Systems, methods, and devices presented herein are directed toward verifying the operation of protective relays in an electric power delivery system. To protect components of the power delivery system, a protection system may be implemented. The protection system may include a relay containing an output contact, a voltage sensor coupled to the output contact, and a current sensor coupled to the output contact. The protection system may also include processing circuitry used to determine the operation of the output contact based on an indication from the voltage senor, the current sensor, or both.
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
H02H 1/00 - Détails de circuits de protection de sécurité
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
A reusable container includes a receptacle having a first side wall including one or more protrusions extending from the first side wall and one or more recesses extending into the first side wall, where the one or more protrusions and the one or more recesses may enable intercoupling with an additional reusable container. The receptacle also having a second side wall, a back wall, a front wall, and a base, where the first side wall, the second side wall, the back wall, the front wall, and the base define an internal space of the receptacle to hold an object. The reusable container may further include a lid, detachably coupled to the receptacle, where the lid may transition from an open configuration to a closed configuration when in a coupled configuration with the receptacle.
An electrical interface device may include a first printed circuit board (PCB) configured to electrically couple one or more electrical contacts to one or more corresponding conductive headers. The electrical interface device may also include a second PCB configured to electrically couple the one or more corresponding conductive headers to one or more corresponding pins of a connector.
H01R 12/52 - Connexions fixes pour circuits imprimés rigides ou structures similaires se raccordant à d'autres circuits imprimés rigides ou à des structures similaires
G01R 31/28 - Test de circuits électroniques, p. ex. à l'aide d'un traceur de signaux
H01R 12/71 - Dispositifs de couplage pour circuits imprimés rigides ou structures similaires
H01R 24/64 - Engagements par glissement avec une face uniquement, p. ex. dispositifs de couplage à prise modulaire pour haute fréquence, p. ex. RJ 45
4.
ADAPTIVE REGULATION SCHEMES FOR WIDE-AREA ASSET OVERLOAD PROTECTION
A protection system for managing overloads in a power transmission network may, for example, include various subsystems to monitor assets, identify overloads, and implement an adaptive regulation scheme (ARS). The ARS scheme includes a hybrid remedial action scheme with a high-speed first protection zone for immediate remedial actions to lower overloads below a transition threshold and a slower, iterative second protection zone that applies remedial actions based on a response-time overload curve to reduce overloads below an operational threshold. The system dynamically prioritizes remedial actions based on real-time conditions and asset dependencies.
The present disclosure relates to implementing a Redundancy Box (“RedBox”) functionality in a software-defined network (“SDN”). In one embodiment, a configuration subsystem may identify at least one singly attached node (“SAN”) in the SDN and identify at least one dually attached node (“DAN”) in the SDN. The configuration subsystem may generate a first subset of a plurality of communication flows to implement RedBox functionality for communications between at least one SAN and at least one DAN
H04L 12/437 - Isolement de la défaillance de l'anneau ou reconfiguration
H04L 41/122 - Découverte ou gestion des topologies de réseau des topologies virtualisées, p. ex. les réseaux définis par logiciel [SDN] ou la virtualisation de la fonction réseau [NFV]
6.
DETECTION OR PREVENTION OF ELECTRICAL SECONDARY ARC IN AN ELECTRIC POWER DELIVERY SYSTEM
Systems, methods, and devices for detecting an electrical secondary arc across a transition point in an electric power delivery system are provided. An intelligent electronic device (IED) for an electric power delivery system may include data processing circuitry and machine-readable media including instructions that, when executed by the data processing circuitry, cause the IED to perform operations several operations. The operations may include comparing a first electrical measurement across a transition point in the electric power delivery system measured at a first time with a second electrical measurement across the transition point measured at a second time; and identifying an occurrence of an electrical secondary arc across the transition point when the second electrical measurement at the second time is greater than the first electrical measurement at the first time by more than a threshold.
H02H 3/16 - 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 un courant de défaut à la terre ou à la masse
G01R 19/10 - Mesure d'une somme, d'une différence, ou d'un rapport
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
H02H 1/00 - Détails de circuits de protection de sécurité
7.
QUOTIENT DIFFERENTIAL PROTECTION FOR ELECTRIC POWER DELIVERY SYSTEMS
Quotient differential protection of electric power delivery system equipment is described herein. Load-side currents and source-side currents are used without need of tap changer and control switch positions of the dual-core phase-shifting transformer being protected. The quotient differential signal is determined based on comparing the winding turn ratios in individual transformer phases, resulting in a differential signal that includes the products of currents. Similarly, the restraining signal comprises the products of currents.
The present disclosure relates to improving the monitoring of electric power systems. In one embodiment, a device consistent with the present disclosure may include an input for receiving information related to electric parameters at a location within the electric power system. A power supply in electrical communication with an external power source may provide conditioned electric power to components internal to the device. The power supply may include a power input in electrical communication with the external power source to receive electric power. A conditioning circuit may condition electric power from the external power source for use by the device. An energy storage device may store electric power from the external power source. An energy storage device control subsystem may draw power from the energy storage device upon loss of the external power source to enable the device to remain fully operational and to implement an action.
A protective intelligent electronic device (IED), such as a protective relay, includes a processor to execute protection routines and/or data acquisition routines. The protective IED or an associated networking device may include, for example, a measurement module to monitor processor burden and control logic to detect Ethernet storms based on a dynamic burden function threshold. In response to storm detection, non-critical Ethernet traffic is throttled while critical protection functions are maintained. Auxiliary communication subsystems and/or critical protocols such as RSTP may continue to function during a storm mitigation mode. The systems and methods described herein leverage dynamic CPU burden assessments, traffic prioritization, and hysteresis logic to limit toggling between storm mitigation and normal operation modes.
Fault location determination using local and remote incremental voltages and replica currents is disclosed herein. Using the observation that the change in voltage at the fault location estimated from a local terminal is the same as the change in voltage at the fault location estimated from a remote terminal, the embodiments herein determine fault location by minimizing a difference between a change-in-voltage at the fault location estimated using the local incremental voltages and replica currents and a change-in-voltage at the fault location estimated using the remote incremental voltages and replica currents.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
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
11.
ADAPTIVE CLOCK OFFSET ESTIMATION FOR PROTECTION DEVICES WITHOUT TIME-BASED SYNCHRONIZATION
The present disclosure relates to systems and methods for protecting electric power equipment. In one embodiment, an oscillator generates a time signal to timestamp a first stream of data comprising a plurality of local measurements. A communications interface may receive a second stream of data comprising a plurality of remote measurements from a remote source through a communication channel. The second stream of data may include a plurality of timestamps. A clock offset estimation subsystem may determine a plurality of clock offset values based on the second stream of data, analyze the second stream of data; identify a plurality of valid raw clock offset values within the second stream of data; and generate a prediction error. An adaptive filter subsystem may determine an adaptive gain using an adaptive filter and apply the adaptive gain to the prediction error based on conditions of the communication channel.
A system includes a first intelligent electronic device (IED) of an electric power delivery system. The first IED may measure a local current and a local voltage, transmit a first signal indicative of the local current and voltage measurements to additional IEDs via one or more communication channels, receive one or more additional signals indicative of remote current and voltage measurements from each of the additional IEDs, determine a respective asymmetry of each of the communication channels based on the local current and voltage measurements and the remote current and voltage measurements, determine a total asymmetry based on the respective asymmetries, compare the total asymmetry to one or more threshold relationships between operating currents and restraining currents, each of the one or more threshold relationships comprising a slope value, and perform a control function based on the comparison.
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 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
13.
LATENCY MEASUREMENT FOR HIGH-AVAILABILITY SEAMLESS REDUNDANCY (HSR) RINGS
In various examples, a host HSR device determines bidirectional latency values in an HSR ring without adding network traffic beyond the supervision frames mandated by the HSR protocol. The host HSR device receives its own supervision frames after the frames traverse the ring in both clockwise and counterclockwise directions. The host HSR device determines direction-specific roundtrip latency values, which are transmitted and used to, for example, set channel delay parameters in protective relays, assert alarms when latency or frame-return timeout thresholds are exceeded, and/or take other protective or reporting actions. In some examples, the larger of the two latency values is used to calculate a maximum roundtrip latency, which can be used to adjust or set a channel delay setting of a protective relay to ensure that the protective relay will continue to operate with the ring in a degraded state.
