frequency stability control. In the present invention, from the perspective of energy, frequency stability is equivalent to the problem of whether disturbance energy and frequency modulation energy can be balanced, and the contribution of new-energy frequency modulation to the frequency is then equivalent to energy square blocks, such that the frequency stability is guaranteed by means of superimposed discrimination of the energy square blocks, and the requirement for new-energy frequency modulation energy is minimized.

Classes IPC  ?

• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux

Abrégé

Provided are a metering abnormality analysis method and apparatus, a storage medium, and a computer device. The metering abnormality analysis method includes acquiring preliminary analysis data analyzed by a source-end system and determining at least one data filtering rule based on the preliminary analysis data (101); filtering the monitoring data of the source-end system based on the data filtering rule to obtain target metering abnormality data (102); comparing and analyzing the target metering abnormality data with preconfigured abnormal case data and determining at least one target case data from the abnormal case data (103); and performing multidimensional cluster analysis on the target metering abnormality data to obtain the aggregation level of the target metering abnormality data in multiple data dimensions and analyzing the cause of metering abnormality based on the target case data and the aggregation level (104).

Classes IPC  ?

• G06Q 30/018 - Certification d’entreprises ou de produits
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

An iron core-annular array multi-ring magnetosensitive current sensor and a current measurement method, the method comprising: using a first loop structure (101) to acquire a feedback current signal generated according to a first magnetic field signal generated by a primary side current; using a second loop structure (102) to measure a second magnetic field signal generated by the current of a wire in a coil; and using a digital processing unit (103) to calculate, according to the feedback current signal and the second magnetic field signal, the feature quantity that characterizes the current of the wire, and determining the current on the wire according to the feature quantity that characterizes the current of the wire.

Classes IPC  ?

• G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall

Abrégé

A measurement anomaly analysis method and apparatus, a storage medium, and a computer device. The measurement anomaly analysis method comprises: acquiring first-order analysis data analyzed by a source-end system and, on the basis of the first-order analysis data, determining at least one data filtering rule (101); on the basis of the data filtering rule, performing a filtering operation on monitoring data of the source-end system to obtain target measurement anomaly data (102); performing contrastive analysis on the target measurement anomaly data and pre-configured anomaly case data to determine at least one piece of target case data from among the anomaly case data (103); and performing multi-dimensional clustering analysis on the target measurement anomaly data so as to obtain the degrees of aggregation of the target measurement anomaly data in a plurality of data dimensions and, on the basis of the target case data and the degrees of aggregation, analyzing a measurement anomaly cause (104).

Classes IPC  ?

• G06F 18/25 - Techniques de fusion
• G06F 18/2321 - Techniques non hiérarchiques en utilisant les statistiques ou l'optimisation des fonctions, p. ex. modélisation des fonctions de densité de probabilité
• G06F 18/10 - PrétraitementNettoyage de données
• G06F 18/28 - Détermination de motifs de référence représentatifs, p. ex. en faisant la moyenne ou en déformantGénération de dictionnaires
• G06F 18/241 - Techniques de classification relatives au modèle de classification, p. ex. approches paramétriques ou non paramétriques
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

Provided are a frequency modulation method, device and system based on a new energy support machine and an energy storage device, and a new energy field station. The method includes: acquiring a system frequency offset value; determining a frequency modulation scheme for the new energy support machine and/or the energy storage device according to the system frequency offset value; generating a frequency modulation instruction for the new energy support machine and/or the energy storage device according to the frequency modulation scheme, so that the new energy support machine and/or the energy storage device execute a corresponding frequency modulation instruction and modulate the system frequency. The method has high regularity, flexibility in rule adjustment and good real-time performance. When the system frequency of a power grid fluctuates, a new energy support machine with higher durability is selected to support the power grid. The electrochemical energy storage device with poorer durability is selected to support the power grid only when the frequency fluctuation of the system is excessive, thereby reducing the number of times the energy storage device is used, realizing the safe operation of the energy storage device, and improving the use safety of the energy storage device.

Classes IPC  ?

• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries

Abrégé

A power transmission tower climbing device (100) and a climbing working robot (500), the power transmission tower climbing device comprising: a movement assembly (1), comprising a rotation arm mechanism (11) having a plurality of rotational degrees of freedom, two ends of the rotation arm mechanism each being provided with a clamping jaw mechanism (12) adapted to clamp a power transmission tower, the rotation arm mechanism being adapted to drive the clamping jaw mechanisms to rotate in the horizontal direction and the vertical direction for climbing and walking, and the rotation arm mechanism being provided with an installation interface adapted to assembly of a working mechanism (501); and a control system (2) in communication connection with the movement assembly, the control system being adapted to control the movement assembly to perform a climbing action and cross an obstacle. The tower climbing device can adapt to complex structure environments on power transmission towers, is adapted to perform aerial climbing and corresponding working operations in place of human, and can improve working efficiency and reduce potential safety hazards.

Classes IPC  ?

• B62D 57/024 - Véhicules caractérisés par des moyens de propulsion ou de prise avec le sol autres que les roues ou les chenilles, seuls ou en complément aux roues ou aux chenilles avec moyens de propulsion en prise avec le sol, p. ex. par jambes mécaniques spécialement adaptés pour se déplacer sur des surfaces inclinées ou verticales
• B25J 9/06 - Manipulateurs à commande programmée caractérisés par des bras à articulations multiples
• B25J 9/08 - Manipulateurs à commande programmée caractérisés par des éléments de construction modulaires
• H02G 1/02 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour lignes ou câbles aériens
• E04H 12/08 - Structures faites en matériaux spécifiés en métal

Abrégé

The invention belongs to the technical field of defense of new energy centralized control station networks, and particularly relates to a dynamic defense system and method of a new energy centralized control station network based on dynamic IP. By monitoring and statistics of the abnormal traffic, the present invention can determine the occurrence frequency and the occurrence interval of the abnormal traffic, further analyze and determine the defense state of a new energy centralized control station based on this, and execute the corresponding dynamic optimization solution according to different defense states, so that the IP address and the firewall of the new energy centralized control station can be dynamically adjusted to ensure the security performance of the new energy centralized control station, reduce the risk of external intrusion, effectively resist malicious network reconnaissance such as scanning attacks and ensure the stable operation of a new energy power generation system.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité

Abrégé

Provided in the embodiments of the present disclosure are a new energy power station grid-connection adaptability analysis method and system. The new energy power station grid-connection adaptability analysis method comprises: a master dispatch station distributing computation tasks by means of an edge gateway; new energy substations receiving the computation tasks, and then asynchronously executing the computation tasks according to operation conditions; after the computation tasks are completed, each new energy substation compressing and encrypting a computation result and section information by means of the edge gateway, and returning same to the master dispatch station; and the master dispatch station executing grid-connection adaptability analysis according to the returned result. In the embodiments of the present disclosure, an existing centralized computation mode is expanded, and full use is made of computation resources at a new energy power station by means of introducing techniques related to edge computing, thereby improving the degree of fusion of multi-source data; moreover, network computing, data storage and advanced application are combined, such that various types of losses which are brought about by data transmission can be effectively reduced, thereby achieving a certain level of engineering application value.

Classes IPC  ?

• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

Embodiments of the present invention relate to a network delay in-band telemetry method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring whole network topology information, establishing a whole network topology view, and establishing a mathematical model for a whole network delay measurement problem; simplifying the mathematical model, and estimating a minimum vertex cover set of the whole network topology view; constructing a detection path set that meets a preset condition, and deploying a probe device set; mounting a probe host on each device in the probe device set, and sending a probe packet along a detection path taking the probe device as a starting point in the detection path set; controlling all network forwarding devices to add a plurality of information fields into the probe packet in the process of sending and/or forwarding the probe packet; extracting the plurality of information fields in the probe packet, and calculating link delay information on a probe packet path; and updating whole network link delay information on the basis of the link delay information of each probe device. Therefore, the real-time performance and accuracy of network delay measurement can be enhanced.

Classes IPC  ?

• H04L 43/0852 - Retards

Abrégé

A method and apparatus for optimally configuring a capacity of a high-proportion new energy system, a device, and a medium, which belong to the field of new energy system optimization and are used for solving the problems of insufficient flexibility of the high-proportion new energy system during the heating period and difficult consumption of renewable energy. The method includes: constructing a high-proportion new energy system structure; establishing a concentrating solar power (CSP) unit model and a combined heat and power (CHP) unit model based on the proposed structure; establishing a high-proportion new energy system collaborative optimization model based on the proposed unit models; acquiring relevant data of various units and renewable resource data; and obtaining a capacity configuration and operation optimization scheme of various units in the high-proportion new energy system according to the established model, thereby improving the renewable energy consumption of the system.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu

Abrégé

Disclosed in the present disclosure are a direct-current converter station protection system and a control method therefor. The system comprises: a first analog quantity acquisition module used for acquiring analog quantity data in a direct-current converter station; a second analog quantity acquisition module used for acquiring analog quantity data in the direct-current converter station; a first protection device used for outputting a first protection action signal; a second protection device used for outputting a second protection action signal; a first protection exit action module used for outputting a protection action according to the first protection action signal; and a second protection exit action module used for outputting a protection action according to the second protection action signal. According to embodiments of the present disclosure, because both the first analog quantity acquisition module and the second analog quantity acquisition device are provided, when the data acquired by one of the analog quantity acquisition modules is wrong, misoperation of the direct-current converter station protection system is avoided, thereby improving the reliability of the direct-current converter station protection system.

Classes IPC  ?