This disclosure pertains to systems and methods to detect network errors in a parallel redundant protocol (PRP) or high-availability seamless redundancy (HSR) network. A node-level redundancy error subsystem of an intelligent electronic device (IED) maintains records (e.g., counts) of information associated with missing duplicate frames expected from node devices on the PRP or HSR network via redundant first and second local area networks (LANs). Non-zero counts of missing duplicate frames may be identified as network errors.
H04L 41/0668 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant la reprise sur incident de réseau par sélection dynamique des éléments du réseau de récupération, p. ex. le remplacement par l’élément le plus approprié après une défaillance
H04L 45/00 - Routage ou recherche de routes de paquets dans les réseaux de commutation de données
15.
PRIORITY DISPATCH REGIONS FOR COORDINATION OF CONTROL OBJECTIVES IN ELECTRICAL POWER SYSTEM
Systems and methods for controlling dispatchable elements of a microgrid, such as generators or a point of common coupling, to achieve control objectives of the microgrid are provided. A monitoring and control system may determine a set of prioritized control objectives corresponding to a number of dispatchable elements of a microgrid and a combined dispatch region for the microgrid based on the prioritized control objectives. The monitoring and control system may control the plurality of dispatchable elements based on the combined dispatch region.
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
Systems and methods for controlling dispatchable elements of a microgrid, such as generators or a point of common coupling, to achieve control objectives of the microgrid are provided. A monitoring and control system may determine a set of prioritized control objectives corresponding to a number of dispatchable elements of a microgrid and a combined dispatch region for the microgrid based on the prioritized control objectives. The monitoring and control system may control the plurality of dispatchable elements based on the combined dispatch region.
The present application discloses a current monitor mountable to an energized electrical conductor in an electric power system and related methods. In one embodiment, a current monitor comprises a housing, a first moveable arm coupled to the housing, and a second moveable arm coupled to the housing. The first moveable arm and the second moveable arm are configurable in an open configuration and a closed configuration. A current sensor is disposed in the moveable first arm and the second moveable arm and generates a signal output representing a current flow in the energized electrical conductor. The first moveable arm and the second moveable arm form a channel to receive the electrical conductor in the open configuration and transition to a closed configuration in which the first moveable arm and the second moveable arm substantially surround the electrical conductor in response to the electrical conductor entering the channel.
G01R 15/18 - 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 inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 31/58 - Test de lignes, de câbles ou de conducteurs
18.
HIGH-SPEED HIGH-SENSITIVITY TRANSFORMER DIFFERENTIAL PROTECTION USING ENHANCED RESTRAINING TECHNIQUES
Transformer differential protection notwithstanding magnetizing inrush and overexcitation conditions is disclosed herein. Differential protection uses differential and restraining signals calculated using compensated winding currents. The protection is effective during magnetizing inrush and overexcitation conditions by determining whether the differential current is due to the magnetizing inrush or overexcitation. Further, the protection may determine a fault condition during energization.
Transformer differential protection notwithstanding magnetizing inrush and overexcitation conditions is disclosed herein. Differential protection uses differential and restraining signals calculated using compensated winding currents. The protection is effective during magnetizing inrush and overexcitation conditions by determining whether the differential current is due to the magnetizing inrush or overexcitation. Further, the protection may determine a fault condition during energization.
A method to determine a location of a fault in a power network includes monitoring electrical measurements, receiving an indication of a presence of the fault; determining a first sequence mutual coupling parameter based on the electrical measurements, wherein the first sequence mutual coupling parameter indicates a mutual coupling of a positive sequence to a negative sequence of the power network, determining a second sequence mutual coupling parameter based on the electrical measurements, wherein the second sequence mutual coupling parameter indicates a mutual coupling of a zero sequence to the negative sequence of the power network, determining the location of the fault based on the indication of the presence of the fault, the first sequence mutual coupling parameter, and the second sequence mutual coupling parameter, and sending one or more commands to one or more devices to adjust one or more operations based on the location of the fault.
H02H 7/00 - 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
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
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
21.
MULTI-ENDED IMPEDANCE-BASED FAULT LOCATING FOR UNTRANSPOSED TRANSMISSION LINES
A method to determine a location of a fault in a power network includes monitoring electrical measurements, receiving an indication of a presence of the fault; determining a first sequence mutual coupling parameter based on the electrical measurements, wherein the first sequence mutual coupling parameter indicates a mutual coupling of a positive sequence to a negative sequence of the power network, determining a second sequence mutual coupling parameter based on the electrical measurements, wherein the second sequence mutual coupling parameter indicates a mutual coupling of a zero sequence to the negative sequence of the power network, determining the location of the fault based on the indication of the presence of the fault, the first sequence mutual coupling parameter, and the second sequence mutual coupling parameter, and sending one or more commands to one or more devices to adjust one or more operations based on the location of the fault.
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
H02H 3/38 - 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 la fois à la tension et au courantCircuits 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 l'angle de déphasage entre tension et courant
H02H 5/10 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions non électriques normales de travail avec ou sans reconnexion sensibles à une détérioration mécanique, p. ex. rupture de ligne, rupture de connexion de terre
Systems and methods for determining primary and failover paths in a programmable communication network are disclosed herein. In one embodiment, a system to identify a plurality of communication paths may operate in conjunction with a programmable communication network connecting a source and a destination. A path discovery subsystem may discover both a first and a second completed communication path between the source and the destination. A cost calculation subsystem may calculate a first cost for the first completed communication path and a second cost for the second completed communication path. A routing subsystem may identify a primary communication path based on the first cost and the second cost, and program the plurality of nodes to implement the primary communication path.
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Electronic apparatus, namely, electronic controllers, and computer hardware, all for monitoring, protection, control, and automation of electric power systems; electric power systems comprising computer hardware for monitoring, protection, control, and automation of electric power systems; computer systems comprised of computer hardware to control and automate integration of electric power generation sources; computer systems comprised of computer hardware to control and automate microgrids Design, engineering, and engineering commissioning of electric power control and automation systems; design, engineering, and engineering commissioning of electronic power system transmission and distribution units; design, engineering and engineering commissioning of power distribution and transmission system control, protection, automation and monitoring systems; engineering services in the field of protection, control, monitoring, and automation of electric power systems; design, engineering, and engineering commissioning of electric power microgrid control and automation systems; design, engineering, and engineering commissioning of systems to control and automate integration of electric power generation sources
A soldering system includes a first solder wave height sensor to generate a first sensor signal and a second solder wave height sensor to generate a second sensor signal. The system further includes control circuitry to control an operation of the soldering system based on the first sensor signal and the second sensor signal.
G01B 7/02 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur
A current interruption system may include an electromechanical switch coupling an electrical source and an electrical load along an electrical line of a power delivery system. The current interruption system may also include a controller that may receive an indication of an electrical characteristic along the electrical line, determine a fault condition based on the electrical characteristic, and transmit instructions to interrupt a first current through the electromechanical switch according to a first mode or second mode based on the electrical characteristic and the determination of the fault condition. Additionally, the current interruption system may include a voltage source converter (VSC) that may receive the instructions from the controller, interrupt the first current according to the first mode or the second mode, and reduce a second current through the VSC to zero.
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
H02H 1/00 - Détails de circuits de protection de sécurité
H02H 3/44 - 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 aux taux de variation de quantités électriques
26.
OPEN-PHASE FAULT AND SECONDARY ARC EXTINCTION DETECTION IN ELECTRIC POWER SYSTEMS
Systems, methods, and devices presented herein are directed toward detecting a secondary arc extinction (SAE). SAE detection circuitry may identify the presence of arcing and bolted faults that persist through the end of a dead time (e.g., a predetermined time period between detection of a secondary arc and auto-reclosing). The SAE detection circuitry may detect the extinction of secondary arcing prior to the dead time expiring and provide output signals that may enable reclosing prior to the expiration of the dead time when secondary arc extinction is detected or to block reclosing when the secondary arc is still present at the end of the dead time. Further, the SAE detection circuitry may be implemented for transposed, untransposed, compensated, and uncompensated lines.
H02H 1/00 - Détails de circuits de protection de sécurité
H02H 3/06 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec reconnexion automatique
H02H 3/13 - 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 un manque de charge ou à une charge nulle pour des systèmes polyphasés, p. ex. en cas de coupure d'une phase
27.