• H02H 7/12 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques
• H02H 7/122 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour onduleurs, c.-à-d. convertisseurs de courant continu en courant alternatif
• H02H 7/125 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour redresseurs
• H02H 1/00 - Détails de circuits de protection de sécurité

Abrégé

An operation control method suitable for a fire extinguishing system of an extra-high voltage converter station is provided. The method includes: after an upper computer control system receives a sound-light alarm signal, an alarm position signal, and a switch position dividing signal, starting a spray range prediction analysis subsystem for a fixed fire monitor; determining, by the spray range prediction analysis subsystem for the fixed fire monitor based on an external wind direction and an external wind speed, whether a range of a fire monitor effectively covers an entire area of a converter transformer; and if yes, automatically presetting a first fire monitor to which a first compressed air foam generation subsystem belongs and a second fire monitor to which a second compressed air foam generation subsystem belongs; or if no, replacing a fire monitor with a mobile fire-fighting robot to extinguish a fire.

Classes IPC  ?

• A62C 37/44 - Commande des installations de lutte contre l'incendie le signal de déclenchement étant émis par un détecteur distinct de la tuyère le détecteur seul étant dans la zone de danger
• A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p. ex. chemins de câbles
• A62C 5/02 - Fabrication de substances extinctrices immédiatement avant l'emploi de mousse
• A62C 31/12 - Buses spécialement conçues pour la lutte contre l'incendie pour délivrer de la mousse ou de la mousse pulvérisée

Abrégé

The present invention relates to the technical field of electrical detection, and provides a high-voltage cable defect detection method, a detection system, an electronic device, and a storage medium. According to the defect detection method, properties of a wavelength change in a spectral signal and precipitation of a characteristic gas caused by a temperature rise of a water-blocking buffer layer in a high-voltage cable due to an ablation defect are utilized. The spectral signal is detected so as to determine the presence of a defect in a first target paragraph, then a gas of the first target paragraph is sampled and analyzed, and a degree of the ablation defect is determined on the basis of compositions and content amplitude of a gas signal. A position where the ablation defect appears is located and detected by using a non-electrical characteristic quantity, so that the influence of electromagnetic interference on a detection instrument and device can be avoided, an operator does not need to perform imaging detection on the high-voltage cable along an entire path, and the field adaptability and accuracy of the detection of an ablation defect of the water-blocking buffer layer in the high-voltage cable can be effectively improved.

Classes IPC  ?

• G01N 21/25 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes

Abrégé

A method and system for measuring broadband impedance of a renewable energy power generation device. A voltage disturbance is injected into the renewable energy power generation device by using a disturbance injection device, and three-phase voltage and three-phase current of each of preset measurement points are acquired. Relevant variables before the renewable energy power generation device is decoupled from a measurement device and impedance of a power grid, are calculated according to the three-phase voltage and the three-phase current of each of the preset measurement points. Impedance of the renewable energy power generation device after being decoupled from the measurement device and the impedance of the power grid, is calculated.

Classes IPC  ?

• G01R 27/16 - Mesure de l'impédance d'un élément ou d'un réseau dans lequel passe un courant provenant d'une autre source, p. ex. câble, ligne de transport de l'énergie

Abrégé

Disclosed are a passivation fire-extinguishing explosion-suppression system and method for a lithium battery energy storage system. The passivation fire-extinguishing explosion-suppression system includes: a fire-detection sensing device configured to locate a fire location and send a fire signal, a fire-extinguishing and anti-reignition explosion-suppression device, and a controller configured to control the turn-on or turn-off of the fire-extinguishing and anti-reignition explosion-suppression device, where the fire-extinguishing and anti-reignition explosion-suppression device is configured to quickly extinguish an open flame and prevent a battery from reignition and explosion and includes a storage apparatus configured to store a fire-extinguishing and anti-reignition explosion-suppression medium; and the fire-extinguishing and anti-reignition explosion-suppression medium is a combination of 90% to 99.8% of a lithium passivation gas and 0.2% to 10% of a halohydrocarbon gas, and the lithium passivation gas is one or a combination of two selected from nitrogen and carbon dioxide.

Classes IPC  ?

• A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p. ex. chemins de câbles
• A62C 3/00 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers
• A62C 35/68 - Détails, p. ex. de conduites ou de systèmes de soupapes

Abrégé

A biomimetic tower climbing robot and a tower climbing method thereof are provided. The robot mainly includes a main control body module and clamping and moving mechanism modules; two ends of the main control body module are connected to one clamping and moving mechanism module through an elastic universal joint respectively, two clamping and moving mechanism modules can alternately lock and unlock an anti-fall track of an iron tower, and the main control body module alternately pushes the clamping and moving mechanism module at its upper end upwards and pulls the clamping and moving mechanism module at its lower end upwards to achieve climbing of the robot along the anti-fall track.

Classes IPC  ?

• B62D 57/024 - Véhicules caractérisés par des moyens de propulsion ou de prise avec le sol autres que les roues ou les chenilles, seuls ou en complément aux roues ou aux chenilles avec moyens de propulsion en prise avec le sol, p. ex. par jambes mécaniques spécialement adaptés pour se déplacer sur des surfaces inclinées ou verticales
• B62D 57/028 - Véhicules caractérisés par des moyens de propulsion ou de prise avec le sol autres que les roues ou les chenilles, seuls ou en complément aux roues ou aux chenilles avec moyens de propulsion en prise avec le sol, p. ex. par jambes mécaniques ayant des roues et des jambes mécaniques
• B62D 57/036 - Véhicules caractérisés par des moyens de propulsion ou de prise avec le sol autres que les roues ou les chenilles, seuls ou en complément aux roues ou aux chenilles avec moyens de propulsion en prise avec le sol, p. ex. par jambes mécaniques du type à vis, p. ex. vis d'Archimède

Abrégé

A method for estimating a voltage support strength of a renewable energy grid-connected power system. A first short-circuit ratio index of a renewable energy grid-connected power system is determined based on a short-circuit capacity provided for a grid connection point by an alternating-current system, An equivalent grid connection capacity of renewable energy at the grid connection point is determined. A second short-circuit ratio index of the renewable energy grid-connected power system is determined based on a voltage variation at a position where the renewable energy is connected to the grid connection point. A critical short-circuit ratio of the renewable energy grid-connected power system determined based on a parameter of the alternating-current system and an equivalent maximum transmission power. A voltage support strength provided by the renewable energy grid-connected power system at the grid connection point is determined based on the first and second short-circuit ratio indexes and the critical short-circuit ratio.

Classes IPC  ?

• G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
• G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre

Abrégé

A space-time correlation-based multi-source heterogeneous alarm information fusion method and system, a computer device, a computer readable storage medium and a computer program product, belonging to the technical field of data fusion. The method comprises: reading multi-source heterogeneous network log data, and extracting alarm information in the network log data; preprocessing the extracted alarm information to obtain multi-source target alarm information; and determining credibility of the multi-source target alarm information on the basis of space-time correlation, and fusing the multi-source target alarm information on the basis of the credibility.

Classes IPC  ?

• G06F 11/32 - Surveillance du fonctionnement avec indication visuelle du fonctionnement de la machine

Produits et services

Petroleum jelly for industrial purposes; oil for precision instruments; grease for arms [weapons]; gas for lighting; oil-gas; coal; belting wax; industrial wax; christmas tree candles; dust laying compositions. Agricultural machines; saw benches [parts of machines]; papermaking machines; type-setting machines [printing]; machines for the textile industry; dyeing machines; spin dryers [not heated]; food preparation machines, electromechanical; apparatus for drawing up beer under pressure; cigarette machines for industrial purposes; leather-working machines; pedal drives for sewing machines; bicycle assembling machines; potters' wheels; engraving machines; wrapping machines; crushers and grinders, electric, for household purposes; washing machines [laundry]; embossing machines; glass-working machines; electromechanical machines for chemical industry; haulage apparatus [mining]; converters for steelworks; drilling rigs, floating or non-floating; mixing machines (construction); lifts, other than ski-lifts; turbocompressors; foundry machines; feeding apparatus for engine boilers; fuel conversion apparatus for internal combustion engines; hydraulic engines and motors; aprons [parts of machines]; presses [machines for industrial purposes]; filters for cleaning cooling air, for engines; blowing machines or fans for the compression, sucking and carrying of grain; aerating pumps for aquaria; road sweeping machines, self-propelled. Computers; computer software, recorded; chronographs [time recording apparatus]; mechanisms for coin-operated apparatus; electronic tags for goods; punched card machines for offices; balances [steelyards]; compasses (measuring instruments); flashing lights [luminous signals]; electro-dynamic apparatus for the remote control of signals; juke boxes for computers; stands for photographic apparatus; automatic indicators of low pressure in vehicle tires; furniture especially made for laboratories; air analysis apparatus; apparatus and instruments for astronomy; telescopes; materials for electricity mains [wires, cables]; distribution consoles [electricity]; electrical conductors; transformers [electricity]; lighting ballasts; mechanisms for counter-operated apparatus; electrolysis apparatus for laboratory use; apparatus and installations for the production of X-rays, not for medical purposes; life buoys; alarms; spectacle frames; battery chargers; slides [photography]; decorative magnets. Lighting apparatus and installations; kitchen ranges [ovens]; cooling installations and machines; drying apparatus and installations; fireplaces (including industrial furnaces and boilers, excluding locomotive and steam engine boilers); taps; hot air bath fittings (excluding toilet utensils); disinfectant dispensers for toilets; radiators, electric; gas lighters; installations for processing nuclear fuel and nuclear moderating material. Providing insurance information; instalment loans; securities and public debt brokerage; art appraisal; real estate appraisal; brokerage; surety services; charitable fund raising; fiduciary; pawnbrokerage. Building construction supervision; factory construction; upholstery repair; heating equipment installation and repair; rebuilding machines that have been worn or partially destroyed; freezing equipment installation and repair; motor vehicle maintenance and repair; airplane maintenance and repair; film projector repair and maintenance; safe maintenance and repair; retreading of tires; furniture making [repair]; leather care, cleaning and repair; washing of linen; dry cleaning; disinfecting; fire alarm installation and repair; telephone installation and repair; artificial snow-making services. Transport; salvaging; car transport; air transport; vehicle rental; physical storage of electronically stored data or documents; rental of diving suits; water supplying; operating canal locks; parcel delivery; travel reservation; launching of satellites for others. Educational services; religious education; organization of exhibitions for cultural or educational purposes; lending library services; online publication of electronic books and journals; rental of movie projectors and accessories; providing sports facilities; animal training; operating of lotteries.

Abrégé

A grounding grid conductor positioning method, comprising: acquiring induced magnetic field signals collected by a sensor array vertically arranged above a grounding grid conductor, wherein the induced magnetic field signals are generated by injecting an excitation current into the grounding grid conductor by means of an excitation source; according to the induced magnetic field signals and the excitation current, determining the magnetic flux density component parallel to the ground of the grounding grid conductor; taking the derivative of the magnetic flux density component parallel to the ground of the grounding grid conductor, determining the main peak coordinates corresponding to the magnetic flux density component, and positioning the grounding grid conductor according to the main peak coordinates. Further provided are a grounding grid conductor positioning apparatus and system, an electronic device, a computer-readable storage medium, and a computer program product.

Classes IPC  ?

• G01V 3/11 - Prospection ou détection électrique ou magnétiqueMesure des caractéristiques du champ magnétique de la terre, p. ex. de la déclinaison ou de la déviation fonctionnant au moyen de champs magnétiques ou électriques produits ou modifiés par les objets ou les structures géologiques, ou par les dispositifs de détection en utilisant des cadres inducteurs pour la détection d'objets conducteurs, p. ex. d'armes à feu, de câbles ou de tuyaux
• G01R 33/02 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques

Abrégé

The present invention relates to a transformer area electricity theft prevention analysis method based on electricity consumption information collection. An association analysis algorithm is designed, and relationships between electricity theft phenomena and multi-dimensional electrical feature parameters are established, thereby solving classification and prediction of various electricity theft events; and electricity theft event models of the feature parameters are established on the basis of collected electricity consumption information data, so as to perform electricity theft prevention analysis, thereby reducing false negatives of electricity theft events.

Classes IPC  ?

• G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"

Abrégé

The present application provides a control method and apparatus for a direct-current energy consuming device, an electronic device, a storage medium, and a program product. The method comprises: obtaining a direct-current bus voltage value within a control period; calculating a direct-current bus voltage deviation according to the difference between the ratio of the direct-current bus voltage value to a direct-current bus voltage reference value and 1; and controlling the direct-current energy consuming apparatus to enter, exit, or maintain an original operating state according to a magnitude relationship between the direct-current bus voltage deviation and a preset fluctuation of the direct-current bus voltage.

Classes IPC  ?

• H02J 3/36 - Dispositions pour le transfert de puissance électrique entre réseaux à courant alternatif par l'intermédiaire de haute tension à courant continu
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement

Abrégé

Provided is a risk assessment method for power transmission line windage yaw flashover. The method includes determining the influence factors of power transmission line windage yaw flashover and setting risk assessment indexes according to the influence factors (S101); generating the standard cloud of the risk assessment indexes according to the incident occurrence probabilities and the consequence levels of the risk assessment indexes (S103); scoring the influence factors according to the risk assessment indexes and generating the risk cloud of the risk assessment indexes according to scoring results (S105); and performing a two-dimensional similarity calculation on the risk cloud and the standard cloud to obtain two-dimensional similarity between the risk cloud and the standard cloud and determining the risk level of the power transmission line windage yaw flashover according to the two-dimensional similarity (S107).

Classes IPC  ?

• G06Q 10/0635 - Analyse des risques liés aux activités d’entreprises ou d’organisations
• G06Q 10/0639 - Analyse des performances des employésAnalyse des performances des opérations d’une entreprise ou d’une organisation
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof-of-existence data, certify the proof-of-existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockchains.

Classes IPC  ?

• G06Q 30/018 - Certification d’entreprises ou de produits
• H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système

Abrégé

A modulation method for a direct current (DC) coupling converter with less DC voltage sensors includes: obtaining a voltage modulated wave vr* and a current reference value ig* of the DC coupling converter; performing judgment on the voltage modulated wave vr* and the current reference value ig*, and determining a switch state of the DC coupling converter based on a result of the judgment; and when a DC voltage sensor of an electrolytic capacitor of an intermediate power module is removed, modulating a DC voltage sensor based on the voltage modulated wave vr* and a difference between DC voltages on electrolytic capacitors of the other two power modules. When the intermediate DC-side voltage sensor is removed, DC voltages of various modules of a converter system of a DC coupling power unit can still be balanced, and quality of a grid-connected current is not affected by a fault.

Classes IPC  ?

• H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique

Abrégé

Provided in the present disclosure is a specific power transformer collection terminal capable of configuring a local communication module. The specific power transformer collection terminal comprises: a specific power transformer collection terminal body, a control portion, which is arranged inside the specific power transformer collection terminal body, and a carrier coupling interface, which is arranged at the position of a first configurable portion that is reserved by the specific power transformer collection terminal body, wherein the control portion is used for local load control; and the carrier coupling interface supports the access of an HPLC portion or an HPLC + HRF dual-mode portion, and is used for implementing local networking communication of the specific power transformer collection terminal.

Classes IPC  ?

• H04L 49/40 - Détails de construction, p. ex. alimentation électrique, construction mécanique ou fond de panier

Abrégé

Disclosed in the present disclosure is an intelligent outdoor combined electrical device for grid-connected and off-grid control protection of a medium-voltage microgrid, the device comprising a current transformer, a disconnector mechanism, an outdoor circuit breaker, an electric isolation drive mechanism and an outdoor jet fuse. The current transformer is installed on a leading-out end of the outdoor circuit breaker, the disconnector mechanism is connected to the current transformer, the disconnector mechanism is connected to the leading-out end of the outdoor circuit breaker by means of the current transformer, a top end on the side of the disconnector mechanism away from the current transformer is connected to a top end of the outdoor jet fuse, a bottom end on the side of the disconnector mechanism away from the current transformer is connected to a bottom end of the outdoor jet fuse, and the electric isolation drive mechanism is arranged on the bottom end of the disconnector mechanism.

Classes IPC  ?

• H01H 89/00 - Combinaisons de plusieurs types d'interrupteurs électriques, de relais, de sélecteurs et de dispositifs de protection d'urgence, non couvertes par un des autres groupes principaux de la présente sous-classe

Abrégé

A method for identifying a dominant overvoltage of a high-proportion new energy power system includes the following operations. A voltage amplitude of a new energy terminal and a voltage amplitude of an alternating-current (AC) bus at any moment after faults of the new energy terminal and the AC bus are cleared, are determined. An overvoltage limit ratio is determined according to a ratio of the voltage amplitude of the new energy terminal to the voltage amplitude of the AC bus. A critical overvoltage limit ratio is determined. A maximum new energy terminal voltage value and a maximum AC bus voltage value bearable for the new energy terminal and the AC bus are determined respectively. Identification of a dominant voltage safety constraint is performed and an identification result is determined.

Classes IPC  ?

• H02H 7/22 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour appareillage de distribution, p. ex. système de barre omnibusCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour dispositifs de commutation

Abrégé

The present disclosure provides an air mixer for a compressed air foam (CAF) fire-extinguishing system. A foam concentrate and compressed air are respectively transported by a liquid inlet pipe and an air inlet pipe. When the compressed air and the foam concentrate enter a straight pipe through a first tapered pipe, they reach an outlet end of the first tapered pipe through a path narrowing due to different cross-section diameters at two ends of the first tapered pipe, and there is a compression process. Under an action of a high-pressure airflow, the foam concentrate is fully mixed. The mixed foam concentrate reaches a porous plate of the straight pipe and can be mixed secondarily. When the foam concentrate is discharged by a second tapered pipe, a flow path widens and there is a release process.

Classes IPC  ?

• A62C 31/12 - Buses spécialement conçues pour la lutte contre l'incendie pour délivrer de la mousse ou de la mousse pulvérisée
• A62C 5/02 - Fabrication de substances extinctrices immédiatement avant l'emploi de mousse
• A62C 31/28 - Accessoires pour dispositifs de jet, p. ex. supports

Abrégé

Disclosed in the embodiments of the present application are a high-speed quantum regulation magnetic measurement method and system. The method comprises: a laser source emitting a laser to a diamond NV center, such that the diamond NV center transmits a fluorescence intensity signal; a regional frequency positioning component performing measurement to obtain the current magnetic field intensity to be measured, obtaining a preliminary positioning frequency on the basis of said current magnetic field intensity, and sending the preliminary positioning frequency to a microwave modulator; the microwave modulator expanding a frequency range by taking the preliminary positioning frequency as the center, and performing cyclic frequency sweeping by taking the expanded frequency range as a cycle; and a data collection and processing system collecting fluorescence intensity signals under different scanning frequencies, parsing the fluorescence intensity signals under different scanning frequencies to obtain frequency values at different wave troughs, and obtaining different magnetic field intensities according to the frequency values at different wave troughs and a central frequency value.

Classes IPC  ?

• G01R 33/24 - Dispositions ou appareils pour la mesure des grandeurs magnétiques faisant intervenir la résonance magnétique pour la mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques
• G01R 33/032 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs magnéto-optiques, p. ex. par effet Faraday

Abrégé

A sound barrier system for reducing electric field distortion includes a wall unit and a sound barrier unit. The sound barrier unit includes a sound barrier plate that, from top to bottom, includes an arc-shaped part, an inclined part, and a vertical part that are integrally formed, wherein a center of a circle of the arc-shaped part points towards an interior of a power facility, the inclined part is tilted away from the power facility from top to bottom and is tangent to the arc-shaped part, and a lower end of the vertical part is arranged on a top of the wall unit. The sound barrier system further includes an energy supply pipeline, a security device, and an online monitoring device. The sound barrier system can be easily manufactured, and not only can improve an acoustic environment around a substation, but also can reduce an amplitude of an electric field.