Voltage regulator control in electric power systems with distributed generation
The present disclosure relates to control of a voltage regulator in an electric power system. In one embodiment, a system to control a voltage regulator includes a communication interface configured to communicate with the voltage regulator. A power flow direction subsystem may determine a direction of a current flow in the electric power system. A tap change monitoring subsystem may monitor tap changes implemented by the voltage regulator to evaluate a voltage change resulting from each of the plurality of tap changes and determine a source stiffness value for a first source and a second source. A voltage regulator control subsystem is configured to determine a regulation direction based on the direction of current flow determined by the power flow direction subsystem and based on the source stiffness value for the first source and the second source, and communicate the regulation direction to the voltage regulator through the communication interface.
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
G05F 1/14 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type alternatif utilisant des transformateurs à prises ou des inductances à changement de prises comme dispositifs de réglage final
H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
28.
LIMITING DISTANCE ELEMENTS OVERREACH FOR INCOMING POWER FLOW
Distance protection for electric power delivery systems using distance elements with characteristics that prevent distance element overreach. The distance protection systems and methods herein may be used in systems that experience incoming power flow with enhanced security. Improved mho and quadrilateral elements are described that may have observation windows longer or shorter than half a cycle of transmission line signals. Such mho and quadrilateral elements may determine fault conditions, such as resistive faults, with improved reliability and efficiency.
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
H02H 1/00 - Détails de circuits de protection de sécurité
29.
INTEGRATED ADDRESS MANAGEMENT OF SOFTWARE DEFINED NETWORKS
The present disclosure pertains to systems and methods for monitoring and configuring a software-defined network (SDN). A system may include a communication interface to communicate a plurality of communication flows to a plurality of network devices in the SDN and to receive information from the plurality of network devices related to traffic in the SDN between a plurality of hosts. A configuration subsystem may generate the plurality of communication flows based on a planned configuration. A monitoring subsystem may monitor information from the plurality of network devices related to traffic in the SDN to identify a change to at least one aspect of the planned configuration. An operator-interface subsystem to generate an alert regarding the change. The configuration subsystem may implement an update to the planned configuration based on the change.
H04L 41/082 - Réglages de configuration caractérisés par les conditions déclenchant un changement de paramètres la condition étant des mises à jour ou des mises à niveau des fonctionnalités réseau
H04L 41/08 - Gestion de la configuration des réseaux ou des éléments de réseau
30.
SYSTEMS AND METHODS FOR ESTABLISHING A SECURE COMMUNICATION LINK IN AN ELECTRIC POWER DISTRIBUTION SYSTEM
An intelligent electronic device (IED) of an electric power distribution system includes processing circuitry and a memory that includes instructions. The instructions, when executed by the processing circuitry, are configured to cause the processing circuitry to transmit a first data frame and a second data frame to a switch of the electric power distribution system, determine whether the switch transmits the first data frame and not the second data frame, and establish a media access control security key agreement (MKA) based on a determination of whether the switch transmits the first frame and not the second data frame.
A system for detecting single-phase ground faults is presented herein. Single-phase ground faults on ungrounded or high-impedance single-grounded three-wire power systems are determined by filtering the currents and voltages components to remove noise, extracting the pure-fault current components, and computing their magnitude. The faulted feeder is determined as the one with the largest zero-sequence pure-fault current. of each phase, and filtering the pure-fault current components to remove noise. The faulted phase is determined as the phase with the largest pure-fault current magnitude compared with the other two phases. The detection may be qualified using the fault zero-sequence voltage magnitude.
G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre
H02H 1/00 - Détails de circuits de protection de sécurité
H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
32.
SINGLE-END TRAVELING WAVE FAULT LOCATION ESTIMATION AND RESULTS ORDERED USING A LOCAL OR REMOTE TERMINAL AS REFERENCE
Systems and methods for determining a location of a fault in a power delivery system are provided. Such a method may include receiving several single-end traveling wave fault location values and a single-end impedance fault location value based on measurements from a first intelligent electronic device at a local terminal. Based on a relationship between the single-end traveling wave fault location values, the single-end impedance fault location value, a location of the local terminal, and the location of the remote terminal, one of the several single-end traveling wave fault location values may be selected as a fault location value of highest confidence among the several single-end traveling wave fault location values.
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
33.
Testing system for distributed power delivery protection or control system
A system comprises a first intelligent electronic device (IED) configured to receive simulated electric power delivery system measurements and test configuration settings from a computing device, transmit a signal indicative of instructions to pause normal operation to a plurality of additional IEDs, transmit a signal comprising the simulated electric power delivery system measurements and the test configuration settings to each of the plurality of additional IEDs, transmit a signal indicative of instructions to begin a test procedure according to the simulated electric power delivery system measurements and the test configuration settings to each of the plurality of additional IEDs, receive a signal indicative of test results from each of the plurality of additional IEDs, and transmit a signal indicative of instructions to resume normal operation to the plurality of additional IEDs.
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
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
H02H 1/00 - Détails de circuits de protection de sécurité
34.
PROTECTION THROUGH A POWER TRANSFORMER USING COMPENSATED VOLTAGES AND CURRENTS
A distance protection element for fault coverage through a transformer that introduces a break in the zero-sequence equivalent network is disclosed herein. Voltage and current signals from a delta (low) side of the transformer are obtained and compensated using wye (high) side neutral current and nominal values. The compensated voltage and current signals are used in a distance protection element to detect faults on the wye (high) side of the transformer. The distance protection element may be implemented in a generator protection device as backup distance protection.
H01H 83/18 - Interrupteurs de protection, p. ex. disjoncteur ou relais de protection actionné par des conditions électriques anormales autres que seulement les courants excessifs actionnés par un produit anormal du courant par la tension ou un angle de phases anormal entre courant et tension, p. ex. un relais directionnel
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
09 - Appareils et instruments scientifiques et électriques
14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
37 - Services de construction; extraction minière; installation et réparation
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Computer hardware and software for receiving and transmitting communications and interfacing with other electronic modules; input modules, namely, computer hardware and software for receiving digital input signals and interfacing with an electronic controller; output modules, namely, computer hardware and software for transmitting digital output signals and interfacing with an electronic controller; programmable logic controller; Telecommunications hardware for use in networks; multiplexers; telecommunications switches; Ethernet switches; Ethernet repeaters; Ethernet transceivers; fiber optic transceivers; fiber optic multiplexers; fiber optic switches; optical telecommunications instruments, namely, transmitters, receivers, converters, switches, and multiplexers; electronic telecommunications instruments, namely, transmitters, receivers, converters, switches, and multiplexers; communications cables; fiber optic cables; Electronic apparatus for providing secure communications; network routers; computer network hardware, namely, servers, computer networking hardware; computer network switches; Computers; computer hardware; communications computers; computer hardware for use in harsh environments; computer hardware for use in industrial and utility environments; Enclosures for electrical power distribution units; electric control panels; Electrical circuit condition monitoring devices, namely, electrical current fault indicators and voltage indicators; Electronic apparatus for detecting high-impedance electrical faults; electronic apparatus for arc-flash detection; Computer antivirus software; computer hardware and software for computer, Internet, communication, and network security; internet security software; firewall software; privacy control software; computer software for the detection and removal of unwanted software; computer utility software; computer whitelisting software for protecting the integrity of computers, computer networks, computer systems, and computer hardware; Electronic decryption units; electronic encryption units; Computer software for operating and managing secure computer systems; computer software for recovery of data and information in secure computer systems; computer software for use in monitoring computer systems, namely, remote and local monitoring of operating systems; Computer software for use in viewing, analyzing and archiving data in power generation, transmission, distribution, and consumption; Computer software used with electronic apparatus for monitoring, controlling, protecting, integrating and automating electric power utility and industrial equipment; Graphical user interface software; computer software for monitoring and setup of clocks that use global navigation system satellite signals; electronic instruments for time measuring; electronic instruments for time signal distribution; electronic and computer instruments for determining precise time; computer hardware for generation and distribution of digital time signals; Electric rotary switches; circuit breaker switches; lockout switches, namely, safety lockout switches, electric lockout switches; selector switches, namely, rotary selector switches; Systems comprising computer hardware for monitoring, protection, control, and automation of electric power systems. Clocks. Installation of enclosures for electric systems; installation of electric systems. Education services, namely, providing courses in the form of computer-based training; education services, namely, providing courses of instruction at the continuing education level in the field of engineering, electrical engineering, electrical power systems, and computer science; education services, namely, providing courses of instruction in the field of engineering. Design, engineering, and engineering commissioning of electric systems, namely, electronic power system transmission and distribution units for use in protection, control, automation, and monitoring of electric power systems for industrial and utility companies; design, engineering, and engineering commissioning of electronic power system transmission and distribution units; design, engineering, and engineering commissioning of enclosures for electric systems; design, engineering and engineering commissioning of power distribution or transmission system control, protection, and monitoring systems; Engineering services in the field of protection, control, monitoring, and automation of electric power systems.