Classes IPC  ?

• G10K 11/162 - Sélection de matériaux
• G01H 3/12 - AmplitudePuissance par des moyens électriques
• H02B 1/26 - EnveloppesLeurs parties constitutives ou accessoires à cet effet

Abrégé

An imaging method and system for a residual stress in a basin insulator, and a test block preparation method. The imaging method comprises: preparing a standard industrial test sample of a basin insulator by cutting, and testing an acoustoelastic coefficient; then acquiring residual stress data of the basin insulator, acquiring sound velocity distribution of spatial point positions of the basin insulator, and finally obtaining a stress distribution cloud map of the basin insulator by calculating attribute values and coordinate data of positions under test; and performing reliability verification on the basis of the residual stress data.

Classes IPC  ?

• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 1/28 - Préparation d'échantillons pour l'analyse

Abrégé

A method for constructing a transverse audible noise model of a transmission corridor, a microphone support device, and an audible noise measurement apparatus. The method comprises: synchronously measuring noise separately at transmission corridor background noise measurement points (23), N transmission corridor noise measurement points (21), and M transmission corridor noise inspection measurement points (22), so that an objective function formula (1) fits to a point array constructed by a noise correction value equation DBAnnn,0); if a mean error between a noise correction value equation DBBmmm,0) meets a precision requirement, obtaining a transverse audible noise model (1) of the transmission corridor, wherein z is audible noise at a point (x, 0).

Classes IPC  ?

• G01H 17/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores non prévue dans les autres groupes de la présente sous-classe
• H04R 1/02 - BoîtiersMeublesMontages à l'intérieur de ceux-ci
• G01R 29/26 - Mesure du coefficient de bruitMesure de rapport signal-bruit

Abrégé

A shielding resistive divider and a voltage division measurement apparatus. The shielding resistive divider comprises a high-voltage arm (1) and a low-voltage arm (2), the high-voltage arm (1) comprising a plurality of high-voltage modules (3) connected in series, the low-voltage arm (2) being a low-voltage module (4) which is connected in series to the bottommost high-voltage module (3) of the high-voltage arm (1). Each high-voltage module (3) comprises a measurement branch high-voltage resistor (5) and a shielding branch high-voltage resistor (6), which are electrically isolated but are connected in parallel. The low-voltage module (4) comprises a measurement branch low-voltage resistor (8) and a shielding branch low-voltage resistor (9), which are electrically isolated but are connected in parallel. In the shielding resistive divider and the voltage division measurement apparatus, the high-voltage arm (1) is modularized, namely, the high-voltage arm (1) is formed by a different number of high-voltage modules (3), such that the present application can measure voltages at different levels, and has simple mounting mode, is easy to disassemble and facilitates maintenance and repair. In addition, two electrically-isolated resistive branches are coaxially arranged in the high-voltage modules (3), thereby greatly reducing the earth stray capacitance of the high-voltage resistor (5) of the measurement branch, and shortening the response time of the voltage divider.

Classes IPC  ?

• G01R 15/04 - Diviseurs de tension

Abrégé

The present invention provides an FPGA-based communication network quality test method and apparatus. The method comprises: a primary test apparatus obtaining externally inputted test parameters, generating a first test data packet according to the test parameters, and wirelessly sending the first test data packet to a secondary test apparatus; the secondary test apparatus using the first test data packet to compute network quality data at a secondary device side, and according to the first test data packet and the network quality data at the secondary device side, generating a second test data packet, and returning the second test data packet to the primary test apparatus; and the primary test apparatus using the second test data packet to compute network quality data at a primary device side, and based on the network quality data at the primary device side and at the secondary device side, obtaining the quality of the communication network. The present invention achieves rapid, accurate, and real-time network quality testing, displays network performance parameters, and satisfies the requirements of network quality testing for power systems.

Classes IPC  ?

• H04W 12/02 - Protection de la confidentialité ou de l'anonymat, p. ex. protection des informations personnellement identifiables [PII]

Abrégé

A method for evaluating an aging state of a silicone rubber composite insulator includes: step 1: collecting samples from the silicone rubber composite insulator, and subjecting samples in a surface layer and a center layer successively to hydrophobicity, flexing resistance, hardness, color, and absorbance tests; step 2: determining relevant data of the samples in a natural evolution process according to the tests in step 1; step 3: subjecting the samples to thermo-oxidative aging; and after the thermo-oxidative aging is completed, subjecting the samples to a hardness test of artificial accelerated evolution, and calculating position coordinates (F1, F2) of the samples in an aging space; and step 4: classifying the samples in advance and solving an aging state centroid of each classified population, calculating a minimum aging distance based on the position coordinates in step 3, and evaluating the aging state of the silicone rubber composite insulator.

Classes IPC  ?

• G01N 33/44 - RésinesMatières plastiquesCaoutchoucCuir
• G01N 3/20 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de flexion
• G01N 3/40 - Recherche de la dureté ou de la dureté au rebondissement
• G01N 21/31 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique

Abrégé

The method includes: determining required virtual inertia based on a frequency change rate monitored at a grid connection point of a photovoltaic grid-connected system; obtaining values of indexes that affect virtual inertia provided by each virtual synchronous generator (VSG) control unit in a photovoltaic cluster of the photovoltaic grid-connected system; determining, by using a predetermined function equation, a function value corresponding to each index; and determining an allocation proportion of the required virtual inertia in each VSG control unit based on the function value corresponding to each index. A problem of difficult conversion between a plurality of kinds of performance during operation of a power system is resolved, the frequency change rate is suppressed to a certain extent, and a stable state is recovered quickly.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie

Abrégé

A blockchain-based transaction system for a green certificate includes an audit node, a proxy node, and an off-chain node. The proxy node is used by a power producer and a purchaser; the audit node verifies qualification information of the power producer, and send a green certificate to the power producer; the off-chain node predicts a transaction price of a next transaction; when receiving sale information of the power producer and purchase information of the purchaser, the proxy node sends the sale information, a digital signature of the power producer, the purchase information, and a digital signature of the purchaser to the off-chain node; the off-chain node matches the sale information and the purchase information, and sends successfully matched transaction information to the proxy node; the proxy node sends the successfully matched transaction information to a transaction smart contract; and the transaction smart contract performs transaction processing.

Classes IPC  ?

• G06Q 20/38 - Protocoles de paiementArchitectures, schémas ou protocoles de paiement leurs détails
• G06Q 20/40 - Autorisation, p. ex. identification du payeur ou du bénéficiaire, vérification des références du client ou du magasinExamen et approbation des payeurs, p. ex. contrôle des lignes de crédit ou des listes négatives
• G06Q 30/08 - Ventes aux enchères

Abrégé

A power distribution network energy storage voltage regulation partition optimization method and apparatus, a medium and a device. The power distribution network energy storage voltage regulation partition optimization method comprises the following steps: performing cluster partitioning on a power distribution network according to power distribution network operation parameters (S110); and adjusting the voltage of each cluster partition by means of an energy storage device, constructing a partition optimization model for the energy storage device to adjust the voltage of the cluster partition, and obtaining a node range in which each energy storage device is responsible for voltage regulation (S120).

Classes IPC  ?

• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/06 - Commande du transfert de puissance entre réseaux connectésCommande du partage de charge entre réseaux connectés
• H02J 3/16 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par réglage de puissance réactive

Abrégé

The present application discloses a hardware pipeline GTP data shunting method and apparatus for a low-delay power service. The method comprises: receiving a first power service data packet from a base station; parsing the first power service data packet, to obtain a target tunnel endpoint identifier of the first power service data packet; on the basis of the target tunnel endpoint identifier, querying whether the first power service data packet satisfies a processing condition of a mobile edge computing device, to obtain a query result; executing a shunting operation corresponding to the query result on the first power service data packet, so as to send the first power service data packet to a target service terminal. The present application uses an FPGA module to analyze power service data packets sent by a base station to a mobile edge computing platform, to screen out a power service data packet that can be processed by a mobile edge computing device, so that shunting of the power service data packets is implemented, transmission delay is reduced, and service demands are satisfied; in addition, power service customization is implemented, improving the efficiency of power grid services.

Classes IPC  ?

• H04L 69/22 - Analyse syntaxique ou évaluation d’en-têtes

Abrégé

A distribution network current protection sensitivity analysis method and apparatus. The method comprises: acquiring, according to distribution network parameters, a first short-circuit current and a system short-circuit capacity when no distributed power supply is connected to a power system (S101); determining a fault short circuit ratio according to a relative relationship between a grid connection position of a distributed power supply in the power system, and a current measurement point position and a fault position (S102); when the distributed power supply uses an optimal positive sequence voltage support policy, calculating the phase of an output current of the distributed power supply according to a phase voltage of the power system, positive and negative sequence short-circuit impedance, line impedance, the magnitude of the output current of the distributed power supply, line impedance between buses, and a line impedance angle (S103); according to the first short-circuit current, the fault short circuit ratio, and the phase of the output current of the distributed power supply, determining a second short-circuit current when the distributed power supply is connected to the power system (S104); and performing evaluation of current protection sensitivity according to a current protection setting value and the second short-circuit current (S105). By means of the distribution network current protection sensitivity analysis method and apparatus, the magnitude of a short-circuit current can be calculated without an iterative calculation using a computer, thereby achieving the evaluation of current protection sensitivity.

Classes IPC  ?

• H02H 3/00 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion
• H02H 3/08 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge

Abrégé

Disclosed in the present invention are a method and apparatus for constructing a digital twin hybrid model of a main device of a power system. The method comprises: performing information coding on an operation state and fault association knowledge graph of a main device of a power system to generate a density vector; embedding the density vector into a first layer of a ConvGRU neural network for performing initial training of a data-driven model to obtain a data-driven initial model; optimizing a convolutional base and a classifier of the data-driven initial model by means of historical collected data to obtain an optimized data-driven model; and enabling the data-driven model and a mechanism model of the main device of the power system to cooperatively operate in parallel, and performing gradient descent of a loss function of the neural network by means of a solver, so as to construct a digital twin hybrid model of the main device of the power system.

Classes IPC  ?

• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle

Abrégé

The embodiments of the present application relates to a power grid distribution network frame topology construction method based on a power distribution and utilization holographic data model, comprising: acquiring graphic data of a plurality of power grid devices in a power grid PMS system, converting the graphic data into topological data, and writing the topological data into a graph database; on the basis of the graph database, identifying among the plurality of power grid devices a transformer substation node and a plurality of tower nodes that have a connection relationship with the transformer substation node; determining a sag-related parameter on the basis of the distance between each two adjacent towers among the plurality of tower nodes, and constructing a sag line segment function on the basis of the sag-related parameter; and, on the basis of the sag line segment function, drawing an overhead line curve between each two adjacent towers, so as to obtain a power grid distribution network frame topological graph. Therefore, the method constructs a unified topological model by using the graph database and a three-dimensional technology, and calculates and visualizes the three-dimensional topological line sags, thereby improving the operation and maintenance management level.

Classes IPC  ?

• G06F 30/18 - Conception de réseaux, p. ex. conception basée sur les aspects topologiques ou d’interconnexion des systèmes d’approvisionnement en eau, électricité ou gaz, de tuyauterie, de chauffage, ventilation et climatisation [CVC], ou de systèmes de câblage
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• G06F 16/23 - Mise à jour
• G06F 16/22 - IndexationStructures de données à cet effetStructures de stockage
• G06F 113/04 - Réseaux de distribution électrique

Abrégé

The present application belongs to the technical field of identification and locating of defects of transformer devices. Disclosed are a method and system for identifying and locating a three-dimensional defect of a transformer substation. The method of the present application comprises: collecting multi-source inspection data and point cloud data of a transformer substation, and recording a spatial position and posture of an inspection and collection device; on the basis of the point cloud data, performing fine locating on the inspection and acquisition device in a pre-built real-view three-dimensional model of the transformer substation; generating inspection data with extensible timing; generating component-level data; determining change data of transformer substation parameters in the component-level data, and performing defect diagnosis on a transformer substation component device on the basis of the change data, so as to identify the defect type of the transformer substation device component and locate a defect space of the transformer substation device component. By means of the present application, rapid diagnosis and locating of a typical external thermal defect and a typical insulation defect of a transformer substation device can be realized.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie
• G06T 7/33 - Détermination des paramètres de transformation pour l'alignement des images, c.-à-d. recalage des images utilisant des procédés basés sur les caractéristiques

Abrégé

Disclosed in embodiments of the present invention are a power distribution network simulation method, system and device, and a computer-readable storage medium. The method comprises: according to a model difference and an interaction effect between a cyber system and a physical system in a power distribution network and the scale and accuracy of multi-scenario simulation verification, performing multi-level and multi-scale platform architecture modeling to obtain a simulation platform architecture; on the simulation platform architecture, according to coupling characteristics between the physical system and the cyber system in the power distribution network, performing fusion modeling on cyber-physical simulation systems under time-varying information and non-deterministic conditions to obtain a power distribution network cyber-physical system; on the basis of the simulation platform architecture, in a concurrent fault scenario of the physical system, a communication network and the cyber system, performing real-time simulation on the power distribution network cyber-physical system to determine a fault simulation result of the power distribution network; and on the basis of the simulation platform architecture, performing reliability simulation evaluation on the power distribution network cyber-physical system by using a reliability evaluation index to determine a reliability simulation result of the power distribution network.

Classes IPC  ?

• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

Disclosed in embodiments of the present disclosure is an alternating current power transmission system, comprising: a converter. The converter comprises a plurality of converter valve groups, one end of each converter valve group is connected to a first alternating current system, each bridge arm of the other end of each converter valve group is connected to a winding at one side of a first transformer in series, and a winding at the other side of the first transformer is connected to a second alternating current system. According to the present disclosure, a winding at one side of a transformer is connected to each bridge arm of a converter, so that the winding can be used for simultaneously inhibiting an interphase circulating current and improving the utilization rate of an IGBT switching device in the converter, the reactance of the bridge arms of the converter is omitted while the normal work of a converter valve is ensured, and thus the impedance of the system can be reduced, and the transmission capability of the system is improved.

Classes IPC  ?

• H02M 5/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques
• H02M 5/10 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des transformateurs
• H02M 5/293 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

The present disclosure relates to the technical field of integrated circuits, and particularly relates to a voltage reference generation circuit, and a chip and an electronic device. The voltage reference generation circuit comprises: a reference voltage generation circuit, which is used for generating a first reference voltage; and a voltage stabilization circuit, which comprises a voltage conversion circuit, a source-current voltage stabilization branch and a sink-current voltage stabilization branch, wherein the voltage conversion circuit is used for converting the first reference voltage into a voltage reference, converting the voltage reference into a first control voltage when the voltage reference generation circuit receives an external source current, and converting the voltage reference into a second control voltage when the voltage reference generation circuit receives an external sink current, the source-current voltage stabilization branch receives the first control voltage, and the sink-current voltage stabilization branch receives the second control voltage, so as to perform voltage stabilization on the voltage reference, thereby improving the reliability of the circuit.

Classes IPC  ?

• G05F 3/26 - Miroirs de courant
• G05F 1/10 - Régulation de la tension ou de l'intensité
• G05F 1/56 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu utilisant des dispositifs à semi-conducteurs en série avec la charge comme dispositifs de réglage final

Abrégé

A risk evaluation method for a windage yaw flashover, comprising: determining an influence factor of a windage yaw flashover of a power transmission line, and setting a risk evaluation index according to the influence factor (S101); generating standard cloud of the risk evaluation index according to an accident occurrence probability and consequence level of the risk evaluation index (S103); scoring the influence factor according to the risk evaluation index, and generating risk cloud of the risk evaluation index according to a scoring result (S105); and performing two-dimensional proximity calculation on the risk cloud and the standard cloud to obtain two-dimensional proximity between the risk cloud and the standard cloud, and determining risk level of the windage yaw flashover of the power transmission line according to the two-dimensional proximity (S107).

Classes IPC  ?

• G06Q 10/0635 - Analyse des risques liés aux activités d’entreprises ou d’organisations
• G06Q 10/0639 - Analyse des performances des employésAnalyse des performances des opérations d’une entreprise ou d’une organisation
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

A monitoring system based on a digital converter station includes a first monitoring terminal deployed at a first-level monitoring side, a second monitoring terminal deployed at a second-level monitoring side, and a third monitoring terminal deployed at a third-level monitoring side; the monitoring terminal at each level includes a communication module, a human-machine interaction module, a device status monitoring module, a device alarm management module, a video fusion processing module, and a data transmission adjustment and control module.

Classes IPC  ?

• G06V 10/80 - Fusion, c.-à-d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification
• G06V 20/52 - Activités de surveillance ou de suivi, p. ex. pour la reconnaissance d’objets suspects
• H04L 43/0829 - Perte de paquets
• H04L 43/0864 - Retards de voyage aller-retour

Abrégé

The present application discloses a dispatching and control cloud data processing method, device and system. The method includes the following operations: pilot node device acquires a global scheduling task, decomposes the global scheduling task to obtain scheduling tasks, issues the scheduling tasks to collaborative node device, acquires data collection ranges and data processing rules of the collaborative node devices, and delivers them to the collaborative node devices; the collaborative node devices receive and execute the scheduling tasks issued by the pilot node device; receives the data collection ranges and the data processing rules issued by the pilot node device, acquires, based on the scheduling tasks, collected data in the data collection ranges, processes the acquired collected data according to the data processing rules to obtain the processed data, uploads the processed data to the pilot node device; the pilot node device receives the processed data uploaded by the collaborative node devices.

Classes IPC  ?

• G06F 9/48 - Lancement de programmes Commutation de programmes, p. ex. par interruption

Abrégé

A wind power forecasting error determination method, comprising: on the basis of historical data of a wind farm, acquiring data required by wind power forecasting error decoupling; in view of an actual wind farm forecasting process, dividing wind power forecasting into three operations, i.e., numerical weather prediction, a wind-electricity conversion model and prediction result correction; calculating an error caused by the prediction result correction; fitting the wind-electricity conversion model, fitting the output of the wind-electricity conversion model under real meteorological conditions, comparing the output with the output of the wind-electricity conversion model under numerical weather prediction conditions, and calculating the change in an error of the wind-electricity conversion model under different meteorological conditions; integrating a plurality of operations, and establishing a wind power error decoupling equation; and solving the equation, and calculating an error proportion.

Classes IPC  ?

• G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
• G06Q 50/06 - Fourniture d’énergie ou d’eau
• G06N 3/04 - Architecture, p. ex. topologie d'interconnexion
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

The embodiments of the present invention belong to the technical field of communications. Provided are a data flow control method and apparatus based on single-bus information transmission, and a communication system. The data flow control method is based on a data receiving end, and comprises: detecting the state of a data buffer area of a data receiving end, wherein the state comprises the data buffer area being idle and the data buffer area being saturated; when the state of the data buffer area changes, sending an initialization signal to a data sending end; and when an initialization response signal from the data sending end is not received for more than a preset time, repeatedly sending the initialization signal; and in response to the initialization response signal from the data sending end, sequentially sending to the data sending end a write data preparation signal and the state of the data buffer area, wherein the initialization signal, the write data preparation signal and the state of the data buffer area are sent by means of a single flow control bus. By means of the embodiments of the present invention, the transmission of communication states between bus devices can be realized, and thus the loss of communication data can be effectively prevented.