09 - Appareils et instruments scientifiques et électriques
14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
41 - Éducation, divertissements, activités sportives et culturelles
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Computer hardware and software for receiving and transmitting communications and interfacing with other electronic modules; input modules, namely, computer hardware and software for receiving digital input signals and interfacing with an electronic controller; output modules, namely, computer hardware and software for transmitting digital output signals and interfacing with an electronic controller; programmable logic controller; Telecommunications hardware for use in networks; multiplexers; telecommunications switches; Ethernet switches; Ethernet repeaters; Ethernet transceivers; fiber optic transceivers; fiber optic multiplexers; fiber optic switches; optical telecommunications instruments, namely, transmitters, receivers, converters, switches, and multiplexers; electronic telecommunications instruments, namely, transmitters, receivers, converters, switches, and multiplexers; communications cables; fiber optic cables; Electronic apparatus for providing secure communications; network routers; computer network hardware, namely, servers, computer networking hardware; computer network switches; Computers; computer hardware; communications computers; computer hardware for use in harsh environments; computer hardware for use in industrial and utility environments; Electrical circuit condition monitoring devices, namely, electrical current fault indicators and voltage indicators; Electronic apparatus for detecting high-impedance electrical faults; electronic apparatus for arc-flash detection; Computer antivirus software; computer hardware and software for computer, Internet, communication, and network security; internet security software; firewall software; privacy control software; computer software for the detection and removal of unwanted software; computer utility software; computer whitelisting software for protecting the integrity of computers, computer networks, computer systems, and computer hardware; Electronic decryption units; electronic encryption units; Computer software for operating and managing secure computer systems; computer software for recovery of data and information in secure computer systems; computer software for use in monitoring computer systems, namely, remote and local monitoring of operating systems; Computer software for use in viewing, analyzing and archiving data in power generation, transmission, distribution, and consumption; Computer software used with electronic apparatus for monitoring, controlling, protecting, integrating and automating electric power utility and industrial equipment; Graphical user interface software; comptuer software for monitoring and setup of clocks that use global navigation system satellite signals; Electronic instruments for time measuring; electronic instruments for time signal distribution; electronic and computer instruments for determining precise time; computer hardware for generation and distribution of digital time signals; Systems comprising computer hardware for monitoring, protection, control, and automation of electric power systems. Clocks. Education services, namely, providing courses in the form of computer-based training; education services, namely, providing courses of instruction at the continuing education level in the field of engineering, electrical engineering, electrical power systems, and computer science; education services, namely, providing courses of instruction in the field of engineering. Design, engineering, and engineering commissioning of electric systems, namely, electronic power system transmission and distribution units for use in protection, control, automation, and monitoring of electric power systems for industrial and utility companies; design, engineering, and engineering commissioning of electronic power system transmission and distribution units; design, engineering, or engineering commissioning of power distribution or transmission system control, protection, and monitoring systems; Engineering services in the field of protection, control, monitoring, and automation of electric power systems.
37.
Adaptive clock offset estimation for protection devices without time-based synchronization
A system for determining channel delay or communication link asymmetry in an electric power system. The delay or asymmetry uses local clock signals instead of an external time source. Prediction errors are calculated using communications among the devices. A prediction algorithm compares the predicted channel delay against a measured channel delay. When the prediction error changes abruptly, the channel delay or communication asymmetry is detected.
Systems and methods to validating a firmware update of an intelligent electronic device (IED) of an electric power delivery system are provided. A system may include a computing device that communicatively couples to an intelligent electronic device (IED) of an electric power delivery system. The computing device may transmit a signal indicative of instructions to pause normal intelligent electronic device (IED) operation and apply a firmware update and transmit a signal including simulated power delivery system measurements to the intelligent electronic device (IED). The computing device may receive a signal indicative of test results from the intelligent electronic device (IED) and determine validation of the firmware update based on the test results.
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
39.
SETTINGS OR FIRMWARE VALIDATION FOR POWER DELIVERY SYSTEM USING POWER DELIVERY SYSTEM VALUES BEFORE AND AFTER SETTINGS OR FIRMWARE CHANGE
Systems and methods to validating a settings file or firmware update of an intelligent electronic device (IED) of an electric power delivery system are provided. A system may include a computing device that communicatively couples to an intelligent electronic device (IED) of an electric power delivery system. The computing device may receive a first signal indicative of first measurements including first internal logic results from the intelligent electronic device (IED), transmit a second signal indicative of instructions to pause normal intelligent electronic device (IED) operation and apply a settings file or firmware update, and receive a third signal indicative of second measurements including second internal logic results from the intelligent electronic device (IED). The computing device may then determine validation of the settings file or firmware update based on the first measurements and the second measurements.
A multiport current sensor is disclosed for measuring current. The sensor may include multiple CT or Rogowski coil segments or sections arranged in a closed loop configuration around a monitored phase line or other electrical conductor. An adjacent phase rejection circuit compares the magnitudes and/or phase angles of the voltage signals from the multiple coil segments. The adjacent phase rejection circuit may detect if a fault in an adjacent phase line or other electrical conductor is affecting the output signal of the current sensor by more than a threshold amount. The adjacent phase rejection circuit may additionally or alternatively indicate whether the measured values are valid for detecting a fault on the monitored phase line or other electrical conductor.
G01R 15/18 - 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 inductifs, p. ex. des transformateurs
G01R 19/15 - Indication de l'existence d'un courant
G01R 19/155 - Indication de l'existence d'une tension
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
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
A multiport current sensor is disclosed for measuring current. The sensor may include multiple CT or Rogowski coil segments or sections arranged in a closed loop configuration around a monitored phase line or other electrical conductor. An adjacent phase rejection circuit compares the magnitudes and/or phase angles of the voltage signals from the multiple coil segments. The adjacent phase rejection circuit may detect if a fault in an adjacent phase line or other electrical conductor is affecting the output signal of the current sensor by more than a threshold amount. The adjacent phase rejection circuit may additionally or alternatively indicate whether the measured values are valid for detecting a fault on the monitored phase line or other electrical conductor.
G01R 15/18 - 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 inductifs, p. ex. des transformateurs
G01R 19/15 - Indication de l'existence d'un courant
G01R 19/155 - Indication de l'existence d'une tension
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
The present disclosure relates to systems and methods to detect a fault in an electric power system. One embodiment may detect a single phase broken conductor in a multi-phase electric power system. An intelligent electronic device (IED) may receive a plurality of measurements over time of a current through an electrical conductor in the electric power system. Based on the measurements of the current, a fault detection subsystem may determine a zero-sequence current, a negative-sequence current, and a positive-sequence current. The fault detection subsystem may determine a ratio of the zero-sequence current, the negative-sequence current, and the positive-sequence current, and may monitor the ratio over time. The fault detection subsystem may identify the broken conductor condition based on the ratio and a fault detection region. A protective action subsystem may implement a protective action based on identification of the broken conductor condition.
H02H 7/00 - 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
H02H 1/00 - Détails de circuits de protection de sécurité
H02H 6/00 - Circuits de protection de sécurité sensibles à des changements indésirables des conditions non électriques normales de travail et utilisant des dispositifs simulateurs de l'appareil protégé, p. ex. utilisant des images thermiques
The presently described systems and methods include differential protection architectures for power lines, including three-phase transmission lines and distribution lines, in which each protective device monitors and protects more than one power line. A protective device with multi-channel line current differential protection provides additional security from data corruption and/or single event upsets. A protective device on one end of a transmission line may include multiple communication channels to simultaneously receive independent differential data (e.g., current measurements) from protective devices on the other end of the transmission line. The device may use the independent channels of line current differential protection data to implement multiple independent differential protection functions for two or more power line segments.
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 1/00 - Détails de circuits de protection de sécurité
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
The present application relates to generating adaptive protective relay event reports. In one embodiment, a system comprises a power system response subsystem to monitor electrical parameters in an electric power system and to receive a trigger signal from a trigger source based on identification of an event in an electric power system. An adaptive event report subsystem is configured to generate an adaptive report depending on the trigger related to the event and based on a pre-trigger start, a duration, and a sampling rate. The adaptive event report comprises at least one electrical parameter related to the event beginning at a time established by the pre-trigger start, covering an interval established by the duration, and recorded at the sampling rate.
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
H02H 1/00 - Détails de circuits de protection de sécurité
46.
SYSTEMS AND METHODS FOR POWER DELIVERY SYSTEM TOPOLOGY-BASED INTERLOCKING
An electric power system may include numerous devices electrically connected to numerous other devices. In some cases, it may be beneficial to quickly determine and resolve an electric power system topology. Using a protection and control (PAC) algorithm, an electric power delivery system may be identified and represented as a graph including nodes and edges. The nodes represent electric power sources, busses, and ground. The edges represent circuit breakers, disconnects switches, and ground switches. By representing the electric power delivery system as a graph, the connections between various nodes (e.g., power sources, busses, grounds) and edges (e.g., circuit breakers, disconnects, ground switches) may be quickly and easily realized, represented, and visualized. Doing so may reduce programming and testing time after a change to the topology.
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
This disclosure pertains to systems and methods to detect network errors in a parallel redundant protocol (PRP) network. A node-level redundancy error subsystem of an intelligent electronic device (IED) maintains records (e.g., counts) of information associated with missing duplicate frames expected from node devices on the PRP network via redundant first and second local area networks (LANs). Non-zero counts of missing duplicate frames may be identified as network errors.
H04L 1/22 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue en utilisant un appareil en excédent pour accroître la fiabilité
H04L 1/1867 - Dispositions spécialement adaptées au point d’émission
H04L 41/0604 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant du filtrage, p. ex. la réduction de l’information en utilisant la priorité, les types d’éléments, la position ou le temps
48.
Voltage selection control scheme for synchronism check in digital substations
A system for voltage signal distribution in a digital substation protection system. In a system where a voltage signal from a bus is not available, an alternative voltage secondary signal may be selected as a reference voltage and made available to the appropriate protection devices in a digital substation protection system for synchronism check. Voltage signals may be distributed using software-defined networking. A voltage selection controller may select the reference voltage and control distribution of the voltage signal using the software-defined networking communication system.
H02H 7/00 - 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
H02H 3/05 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion Détails avec des moyens pour accroître la fiabilité, p. ex. dispositifs redondants
H02H 7/26 - Protection sectionnelle de systèmes de câbles ou de lignes, p. ex. pour déconnecter une section dans laquelle un court-circuit, un défaut à la terre, ou une décharge d'arc se sont produits
A method of manufacture includes applying an identification pattern over a printed circuit board (PCB), capturing an image of the identification pattern applied to the PCB, associating the image with an additional identification pattern associated with the PCB, and storing the image and the association between the image and the additional identification pattern in a database.
G06Q 30/018 - Certification d’entreprises ou de produits
G06F 16/583 - Recherche caractérisée par l’utilisation de métadonnées, p. ex. de métadonnées ne provenant pas du contenu ou de métadonnées générées manuellement utilisant des métadonnées provenant automatiquement du contenu
An electric power system may include numerous devices electrically connected to numerous other devices. In some cases, it may be beneficial to quickly determine and resolve an electric power system topology. The present disclosure is directed to systems and methods for resolving an electric power system topology using bit pattern sequence compression. A multi-node device may be electrically coupled to one node per side. Each node may be associated with a bit value. The bit values may be compared to determine if the nodes are electrically coupled. This process may be recursively performed for all of the multi-node devices, until it is determined which devices are electrically coupled and which are electrically isolated.
Systems, methods, and devices for protecting against spoofing of Global Navigation Satellite System (GNSS) data are provided. An electronic device may include memory and one or more processors that execute instructions to cause operations to identify potential GNSS spoofing. The operations may include obtaining a first distance between a first GNSS receiver and a second GNSS receiver, obtaining first GNSS data indicating a first range measurement between a first GNSS satellite and the first GNSS receiver, obtaining second GNSS data indicating a second range measurement between the first GNSS satellite and the second GNSS receiver, and calculating a first expected range measurement between the second GNSS receiver and the first GNSS satellite based at least in part on the first distance and the first range measurement. Spoofing may be determined to have occurred based on a comparison between the first expected range measurement and the second range measurement.
A current transformer (CT) isolation clamp is mounted to a phase conductor and includes a step-down CT transformer and a passive isolation transformer. A three-phase power-harvesting sensor system includes a plurality of CT isolation clamps mounted to phase conductors in a three-phase power system. An electronics module is connected to the CT isolation clamps. The electronics module may include a sensing circuit to determine power characteristics of the three-phase power system based on the outputs of the CT isolation clamps. The electronics module may include a communication subsystem to transmit the determined power characteristics to local or remote devices. Additionally, the electronics module may include a power harvesting circuit to harvest power to operate the sensing circuit and the communication subsystem.
A method and a system are used to monitor electrical measurements of a power system during a period of time. The system calculates and analyzes incremental quantities based on the electrical measurements of the power system. The incremental quantities are used to identify a conductor breaking fault in the power system. Instructions are sent out to activate certain actions (e.g., protective actions) based on the identified fault and the type of fault. The system operates continuously to provide real-time monitoring and fault identification.
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
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
A system for monitoring a voltage of a conductor of an electric power delivery system after automatic voltage sensor calibration. The system includes a sensor for capacitive coupling with an access point. The system includes an IED in electrical communication with the sensor to obtain signals therefrom. The IED may be configured to automatically calibrate to accommodate the signals from the conductor obtained using the sensor. The IED may provide an output depending on the determined voltage on the conductor.
G01R 35/00 - Test ou étalonnage des appareils couverts par les autres groupes de la présente sous-classe
G01R 15/16 - 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 capacitifs
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
A system for high-impedance differential protection for power systems using a variety of signals from the power system. A fault may be detected using filtered phase current or filtered phase voltage magnitudes from current transformers (CTs) connected in parallel by phase. A fault may be detected using filtered phase voltages and raw phase voltages from the CTs. A fault may be detected using raw phase currents and raw phase voltages from the CTs. A fault may be detected using filtered phase currents and raw phase currents. A fault may be detected using raw phase currents and raw neutral currents. The embodiments herein maintain dependability and security of a differential element even when low-class CTs are used. The embodiments herein may allow users to optimize pickup settings even when low-class CTs are used.
H02H 7/045 - Protection différentielle de transformateurs
H02H 1/00 - Détails de circuits de protection de sécurité
H02H 7/04 - 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 transformateurs
59.
Scalable electric power controls system using stateless services
Computational algorithms or “solvers” may be executed on intelligent electronic devices (IEDs) in an electric power delivery system to perform tasks such as locating and isolating electrical faults and restoring service to an area after an electrical fault occurs. However, executing the solvers may become a computationally prohibitive task, particularly where computing power is limited (e.g., low-power pole-top computers). In certain embodiments, computing power may be offloaded onto multi-instance networks that may enable processing of large amounts of complex data. It may be difficult for the multi-instance networks to obtain real-time or near real-time data from the electric power delivery system due to cybersecurity concerns. As such, multiple stateless services may be used to evaluate limited and/or obfuscated representations of a portion (e.g., a single feeder circuit) of the electric power delivery system.
H04L 41/0659 - Gestion des fautes, des événements, des alarmes ou des notifications en utilisant la reprise sur incident de réseau en isolant ou en reconfigurant les entités défectueuses
A distributed control system based on numerous models of small-scale subsystems within power delivery and/or distribution systems may increase the performance of solvers, automation algorithms, and control systems. By implementing multiple discrete control system models and effectuating simple communications (e.g., requests and responses for additional electric power) between the multiple discrete control system models, the processing power and time associated with modeling the power system and responding to events occurring within the power system may be reduced, and greater flexibility and modularity may be provided to the power delivery and distribution systems.