Classes IPC  ?

• H04L 47/30 - Commande de fluxCommande de la congestion en combinaison avec des informations sur l'occupation de mémoires tampon à chaque extrémité ou aux nœuds de transit
• H04L 12/40 - Réseaux à ligne bus

Abrégé

A method for quantifying and assessing a scheduling risk considering source load fluctuation and rescheduling, and an apparatus for quantifying and assessing a scheduling risk considering source load fluctuation and rescheduling are provided. The method includes establishing a scene set considering a new energy disturbance; establishing and solving a rescheduling optimization model considering the new energy disturbance in each scene based on a preset scheduling plan according to the scene set, so as to obtain a solving result of the rescheduling optimization model; and calculating a risk quantifying and assessing result corresponding to the preset scheduling plan according to the solving result of the rescheduling optimization model.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

Disclosed in the present invention are a data sending method and apparatus, a data receiving method and apparatus, an electronic device, a chip, and a storage medium. The method comprises: after receiving a first express message and when a second express message is being sent by means of an express service interface indicated by a second interface identifier, sending a first steal control signal on the basis of first tuple information of the first express message; and according to the first steal control signal, controlling the second express message to pause sending by means of the express service interface indicated by the second interface identifier, and controlling the first express message to start sending by means of an express service interface indicated by a first interface identifier. A plurality of express service interfaces and a steal control signal carrying a steal indication and an interface identifier are designed for different levels of time delay and jitter requirements, a frame structure does not need to be changed, and the frame structure is consistent with a frame structure defined by standards, such that the probability of an opposite end not being able to receive a data stream is reduced, and the universality is improved.

Classes IPC  ?

• H04L 47/10 - Commande de fluxCommande de la congestion

Abrégé

A smart terminal hardware interface test system, and a test method thereof. The system comprises: a smart terminal under test, said smart terminal comprising a core MCU board (1) and an interface group under test (2); and further comprises a test apparatus, the test apparatus comprising a module interface group (3), a module interface switching control module (4), a module communication test module (5), a voltage measurement module (6), a current measurement module (7), a load control module (8) and an MCU main control module (9). The module interface switching control module (4) is electrically connected to the module interface group (3), the module communication test module (5), the voltage measurement module (6), the current measurement module (7) and the MCU main control module (9). The voltage measurement module (6), the current measurement module (7) and the load control module (8) are all electrically connected to the MCU main control module (9). The current measurement module (7) is further electrically connected to the load control module (8). The present invention has the characteristics of improving test efficiency, lowering proficiency requirements of testers, and reducing costs.

Classes IPC  ?

• H04B 17/00 - SurveillanceTests
• G01R 35/04 - Test ou étalonnage des appareils couverts par les autres groupes de la présente sous-classe des instruments pour mesurer l'intégrale dans le temps d'une puissance ou d'une intensité

Abrégé

A high-frequency transformer includes: an iron core, primary windings and secondary windings, wherein the iron core is of an integrated equilateral triangle structure, the primary windings and the secondary windings are uniformly wound around three sides of the iron core, and the primary windings and/or the secondary windings are symmetrically distributed on the three sides.

Classes IPC  ?

• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 27/24 - Noyaux magnétiques
• H01F 30/12 - Transformateurs diphasés, triphasés ou polyphasés

Abrégé

1212122(x), and input the processed unit-side frequency signal into the frequency modulation control loop, so as to realize low-frequency oscillation suppression.

Classes IPC  ?

• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux

Abrégé

Provided in the present disclosure are a FlexE-based power communication service resource allocation method and apparatus, belonging to the technical field of communications. The method comprises: on the basis of an actual physical network, constructing an undirected graph model, the points in the undirected graph model representing physical nodes, and the sides in the undirected graph model representing physical links; and, on the basis of the undirected graph model, solving an optimization problem with the aim of minimizing the allocation of physical network resources while satisfying a slice service requirement, so as to obtain the latest use condition of the physical network resources and network topology mapping of a current network slice request. For FlexE network slice requests for different service requirements, the FlexE-based power communication service resource allocation method and apparatus provided by the present disclosure can reasonably map the slice requests to actual physical networks while meeting the slice service requirements such as the time delay bandwidth, thereby optimizing the allocation of physical network resources to the maximum extent, reducing the slice cost for tenants, and increasing the income of network providers.

Classes IPC  ?

• H04L 41/0896 - Gestion de la bande passante ou de la capacité des réseaux, c.-à-d. augmentation ou diminution automatique des capacités

Abrégé

The present invention provides a calculation method and apparatus for the schedulable potential of active loads, a terminal, and a storage medium. The method comprises: respectively establishing behavior characteristic mathematical models of different active loads on the basis of the behavior characteristics of the active loads in a power distribution network, the active loads being distributed active loads; and aggregating the behavior characteristic mathematical models of the different active loads by using a Minkowski summation mode, so as to obtain active load schedulable potential data that uses an intelligent building as a unit. According to an aggregation method based on a Minkowski sum, the present invention can aggregate original distributed active loads into active load schedulable potential data that uses an intelligent building as a unit, so that the behavior characteristics of the active loads can be retained, the aggregation accuracy is improved, the calculation mode is more objective, and the data characteristics are more comprehensive.

Classes IPC  ?

• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
• G06N 3/04 - Architecture, p. ex. topologie d'interconnexion

Abrégé

The present application discloses a monitoring system and method based on a digital converter station. The monitoring system comprises a first monitoring terminal deployed at a first-level monitoring side, a second monitoring terminal deployed at a second-level monitoring side, and a third monitoring terminal deployed at a third-level monitoring side. The monitoring terminal at each level comprises a communication module, a human-computer interaction module, a device state monitoring module, a device alarm management module, a video fusion processing module, and a data transmission regulation and control module. The video fusion processing modules are respectively deployed at the monitoring terminals at all levels, so that the monitoring terminals at all levels can locally respond to monitoring retrieval requests of users at all levels; a station end does not need to completely respond to the monitoring retrieval requests of the users at all the levels, a user can directly view a video fusion picture from the local and does not need to retrieve the video fusion picture from a remote end, and therefore, when network bandwidth resources are limited, network delay can be effectively reduced, the real-time performance of video picture display is improved, and the use effect of a video fusion application and user experience are improved.

Classes IPC  ?

• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c.-à-d. systèmes dans lesquels le signal vidéo n'est pas diffusé

Abrégé

A load decoupling loading apparatus for a wind turbine generator set, the apparatus comprising a plurality of actuators, a first loading bearing (201), a rotating shaft (202) and a second loading bearing (203), wherein the rotating shaft (202) is horizontally arranged with respect to the ground; the first loading bearing (201) and the second loading bearing (203) are respectively connected to two ends of the rotating shaft (202) in a sleeved manner, the end of the first loading bearing (201) that is away from the rotating shaft (202) is connected to an external electric motor, and the end of the second loading bearing (203) that is away from the rotating shaft (202) is connected to an external test prototype; the plurality of actuators are respectively connected to the first loading bearing (201) and the second loading bearing (203), and the actuators provide a five-degree-of-freedom load for the test prototype by means of the first loading bearing (201) and the second loading bearing (203); and the electric motor provides a torque load for the test prototype. The control over a plurality of actuators in the loading apparatus is implemented according to a five-degree-of-freedom load, thereby enhancing the loading control accuracy of a transmission chain of a wind turbine generator set and improving the experimental precision of the wind turbine generator set. Further provided are a load decoupling loading system for a wind turbine generator set, a load decoupling loading method for a wind turbine generator set, a simulation control system for a load decoupling loading method for a wind generator set, and a computer device and a computer-readable storage medium.

Classes IPC  ?

• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G01M 13/025 - Bancs d’essai avec moyens d’entraînement en rotation et de chargeSimulations de charge ou d’entraînement
• F03D 17/00 - Surveillance ou test de mécanismes moteurs à vent, p. ex. diagnostics

Abrégé

Provided in the embodiments of the present disclosure are a microgrid system, a control method therefor, an electronic device, a storage medium and a program product. The microgrid system comprises: an energy router, a distributed-energy-source power supply system and an electric load group. The energy router comprises an alternating-current bus, a power supply interface group, a load switch group, a communication system and an energy management system. The distributed-energy-source power supply system is electrically connected to the alternating-current bus by means of the power supply interface group. The electric load group is electrically connected to the alternating-current bus by means of the load switch group. The communication system is configured to perform, according to the current operating situation of the microgrid system and a preset energy management policy, communication between the energy router and the distributed-energy-source power supply system as well as the electric load group. The energy management system is configured to control, according to the current operating situation of the microgrid system and the preset energy management policy, the connection mode of the distributed-energy-source power supply system, so as to allow the microgrid system to enter a target power supply mode.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

A method and apparatus for predicting the service life of a CMOS device, an electronic device, and a medium. The method for predicting the service life of a CMOS device comprises: acquiring a time series sample data set of an electrical parameter of a CMOS device under an accelerated stress test, the time series sample data set comprising time series sample data of a degradation amount of the electrical parameter characterizing the service life of the CMOS device (S101); obtaining a training set on the basis of the time series sample data set (S102); training a time series model by using the training set to obtain a service life prediction model (S103); and predicting failure time of the CMOS device by using the service life prediction model (S104). The method reduces the time cost of determining the service life of a CMOS device by performing a complete accelerated stress test on the CMOS device in the prior art, improves the product quality inspection efficiency, shortens the production period of CMOS devices, and solves the problem of low production efficiency of CMOS devices.

Classes IPC  ?