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
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
H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
A satellite-synchronized network clock may include an oscillator, a global navigation satellite system (GNSS) time receiver module, and a control subsystem. The GNSS time receiver module may include a time receiver, a multiplexer, and a plurality of source inputs. The control subsystem may configure the multiplexer and time receiver of the GNSS time receiver module to sequentially receive time signals from a plurality of GNSS satellite constellations. Methods of synchronizing multiple time sources may include sequentially receiving a first time signal from a first GNSS constellation, a second time signal from a second GNSS constellation, and a third time signal from a third GNSS constellation with a GNSS receiver. The methods may further include measuring a phase and frequency offset of each respective received time signal relative to an oscillator and comparing the measured offsets to determine the accuracy of each of the received time signals.
A system for high impedance bus protection that includes a safety module to divert excess current away from a protective element of an intelligent electronic device. The safety module may include a variable resistor and a bypass relay in parallel across secondaries of one or more current transformers. The bypass relay may be configured to close upon detection of excess current through the secondaries to divert the excess current away from the variable resistor and the protective element.
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
H02H 3/20 - 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 un excès de tension
A fiber optic communication system may include a transmitting subsystem, a receiving subsystem, a power monitoring subsystem, a temperature monitoring subsystem, an alarm subsystem, and a data logging subsystem. The transmitting subsystem may be configured to transmit optical signals encoding data into an optical path. The receiving subsystem may be configured to receive the optical signals transmitted by the transmitting subsystem and decode the data encoded in the optical signal. The power monitoring subsystem may be configured to measure a power of the optical signal during normal operations. The temperature monitoring subsystem may monitor the temperature of the fiber optic communication system at various locations. The alarm subsystem may generate an alarm if the system operates outside of certain thresholds. The data logging subsystem may log the measured temperatures and optical signal power of the fiber optic communication system.
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
Systems may include a first data acquisition subsystem, a second data acquisition subsystem, and a traveling wave analysis subsystem. The traveling wave analysis subsystem may be configured to analyze measured traveling wave data from the first data acquisition subsystem and the second data acquisition subsystem. Additionally, methods of analyzing traveling wave data resulting from a fault on an electric power delivery system may involve analyzing measured electrical properties of at least one traveling wave.
Systems and methods include using a magnetic core winder to install a powerline-mounted device with a non-gapped magnetic core, therefore reducing the weight of the powerline-mounted device while still harvesting equal or more power than a large cross-sectional and gapped magnetic cores. In particular, the methods include installing bobbin(s) and a core housing on a powerline and winding strip/ribbon core material onto the core housing. The bobbins may be wound axially opposed to on a toroid winder, which improves the accuracy of turns count of the magnetic core. The improved accuracy of turns count may increase the accuracy and/or tolerance of magnetic component(s) of the powerline-mounted device.
A shunt resistor may, in some cases, receive interference from magnetic fields. The shunt resistor may include a resistive element coupled between multiple conductive elements, and measurement circuitry coupled to the leads, forming an electrically conductive loop. Current through the shunt resistor may be determined by measuring the current through the resistive element at the leads. An induced voltage in the loop may be determined by the product of the loop area and the magnetic field passing through the loop. Consequently, when a magnetic field is passed through the shunt resistor loop, an undesirable interfering signal may be produced, distorting the output signal of the shunt resistor. As the interfering signal is a product of the loop area and the magnetic field, the geometry of the shunt resistor may be modified to reduce the loop area and thus reduce or minimize the interference on the shunt resistor.
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 1/20 - Modifications des éléments électriques fondamentaux en vue de leur utilisation dans des appareils de mesures électriquesCombinaisons structurelles de ces éléments avec ces appareils
68.
COMMUNICATION DEVICE OPERABLE UNDER MULTIPLE CONTROL PLANES
Disclosed are systems and methods for operating a configurable communication device. Operating the configurable communication device includes operating the configurable communication device using a first network architecture control plane type. Then, an indication is received to switch at least part of the configurable communication device to using a second network architecture control plane type. In response to the indication, the configurable communication device operates the at least part of the configurable communication device in a hybrid mode utilizing both the first and second network architecture control plane types.
H04L 45/76 - Routage dans des topologies définies par logiciel, p. ex. l’acheminement entre des machines virtuelles
H04L 47/2441 - Trafic caractérisé par des attributs spécifiques, p. ex. la priorité ou QoS en s'appuyant sur la classification des flux, p. ex. en utilisant des services intégrés [IntServ]
69.
COMMUNICATION SYSTEM CONFIGURATION USING SUBSTATION CONFIGURATION LANGUAGE FILE
Disclosed are systems and methods for configuring communication of a communication network in accordance with a configuration file from the hosts that are on the network. The system may include a network controller that receives a configuration file and determines a configuration of the data plane in accordance with information in the configuration file. The network controller may generate communication flows and send instructions to programmable network devices to implement communication among data consuming/producing devices in accordance with the configuration file.
Disclosed are systems and methods for operating a configurable communication device. A network controller includes a communication interface to interface with multiple communication devices and a memory storing instructions. The network controller also includes a processor, that when executing the instructions, is configured to determine that a configurable communication device of the plurality of communication devices is to operate in a first control plane type of multiple control plane types configurable to be used by the configurable communication device. The processor is also configured to operate the configurable communication device using the first control plane type and to receive an indication that the configurable communication device is to switch to a second control plane type. Moreover, the processor is configured to cause the configurable communication device to switch to the second control plane type and operate the configurable communication device using the second control plane type.
H04L 45/64 - Routage ou recherche de routes de paquets dans les réseaux de commutation de données à l'aide d'une couche de routage superposée
H04L 45/645 - Fractionnement de la couche de calcul de la route et de la couche de routage, p. ex. pour un acheminement selon l’élément de calcul de la route [PCE] ou basé sur la fonctionnalité Openflow
Disclosed are systems and methods for configuring time synchronization in a network. The system includes a time signal source to provide a common time signal to multiple configurable communication devices and a network controller in a control plane, in communication with the multiple configurable communication devices. The network controller is configured to receive time signal source information and to receive device configuration information for a first configurable communication device. The network controller is also configured to determine settings for time signal distribution and to transmit the settings to the multiple configurable communication devices to cause the first configurable communication device to transmit the time signal from the time signal source in a data plane for consumption by the multiple configurable communication devices.
Electric power delivery system monitoring, control, and protection using a transmission of a first stream of power system information and a second stream of power system information, where the second stream is a lower-resolution cumulation of the information in the first stream is disclosed herein. The power system information may be in the form of energy packets. When a packet from the first stream is lost, the receiving device may use the second stream to calculate a value for the lost packet from the first stream. The calculated value of the lost packet may be used to correct or remediate for a protection or control operation that was previously determined.
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
Disclosed herein are systems, devices, and methods for improving cybersecurity in electric power systems. In one embodiment, a local controller configured for use in an electric power system may include a measurement subsystem to receive a plurality of conditions related to electrical conditions in a microgrid. A communication subsystem may communicate a set of data related to conditions in the microgrid to a remote controller; and receive a plurality of requests for control actions from the remote controller. An analysis subsystem may generate an assessment of the plurality of requests for control actions in relation to the plurality of conditions related to electrical conditions in the microgrid and identify a subset of the plurality of requests for control actions from the remote controller for execution based on the assessment. A control action subsystem may then issue a control action to an asset in the microgrid.
A method and a system are used to analyze incremental quantities. The electrical measurements associated with a loop in a multiple-phase electric power delivery system are obtained before a fault occurred on the loop and after the fault occurred on the loop, and differences between the electrical measurements are used to determine incremental quantities. The incremental quantities are used to determine a location of the fault on the loop. Multiple loops in the multiple-phase electric power delivery system may be monitored to determine corresponding fault locations on each loop.
Disclosed are systems and methods to determine a direction to a ground fault of an electrical generator or motor using a known steady-state standing error referenced to a positive-sequence voltage measurement to determine a system standing error and utilizing the system standing error to determine an operating current with anomalies attributable to a fault. A ground fault may be determined using zero-sequence voltage signals from the generator or motor installation. The operating current, along with the zero-sequence voltage, may be used to determine a direction to the fault. The generator or motor may be high-impedance grounded. The systems and methods further indicate the direction to a fault where multiple generators or motors are connected to a common bus.