• G01R 31/26 - Test de dispositifs individuels à semi-conducteurs
• G06N 3/04 - Architecture, p. ex. topologie d'interconnexion

Abrégé

An inverter impedance measurement method and apparatus, a terminal device and a storage medium, which relate to the technical field of impedance measurement. The method comprises: acquiring a disturbance voltage frequency domain signal and a response current frequency domain signal when a disturbance voltage of a first disturbance frequency is injected to an inverter, and acquiring a disturbance voltage frequency domain signal and a response current frequency domain signal when a disturbance voltage of a second disturbance frequency is injected to the inverter (101); determining a first disturbance voltage signal, a first response current signal, a second disturbance voltage signal and a second response current signal according to the disturbance voltage frequency domain signals and the response current frequency domain signals (102); determining a first impedance of the first disturbance frequency and a second impedance of the second disturbance frequency according to the disturbance voltage signals and the response current signals (103); and determining the impedance of a preset frequency according to the first impedance and the second impedance (104). The precision of inverter impedance measurement can be improved, and the accuracy of subsequent dynamic characteristic analysis of the inverter can thus be improved.

Classes IPC  ?

• G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p. ex. constante de temps
• G01R 27/08 - Mesure de la résistance par mesure à la fois de la tension et de l'intensité

Abrégé

A transient stress suppression method and apparatus for a grid forming type converter. The method comprises: on the basis of a direct-current voltage deviation and an alternating-current voltage deviation of a grid forming type converter, respectively generating a phase instruction and a voltage amplitude instruction; and, on the basis of the phase instruction and the amplitude instruction, generating a sine pulse width modulation signal used for controlling the grid forming type converter. The technical solution can ensure system stability of grid forming type converters, and can effectively cope with the problems of direct-current voltage limit exceeding and system instantaneous over-currents possibly occurring during transient response processes.

Classes IPC  ?

• H02J 3/36 - Dispositions pour le transfert de puissance électrique entre réseaux à courant alternatif par l'intermédiaire de haute tension à courant continu
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

The embodiments of the present application relate to an aqueous high-thermal-conductivity anticorrosive paint, which comprises a component A and a component B, wherein the component A comprises a film-forming substance, deionized water, a dispersing agent, a defoaming agent, a multi-effect cosolvent, a composite thickener and a high-thermal-conductivity additive; and the component B comprises at least one aqueous curing agent and a cosolvent B, the high-thermal-conductivity additive being a carbon-based thermally conductive material. Further disclosed in the present application is a production method for the high-thermal-conductivity anticorrosive paint, which is used for producing the aqueous high-thermal-conductivity anticorrosive paint. In the present application, a high-thermal-conductivity additive is added to a water-soluble film-forming substance, so as to improve the thermal conductivity of an anticorrosive paint; a plurality of cosolvents are added to the water-soluble film-forming substance, such that a good film-forming effect that the high-thermal-conductivity additive is uniformly distributed in a paint film is realized, thereby achieving good thermal conductivity.

Classes IPC  ?

• C09D 175/04 - Polyuréthanes
• C09D 5/08 - Peintures anti-corrosion

Abrégé

The present disclosure belongs to the technical field of optimization scheduling of power distribution networks. Provided are a consistency algorithm-based cloud-edge collaboration regulation and control method and system for a power distribution area group. The method comprises: a leader of each area group sending, to a cloud server, a group power deviation and regulation and control cost information of the corresponding area group; for each area group, the leader of the current area group receiving regulation and control amount information sent by the cloud server; according to the regulation and control amount information, calculating the current cost micro-increment rate of each area in the current area group, and determining a regulation and control power corresponding to the current cost micro-increment rate; and in response to the regulation and control power meeting a preset constraint condition, determining the regulation and control power of the area in the current area group according to the current cost micro-increment rate. In this way, a power grid environment change can be adapted, and the reliability and real-time performance of scheduling of a power distribution network are improved.

Classes IPC  ?

• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase

Abrégé

The present application is suitable for the technical field of photovoltaic inverter planning and design, and provides a configuration optimization method for a microgrid distributed photovoltaic power generation system and a terminal device. The method comprises: acquiring photovoltaic power generation data of a preset fixed number of years of a region where a photovoltaic power generation system is located; on the basis of the capacity ratio and power limit value data of each individual in a differential evolution algorithm population, acquiring the output power and net increased power generation capacity of a photovoltaic inverter in the photovoltaic power generation system; on the basis of the photovoltaic power generation data and the output power of the photovoltaic inverter, calculating the junction temperature of an IGBT by using an XGBoost machine learning algorithm, and estimating the service life of the IGBT; calculating a fitness value of each individual on the basis of the service life of the IGBT and the net increased power generation capacity, and then outputting an optimal capacity ratio and power limit value of the photovoltaic power generation system by using a differential evolution algorithm. The method of the present application can reduce the time consumed for calculating the junction temperature of the IGBT, simplify the reliability evaluation process of the photovoltaic inverter, and determine the optimal capacity ratio and power limit value of the photovoltaic power generation system while the service life of the IGBT and the net increased power generation capacity are taken into account.

Classes IPC  ?

• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle

Abrégé

The embodiments of the present application relate to the technical field of energy storage. Provided are an energy storage device and a power transmission line monitoring system, which improve the energy storage effect of the energy storage device in a harsh environment. The energy storage device provided in the embodiments of the present application comprises an energy storage module and an energy exchange module. The energy storage module comprises a gravity block, and the energy exchange module comprises an electric motor and an electric generator, wherein a crankshaft of the electric motor is in transmission connection with the gravity block so that the electric motor can drive the gravity block to move upwards, and the gravity block can move downwards under the action of its own weight so as to drive the crankshaft of the electric motor to rotate; and the crankshaft of the electric motor is in transmission connection with a crankshaft of the electric generator, so that when the gravity block moves downwards under the action of its own weight to drive the crankshaft of the electric motor to rotate, the crankshaft of the electric motor drives the crankshaft of the electric generator to rotate so that the electric generator generates electricity. According to the embodiments of the present application, the energy storage device is configured to store energy.

Classes IPC  ?

• F03G 3/00 - Autres mécanismes moteurs, p. ex. mécanismes moteurs à gravité ou inertie

Abrégé

The present disclosure relates to the field of power semiconductors, and particularly discloses a super-junction semiconductor device and a manufacturing method therefor. The manufacturing method comprises: etching a first predetermined region of a wafer by means of a deep trench etching process to obtain at least one Ai deep trench, and filling the Ai deep trench with a first epitaxial layer having a doping concentration of NAi to form an i-th-layer epitaxial pillar of a first conductive type; etching a second predetermined region of the wafer by means of the deep trench etching process to obtain at least one Di deep trench, and filling the Di deep trench with a second epitaxial layer having a doping concentration of NDi to form an i-th-layer epitaxial pillar of a second conductive type; and repeating the steps above to manufacture a super-junction structure in the wafer. The technical solution solves the void problem caused by the conventional single epitaxial filling of deep trenches. The method is mainly used for manufacturing a super-junction semiconductor device.

Classes IPC  ?

• H01L 21/336 - Transistors à effet de champ à grille isolée
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée

Abrégé

Provided are an overhead line detection method and system based on a cable inspection robot. The cable inspection robot is suspended on the overhead line. An imaging unit and a laser emission unit are disposed at the front end of the cable inspection robot. The imaging unit is at a first angle to the overhead line. The laser emission unit is at a second angle to the overhead line. The overhead line detection method includes the following steps: controlling the laser emission unit to emit N groups of parallel laser beams to the overhead line to form N parallel laser lines on the overhead line; controlling the imaging unit to shoot the overhead line and the N parallel laser lines to acquire a target detection image; performing image recognition on the target detection image to acquire N laser line diameters corresponding to the N parallel laser lines on the overhead line; and comparing the N laser line diameters with theoretical line diameters at corresponding positions to determine whether the overhead line is abnormal. Therefore, the accuracy and efficiency of the inspection can be greatly improved, and the inspection risk can be reduced.

Classes IPC  ?

• H02G 1/02 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour lignes ou câbles aériens
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

A hierarchical health index evaluation method for an intelligent substation includes: obtaining a basic health index of a device based on static information and dynamic information of the device; obtaining a device correlation based on a communication connection relationship between the device and another device, and correcting the basic health index of the device based on the device correlation to obtain a health index of the device; obtaining a layer-based health index of a layer based on a device health index and a device importance weight of the layer; obtaining a whole-station health index of an intelligent substation based on a layer-based health index of each layer and a sum of device importance weights of each layer; and regulating the intelligent substation based on a health index of each device in the intelligent substation, the layer-based health index of each layer, and the whole-station health index.

Classes IPC  ?

• G06F 21/57 - Certification ou préservation de plates-formes informatiques fiables, p. ex. démarrages ou arrêts sécurisés, suivis de version, contrôles de logiciel système, mises à jour sécurisées ou évaluation de vulnérabilité
• H04L 43/50 - Disposition de test

Abrégé

An automatic fire-extinguishing system and method for a cable tunnel. The system includes an inspection robot, a positioning robot, and guide rails fixed on an inner top of the tunnel, where the inspection robot and the positioning robot are connected to the guide rails respectively, and the positioning robot is arranged in a groove of the inspection robot and able to be moved by the inspection robot along the guide rails; and the positioning robot is able to independently enter and exit an inner space of the inspection robot along the guide rails, and the positioning robot is configured to control a built-in fire-extinguishing mechanism to extinguish fire at a position with a preset distance from a fire source. Both fire-fighting medium docking and fire extinguishing are realized; a quick access to a battery is realized and fire-extinguishing inspection efficiency of a cable tunnel is improved.

Classes IPC  ?