Systems and methods may be used to assess network communications by generating one or more current communication parameters based on communications at an intelligent electronic device (IED) within an electric power delivery system. Network communications may be assessed by determining, at the IED, whether the communications fall within one or more thresholds for the current communication parameters.
H04L 43/0817 - Surveillance ou test en fonction de métriques spécifiques, p. ex. la qualité du service [QoS], la consommation d’énergie ou les paramètres environnementaux en vérifiant la disponibilité en vérifiant le fonctionnement
Various examples of systems and methods are described herein in which multiple intelligent electronic devices (IEDs) are connected in a network. A software-defined network (SDN) controller may include a rule subsystem, a test mode subsystem, a packet inspection subsystem, and a validation subsystem. The rule subsystem may define a plurality of flow rules. A test mode subsystem may operate the SDN in a testing mode. A packet insertion subsystem may insert test packets within the SDN while the SDN is in the testing mode. The validation subsystem may validate or fail each flow rule depending on how the various test packets are handled.
G06F 21/00 - Dispositions de sécurité pour protéger les calculateurs, leurs composants, les programmes ou les données contre une activité non autorisée
H04L 41/122 - Découverte ou gestion des topologies de réseau des topologies virtualisées, p. ex. les réseaux définis par logiciel [SDN] ou la virtualisation de la fonction réseau [NFV]
The present application discloses systems and methods related to protection of a reactor in an alternating current (AC) electric power system. In one embodiment, a system may include a protective action subsystem to implement a protective action based on identification of a fault condition associated with a reactor. A frequency determination subsystem may determine when a frequency of the AC voltage is outside of a range defined by a lower threshold and an upper threshold and may identify a change in the frequency associated with de-energization of a line in electrical communication with the reactor. A supervisory subsystem may restrain implementation of the protective action when the frequency is outside of the range or when the change in the frequency is associated with de-energization of the line in electrical communication with the reactor.
H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux
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
H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
H02J 3/01 - Dispositions pour réduire les harmoniques ou les ondulations
The present disclosure relates to systems and methods for calculating noise distributions in an electric power system. In one embodiment, a system to calculate a noise distribution in an electric power system may comprise a measurement subsystem to obtain a plurality of raw measurements of a parameter in the electric power system. A noise distribution determination subsystem may be configured to generate a plurality of scaled raw measurements from the plurality of raw measurements, generate a power spectrum density from the plurality of scaled raw measurements, generate a cumulative distribution from the power spectrum density, and determine a noise distribution from the power spectrum density. A protective action subsystem may monitor the parameter in the electric power system to identify a signal of interest by utilizing, at least in part, the noise distribution and generating a control action in response to the signal.
A configurable multi-sensor analog input may be utilized to connect a power system sensor to an intelligent electronic device. The configurable multi-sensor analog input may include an input port comprising a plurality of input pins and configured to receive electrical signals from one of a plurality of types of power system sensors. The configurable multi-sensor analog input may additionally include a plurality of input channels, each of the plurality of input channels coupled to a subset of the input pins, wherein the subset of input pins in electrical communication with of the plurality of types of power system sensors power system sensor is configured to selectively activate one of the plurality of input channels. A multiplexer may be in electrical communication with the plurality of input channels and configured to select an output based on the subset of input pins in electrical communication with one of the plurality of types of power system sensors.
G01R 15/18 - 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 inductifs, p. ex. des transformateurs
G06F 1/26 - Alimentation en énergie électrique, p. ex. régulation à cet effet
G06F 13/42 - Protocole de transfert pour bus, p. ex. liaisonSynchronisation
The present disclosure pertains to devices, systems, and methods for monitoring a generator. In one embodiment, the system may include a measurement subsystem to receive a plurality of split-phase measurements of branch currents associated with the at least one generator. A split-phase transverse differential monitoring subsystem may receive the plurality of split-phase measurements of branch currents associated with the at least one generator and may generate an offset value representing a standing split-phase current. A protective action subsystem may generate a first protective action based on the phasor operating current.
A table assembly is used to support a workpiece to facilitate bending of the workpiece. The table assembly is attached to a press brake system and include a base and a clamp. The clamp is movable relative to the base to enable placement of the workpiece onto the base, and the clamp secures the workpiece to the base to block relative movement between the workpiece and the press brake system without additional user operations. The workpiece is secured via the table assembly without a manual force (e.g., to hold the workpiece in place) while the press brake system operates to bend the workpiece. The table assembly reduces, limits, or eliminates certain user operations during metalworking. The table assembly improves user experience (e.g., reduce an amount of manual labor) and/or efficiency associated with press brake operations.
B21D 5/04 - Cintrage des tôles le long de lignes droites, p. ex. pour former un pli simple sur des presses particulières avec fixation d'un côté de la pièce
Protection of shunt capacitor banks in electric power delivery systems using protection settings determined by the protection device or an independent system using capacitor bank arrangement data is described herein. Capacitor bank arrangement data may be entered into an intelligent electronic device (IED). The IED may determine protection settings for the capacitor bank arrangement and for fail-open and fail-short scenarios using the arrangement data. The protection settings may be loaded into a protection element, which applies protection using signals from the power system. Upon detection of an unbalance condition, the IED may effect a protective action by opening a circuit breaker to disconnect the capacitor bank from the power system.
H02H 7/16 - 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 capacités
H02H 1/00 - Détails de circuits de protection de sécurité
85.
Breaker control units and related systems and methods
Breaker control units (BCUs) may include an output to selectively cause a circuit breaker (CB) to open and close a circuit, a voltage input to monitor a voltage of at least one of a bus and a line, a processor to calculate a point-on-wave switching time, and a remote input configured to be coupled to a remote intelligent electronic device (IED) to receive commands to selectively open and close the CB at a specified optimal time. Electric power systems may include such BCUs. Methods of switching CBs may include monitoring at least one of a bus and a line with a BCU and controlling switching of the CB at a predetermined point-on-wave value with onboard electronics of the BCU. The methods may additionally include calculating a trapped charge and/or a residual flux with an IED and causing the BCU to switch the CB at a specific optimum point-on-wave value.
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
H02H 1/00 - Détails de circuits de protection de sécurité
Circuit breakers may perform a variety of operations, including isolating a faulty part of the power system that may result in a cascading outage. However, circuit breaker operations may cause wear and tear of the tripping assembly components, which eventually cause the circuit breaker to wear out. Additionally, long periods of non-operations may cause the mechanical parts inside a circuit breaker to move sluggishly or, in some instances, fail to move at all. In an embodiment, a system includes a circuit breaker that trips to control power flow and an intelligent electronic device (IED) including an electronic display. The IED receives measurement data associated with a trip event for the circuit breaker, generates a current profile based on the measurement data, and presents the current profile via the electronic display.
G01R 31/327 - Tests d'interrupteurs de circuit, d'interrupteurs ou de disjoncteurs
H01H 71/04 - Moyens pour indiquer l'état du dispositif de commutation
H01H 73/36 - Disjoncteurs de protection à maximum de courant dans lesquels un courant excessif ouvre les contacts en libérant automatiquement une énergie mécanique emmagasinée par l'actionnement précédent d'un mécanisme à réarmement manuel comportant un déclencheur électromagnétique mais aucun autre déclencheur automatique
A mount for an electronic device includes a first mount portion having a first base and a first extension extending crosswise to a first base surface of the first base. The mount also includes a second mount portion having a second base, a channel support extending from the second base, a lateral wall extending from the channel support, and a second extension extending crosswise to a second base surface of the second base. The second base, the channel support, and the lateral wall define a channel configured to receive the first base of the first mount portion, and the first base surface, the second base surface, the first extension, and the second extension cooperatively define a space configured to receive the electronic device.
Various examples of systems and methods are described herein in which multiple intelligent electronic devices (IEDs) are connected in a network. A software-defined network (SDN) controller may include a rule subsystem, a test mode subsystem, a packet inspection subsystem, and a validation subsystem. The rule subsystem may define a plurality of flow rules. A test mode subsystem may operate the SDN in a testing mode. A packet insertion subsystem may insert test packets within the SDN while the SDN is in the testing mode. The validation subsystem may validate or fail each flow rule depending on how the various test packets are handled.
H04L 12/803 - Commande de flux ou commande de congestion Équilibrage de charge, p.ex. répartition du trafic entre multiples liens
H04L 12/24 - Dispositions pour la maintenance ou la gestion
H04L 12/721 - Procédures de routage, p.ex. routage par le chemin le plus court, routage par la source, routage à état de lien ou routage par vecteur de distance
H04L 41/122 - Découverte ou gestion des topologies de réseau des topologies virtualisées, p. ex. les réseaux définis par logiciel [SDN] ou la virtualisation de la fonction réseau [NFV]
A device may include a loop detection subsystem to place a network flow on a first switch to forward any received open flow discovery protocol (OFDP) packets to the software-defined network (SDN) controller. The device may cause the first switch to egress a query OFDP packet out of a first port of the first switch. The device may detect that the first port on the first switch is attached to a network loop based on the same query OFDP packet being ingressed by the first port of the first switch. The device may implement a remedial action in response to the detected network loop.
Disclosed herein are systems for determining a broken conductor condition in a multiple-phase electric power delivery system. It has been observed that broken conductors pose a safety concern when occurring in the presence of people or vulnerable environmental conditions. Broken conductor conditions disclosed herein may be used to detect and trip the phase with the broken conductor, thus reducing or even eliminating the safety risk. Broken conductors may be determined using detected phase series arcing differences in one phase without commensurate differences in other phases. In various embodiments the phase series arcing attributes may be phase current monitored for decrement and/or phase resistance monitored for increase.
G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
91.
TOKEN-BASED ACCESS CONTROL WITH AUTHENTICATION DATA
The present disclosure relates to token-based authentication that uses authentication data including a personal identification number (PIN). For example, an issuer may obtain privilege information including the PIN. The issuer may combine the privilege information with authentication information. The issuer may determine an issuer hash value based on the combined privilege information and authentication information. The issuer may determine an encrypted hash value based on the issuer hash value and a private key of the issuer. The issuer may combine the privilege information with the encrypted hash value as a token. The issuer may then issue the token. The receiver can restrict allowed operations appropriately based on success decrypting the encrypted hash.
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 9/06 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité l'appareil de chiffrement utilisant des registres à décalage ou des mémoires pour le codage par blocs, p. ex. système DES
92.
DIRECT CURRENT MONITORING USING A CENTRALIZED PROTECTION AND CONTROL SYSTEM
The present disclosure pertains to devices, systems, and methods for monitoring a direct current (DC) system. In one specific embodiment, a system may include a centralized protection and control (CPC) system. The CPC system may include a DC interface configured to be in electrical communication with a first DC system and a communication subsystem configured to receive a first measurement, from a remote device, of at least one electrical parameter of the first DC system. The CPC system may also include a DC monitor subsystem to generate a second measurement of at least one electrical parameter of the first DC system based on the electrical communication between the DC interface and the first DC system and generate a comparison of the first measurement and the second measurement. An action subsystem may generate an action based on the comparison between the first measurement and the second measurement.
G05F 1/46 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
93.
Incorporation of parallel redundancy protocol in a software defined network
This disclosure pertains to identifying and configuring an in-band controller operating on a host in a software defined network (SDN), the host configured to use a parallel redundancy protocol (PRP). In one embodiment, a system may include a network in communication with the host, the network comprising a plurality of switches interconnected with a plurality of physical links. The in-band controller is in communication with the network and includes a PRP identification subsystem to generate a packet configured such that the network forwards the packet back to the in-band controller, to analyze the packet and determine that the packet conforms to PRP, and to identify a first communication host in communication with the network and configured to operate using PRP. A traffic routing subsystem of the in-band controller may create a plurality of PRP communication flows between the in-band controller and the first communication host.
An active capacitor discharge tool may include circuitry for efficiently discharging a capacitor. The active capacitor discharge tool may include batteries (or regulated voltage sources) for actively discharging a capacitor using multiple discharge paths. The active capacitor discharge tool may alternatively short the capacitor to a ground connection using the multiple discharge paths based on a timing associated with a clock frequency of a clock signal. Discharging a capacitor by alternatively grounding the capacitor using different discharge paths may distribute a generated discharging heat and may discharge the capacitor faster. Moreover, when a capacitor includes stored electrical charges corresponding to a capacitor voltage lower than a sufficiently discharged voltage to enable an operator to handle the capacitor, the active capacitor discharge tool may short an anode and a cathode of the capacitor to discharge the capacitor to the ground connection voltage level.
A controller may use energy packets to control a prime mover of a machine. The controller may include an energy packet measurement control to calculate energy packets, perform post-processing actions on the energy packets to generate processed energy packets, and convert the processed energy packets into a fuel valve reference. Post-processing may include a calibration correction to remove measurement artifacts.
H02P 9/04 - Commande s'exerçant sur un moteur primaire non électrique et dépendant de la valeur d'une caractéristique électrique à la sortie de la génératrice
F02C 9/26 - Commande de l'alimentation en combustible
H02P 9/10 - Commande s'exerçant sur le circuit d'excitation de la génératrice afin de réduire les effets nuisibles de surcharges ou de phénomènes transitoires, p. ex. application, suppression ou changement brutal de la charge
H02P 9/42 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie pour obtenir la fréquence désirée sans faire varier la vitesse de la génératrice
H02P 101/00 - Adaptation particulière des dispositions pour la commande de génératrices
Devices, systems, methods, and techniques for multicast failover handling in a computer communication network are disclosed. The methods herein described are particularly suited to software-defined networks (SDNs), and comply with requirements for assuring delivery of network traffic to each destination from a source engaged in multicast network traffic dissemination, assured delivery of each data packet as introduced into the network by the source device and avoidance of duplicate delivery of data. The methods herein are agile and respond rapidly to changes in a network while traffic is on the network.
Devices, systems, methods, and techniques for multicast failover handling in a computer communication network are disclosed. The methods herein described are particularly suited to software-defined networks (SDNs), and comply with requirements for assuring delivery of network traffic to each destination from a source engaged in multicast network traffic dissemination, assured delivery of each data packet as introduced into the network by the source device and avoidance of duplicate delivery of data. The methods herein are agile and respond rapidly to changes in a network while traffic is on the network.
A software-defined network (SDN) rule modification counter system provides counters that track all changes and edits to rules at SDN controllers and SDN switches on an SDN. The system compares counters at the SDN controller and SDN switch to determine if they match. If the counters do not match, a change has been made to the rules. With the addition of rule edit statistics the SDN controller will now have visibility that a rule modification was performed. The SDN controller then verifies that the state of the device is the same as its expected state as a secondary integrity check. Based on the rule modification notification, changes to a central rules table at the SDN controller and changes to rule settings at the SDN switch are made according to pre-programmed logic.
Systems and methods to send or receive redundant Generic Object Oriented Substation Event (GOOSE) messages are described. An intelligent electronic device may obtain power system data from a power system. The TED may publish the power system data in a first GOOSE message and publish the same power system data in a second GOOSE message. The second GOOSE message may have different header information than the first GOOSE message to allow the subscriber to determine that the redundant GOOSE messages are both received. If the first and second GOOSE message are duplicates with identical header information but unique trailer information methods allow the subscriber to determine that the duplicate GOOSE messages are both received.
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
H04L 67/12 - Protocoles spécialement adaptés aux environnements propriétaires ou de mise en réseau pour un usage spécial, p. ex. les réseaux médicaux, les réseaux de capteurs, les réseaux dans les véhicules ou les réseaux de mesure à distance
H04L 69/22 - Analyse syntaxique ou évaluation d’en-têtes
Systems and methods to send or receive redundant Generic Object Oriented Substation Event (GOOSE) messages are described. An intelligent electronic device may obtain power system data from a power system. The IED may publish the power system data in a first GOOSE message and publish the same power system data in a second GOOSE message. The second GOOSE message may have different header information than the first GOOSE message to allow the subscriber to determine that the redundant GOOSE messages are both received. If the first and second GOOSE message are duplicates with identical header information but unique trailer information methods allow the subscriber to determine that the duplicate GOOSE messages are both received.
H04L 43/08 - Surveillance ou test en fonction de métriques spécifiques, p. ex. la qualité du service [QoS], la consommation d’énergie ou les paramètres environnementaux