• A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p. ex. chemins de câbles
• A62C 37/36 - Commande des installations de lutte contre l'incendie le signal de déclenchement étant émis par un détecteur distinct de la tuyère
• A62C 27/00 - Engins de lutte contre l'incendie montés sur roues ou véhicules terrestres de lutte contre l'incendie

Abrégé

The present application discloses a terminal device authentication method and system based on an identification public key, and a computer-readable storage medium, the method comprising: determining an access demand and the type of a terminal device, and confirming an identification fingerprint of the terminal device on the basis of the access demand and the type; generating a public key and a private key of the terminal device by means of an identification key generation algorithm and on the basis of the identification fingerprint; and performing, on the basis of the public key and the private key, signing and signature verification on a data message which is sent by the terminal device, and realizing the authentication of the terminal device on the basis of the signature verification result. The identification public key technique used in the present application serves as a lightweight key generation and management method, realizes the binding of a terminal device identifier and a public key, reduces construction costs and operation and maintenance costs of a key system, and is suitable for mass key management of a distributed power source.

Classes IPC  ?

• H04L 9/32 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité comprenant des moyens pour vérifier l'identité ou l'autorisation d'un utilisateur du système
• H04L 9/08 - Répartition de clés

Abrégé

rgrgrr* and a difference value between the DC voltages on electrolytic capacitors in the other two power modules (1, 3). According to the modulation method, when the DC voltage sensor of the electrolytic capacitor in the intermediate power module (2) is removed, the DC voltages of the modules in the DC coupled converter (5) can still be balanced, and the quality of the grid-connected current is not affected by the fault, so that normal operation can be achieved under the reduction of DC voltage sensors.

Classes IPC  ?

• H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/36 - Dispositions pour le transfert de puissance électrique entre réseaux à courant alternatif par l'intermédiaire de haute tension à courant continu

Abrégé

Disclosed in embodiments of the present disclosure are a peak-to-average power ratio reduction method and apparatus, an electronic device, and a readable storage medium. The peak-to-average power ratio reduction method comprises: an input data acquisition step: acquiring input data of a specific dimension in a specific resource element of a specific multi-carrier symbol; and a data rotation step: for the resource element position and the specific dimension of the input data, performing phase rotation on the input data to obtain data after the phase rotation, thereby reducing the peak-to-average power ratio, not introducing nonlinear distortion and out-of-band interference as much as possible, and not causing reduction of signal quality.

Classes IPC  ?

• H04L 27/26 - Systèmes utilisant des codes à fréquences multiples

Abrégé

A dual-magnetic-field energy acquisition sensor and a boost converter thereof, and a control method and apparatus. The boost converter comprises a capacitor and two boost circuits, wherein each boost circuit comprises a magnetic-field energy acquisition source, an input inductor, a switching transistor, and a diode which are connected in sequence; the two boost circuits are connected in parallel and then connected to one end of the capacitor and an external load, and the other end of the capacitor is grounded. By means of two magnetic-field energy acquisition sources, the collection requirements for electromagnetic energy in a wider frequency band range can be satisfied, and the collection efficiency for the electromagnetic energy is improved, thereby solving the problem that the energy collection efficiency is low when the electromagnetic energy is low.

Classes IPC  ?

• H02J 50/10 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif

Abrégé

A multi-sensor data fusion-based self-powered online monitoring system for a transmission line includes a plurality of detection nodes, an optical communication receiving and demodulation module, and a data processing module. The detection nodes each include a vibration energy harvesting module, a sensing module, and an optical communication modulation and transmitting module. The detection node uses a triboelectric nanogenerator (TENG) to convert and harvest energy, uses the sensing module to acquire a plurality of types of sensing data, and uses the optical communication modulation and transmitting module to modulate and transmit the sensing data. The optical communication receiving and demodulation module correspondingly receives and demodulates the sensing data, and transmits the sensing data to the data processing module for processing. The processing includes using a weighted least square method to fuse homogeneous sensing data and using a fuzzy comprehensive evaluation method to analyze heterogeneous sensing data.

Classes IPC  ?

• H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c.-à-d. dans l’air ou le vide
• H02N 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• H04B 10/50 - Émetteurs
• H04B 10/80 - Aspects optiques concernant l’utilisation de la transmission optique pour des applications spécifiques non prévues dans les groupes , p. ex. alimentation par faisceau optique ou transmission optique dans l’eau

Abrégé

Disclosed in the present application are a power grid real-time scheduling optimization method and system, a computer device and a storage medium. The method comprises: acquiring power grid model parameters and power grid operation data; and according to the power grid model parameters and the power grid operation data, obtaining a power grid real-time scheduling adjustment strategy by means of a preset power grid real-time scheduling reinforcement learning training model. Massive operation data of a power grid and load flow calculation simulation technologies can be fused by means of reinforcement learning, and unlike a conventional algorithm, a complex and difficult-to-solve calculation model does not need to be established, so that rapid optimization adjustment of power grid real-time scheduling is achieved, the optimization adjustment cost is reduced, and the matching degree of power grid real-time scheduling and actual operation is improved. The problem of real-time scheduling optimization of a power grid is solved, and the defects of difficulty in modeling in consideration of uncertain factors and slow calculation for solving large-scale optimization in existing algorithms due to the characteristics of strong uncertainty, rapidly increasing control scale and the like of novel power systems are overcome.

Classes IPC  ?

• H02J 3/06 - Commande du transfert de puissance entre réseaux connectésCommande du partage de charge entre réseaux connectés
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

Embodiments of the present disclosure provides a client-side energy measurement data exchange protocol remote testing method and a system. The method comprises: once a test server has received an execute test request sent by test monitoring equipment, generating a unique token code corresponding to the present test, sending said token code to an object being tested by means of the test monitoring equipment, synchronizing, by the test server, a test scheme and test cases with the test monitoring equipment according to the token code, and initiating and executing a client-side energy measurement data exchange protocol remote test; providing simulated data and external stimuli to the object being tested by means of the test monitoring equipment, updating test cases in real time according to test steps and current test feedback of the object being tested, and synchronizing same with the test monitoring equipment, thereby implementing protocol conformance testing and protocol interoperability testing of the object being tested.

Classes IPC  ?

• H04L 43/18 - Analyseurs de protocole
• H04L 43/10 - Surveillance active, p. ex. battement de cœur, utilitaire Ping ou trace-route
• H04L 43/50 - Disposition de test

Abrégé

The present application relates to a method and system for energy storage system control based on a grid-forming converter, a storage medium, and a device. The method comprises: in a virtual frequency modulation control link, acquiring additional reference power on the basis of the actual frequency of a power grid; in a virtual inertia and damping control link, acquiring, on the basis of the additional reference power, an inner potential virtual phase angle output by an energy storage converter; in a virtual excitation control link, acquiring the inner potential amplitude output by the energy storage converter; in a voltage outer loop virtual circuit control link, calculating a current inner loop reference value on the basis of the inner potential amplitude; in a current inner loop control link, determining a reference voltage in a three-phase stationary coordinate system on the basis of the current inner loop reference value and the inner potential virtual phase angle; and inputting the reference voltage to a pulse width modulation (PWM) generator to output a trigger pulse, and controlling an energy storage system according to the trigger pulse.

Classes IPC  ?

• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion

Abrégé

Embodiments of the present disclosure provide a method and apparatus for evaluating the inertia and primary frequency modulation capability of power supply nodes, and a device. The method comprises: injecting a small power disturbance into a power system, and calculating the impedance at each power supply node in the power system; drawing an amplitude response curve corresponding to a frequency response transfer function according to the impedance at the power supply node and the frequency response transfer function formula at the power supply node; and calculating the inertia coefficient and the primary frequency modulation capability coefficient of each power supply node according to each amplitude response curve. In this way, the inertia coefficient and the primary frequency modulation capability coefficient at each power supply node can be calculated in real time on the basis of impedance while ensuring the normal operation of the power system, such that the inertia and the primary frequency modulation capability of the power supply nodes can be quickly and accurately evaluated.

Classes IPC  ?

• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux

Abrégé

The present application relates to the technical field of power system risk assessment. Specifically provided are a power system operation risk assessment method and apparatus, aiming to solve the technical problem of conventional certainty assessment methods having many shortcomings with regard to analyzing characteristics of behaviors of a power system. In the solution, on the basis of a short-term wind/photovoltaic power prediction result, a large number of system operation scenarios are constructed and probabilities and magnitudes of occurrence of operation risks of a system are calculated, an integrated quantitative assessment method which takes the reserve shortage and a section out-of-limit risk of a multi-partition power grid into consideration is proposed, and the uncertainty of wind/photovoltaic output is taken into consideration during scheduling risk assessment, thereby enhancing the capability of the system in pre-determining a risk and ensuring the safe operation of the power grid.

Classes IPC  ?

• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation

Abrégé

Embodiments of the present invention relate to the technical field of local power distribution network self-recovery. Disclosed are a regional power distribution network self-recovery device joint test system and method. The regional power distribution network self-recovery device joint test system comprises a simulation control main unit and a plurality of simulation test terminals, wherein the plurality of simulation test terminals are in one-to-one correspondence to a plurality of self-recovery devices, the simulation control main unit is communicatively connected to the plurality of simulation test terminals, and the simulation test terminals are electrically connected to the corresponding self-recovery devices; the simulation control main unit is used for establishing a distribution network simulation model, exchanging test information with the plurality of simulation test terminals, and performing test result analysis, wherein the test information comprises fault configuration information, first simulation feedback information, and second simulation feedback information; and the simulation test terminals are used for exchanging the test information with the simulation control main unit, converting the fault configuration information, sending the converted fault configuration information to the self-recovery devices, receiving the first simulation feedback information uploaded by the self-recovery devices, and serving as simulation circuit breakers to simulate the switching logic of a primary system of a power distribution network and to generate the second simulation feedback information.

Classes IPC  ?

• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs