A gripping head(1), a gripping system and a gripping method are disclosed. The gripping head(1) including a holding device(10) for applying holding force to a first part(P1), an acoustic pressure measurement device(11) for measuring a first acoustic pressure level of a first acoustic wave(W1) propagating from the first part(P1) resulted from a second acoustic pressure of a second acoustic wave(W2) ex-erted by an acoustic transducer against the first part (P1) held by the holding device (10), and a controller(12) for judging a contact of the first part(P1) with an second part(P2) using the measurement of the first acoustic pressure level output from the aco-ustic pressure measurement device(11). It is possible to detect contact of assembly p-arts(P1,P2) by measuring the acoustic pressure level of acoustic wave(W1,W2) tran-smitted from the gripped assembly part(P1,P2).
The present invention relates to a method and system for controlling at least one of a conveyor assembly (102a, 102b, 102c, 108) and a robot (110) according to at least one setting with a controller. The conveyor assembly is arranged for receiving and transporting a plurality of units (104a, 104b, 104c), and the robot is arranged for picking and transferring one or more units of the plurality of units between at least two sections of the conveyor assembly for packaging. The method comprises receiving a value of a dimensional property of at least one unit of the plurality of units. The method further comprises deriving the at least one setting based on the value of the dimensional property. The method also comprises controlling at least one of the conveyor assembly and the robot based on the at least one setting. Here, the steps of receiving, deriving and controlling are performed while the at least one unit is transported.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
3.
TRANSFORMER-LESS STATIC SYNCHRONOUS SERIES COMPENSATOR AND METHOD THEREFOR
A transformer-less static synchronous series compensator for an AC electrical power transmission system having a transmission line carrying an AC current and a method therefor. The transformer-less static synchronous series compensator includes a multiple of voltage source converters (100a, 100b... 100n), each of which having DC input and AC output and being configured to generate an alternating voltage with controllable magnitude and controllable phase angle across the AC output; wherein the AC outputs of the multiple of voltage source converters are configured for parallel-injection of the generated alternating voltages into a phase of the transmission line (A, B, C). The AC transmission line phase current can be distributed to the multiple of inputting the alternating voltages in parallel into the phase of the AC transmission line, and thus the current handling capability requirement for power semiconductor switches used in each of the voltage source converter can be significantly reduced.
A transformer-less static synchronous series compensator (SSSC) for an AC electrical power transmission system having a transmission line carrying an AC current and a method for protection against electrical damage are provided. The transformer-less SSSC including: a voltage source converter (100) having a DC input and an AC output and being configured to generate an alternating voltage with controllable magnitude and controllable phase angle across the AC output, the AC output being configured to inject the generated alternating voltage into a phase of the transmission line; a filter circuit (101) being arranged coupled with the voltage source converter (100) in parallel across the AC output of the voltage source converter (100); a bypass circuit (102); and an electrical current limiting circuit (103) being coupled with the bypass circuit (102) in series; wherein: the series-coupled current bypass circuit (102) and electrical current limiting circuit (103) are coupled with a first capacitive element (1011) of the filter circuit (101) in parallel. The transient nature of the electrical current limiting circuit (103) will limit the increase in the current flowing through the thyristor of the bypass circuit (102) thus limit the current peak when the bypass circuit (102) is switched on. Consequently, the current limiting circuit (103) acts like limiting the current transients generated from the influences of both of the line fault current and the discharging current.
A control system for controlling a process. The control system includes primary and secondary module buses over which information may be transmitted between a controller and a plurality of I/O modules. Each of the controller and I/O modules has a power sense circuit for detecting current on the high side of a driver and a ground sense circuit for detecting current on the low side of the driver. The driver is determined to have failed if either the current on the high side of the driver measured by the power sense circuit is outside a predetermined high range or the current on the low side of the driver measured by the ground sense circuit is outside a predetermined low range.
The invention provides a method for condition monitoring of a robot and providing a service to the robot. The method comprises identifying one or more patterns associated with an operation of the robot. The one or more patterns are identified from recorded data associated with the operation of the robot, and operation of equipment connected with the robot. The method also comprises collecting real-time data of the robot and the equipment connected with the robot. The method further comprises detecting an occurrence of the identified one or more patterns in the real-time data. In addition, the method comprises determining provisioning of the service to the robot based on the real-time data in response to the occurrence of the identified one or more patterns.
A method and system for fault prediction for an equipment is disclosed. The method includes selecting a fault of interest for the equipment and corresponding fault signature; receiving historic time series data for a plurality of equipments, where each historic time series data for each equipment has the fault signature and event signatures prior to the fault. A common trend signature occurrence in the historic time series data is selected as a pre-fault trend signature that is uniquely identified in a statistically significant number of the event signatures prior to the fault signature. The pre-fault trend signature is then used for installed equipments for generating an alert; and communicating the alert at the occurrence of the pre- fault trend signature in the installed equipment.
A system for monitoring electrical properties of a power line includes a current sensor with a gapped core and a conductive winding, The system further includes output control circuitry coupled with the current sensor, and including voltage leads configured to provide an output voltage indicative of electrical current through the power line, to an intelligent electronic device (IED). A gas discharge tube is connected to winding leads of the conductive winding and to the output control eirciritry, and activated in response to real or simulated short circuit conditions, to protect the output control circuitry. Related methodology is disclosed.
G01R 1/36 - Overload-protection arrangements or circuits for electric measuring instruments
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
A unique electrical switchgear system may include a circuit breaker compartment having a compartment wall. The electrical switchgear system may also include a tapered floor pan mounted on the compartment wall. The floor pan may have two side walls disposed oblique to each other; a back wall; and a top wall coupled to the side walls and defining a discharge opening adjacent to the back wall. The two side walls, the top wall and the compartment wall may form a tunnel for channeling cooling air in a first direction. The back wall may be operative to redirect the cooling air in a second direction different from the first direction for discharging the cooling air from the discharge opening.
A system and method for sharing authentication information and authorization information across a Substation Automation Network have been disclosed. The system and method enable the Substation Automation Network to function independent of the availability of a CAMS which typically administers the process of sharing of authentication information and authorization information across the Substation Automation Network. The system and method propose segregating the IEDs of the Substation Automation Network into different groups, and dynamically enabling at least one IED to transmit the authentication information and authorization information to the other IEDs in the respective groups, at predetermined time intervals, thereby ensuring that the Substation Automation Network is operable independent of the CAMS.
The invention provides a method for verifying a safety logic executed by a controller of a control system of an industrial process, wherein the safety logic corresponds to a predefined cause and effect matrix. The controller executes the safety logic by controlling one or more devices based on one or more input signals received from one or more sensors. The method comprises loading data corresponding to the safety logic from one of the controller and a tool used for generating the safety logic. The method also comprises determining a relationship between a plurality of causes and a corresponding plurality of effects from the data, and reconstructing a cause and effect matrix implemented by the safety logic based on the relationship. The reconstructed cause and effect matrix is compared with the predefined cause and effect matrix to determine one or more inconsistencies in the safety logic for verifying the safety logic.
The invention provides a power regulating device (100) that regulates supply of power between two or more electrical systems (120,122). The power regulating device comprises a power stage (102) and a control board (104). The power stage has a rectifier stage (106), a DC link (108) and an inverter stage. The rectifier stage is coupled with the DC link, which in turn is connected with the inverter stage (110). Further, the rectifier stage is connected with an electrical system acting as a source, and the inverter stage is connected with an electrical system acting as a load. The DC link may be connected with a DC source. The control board controls the connections between the rectifier stage, the DC link and the inverter stage and the electrical systems based on sensor (118) inputs. Further, the control board provides a control logic to the inverter stage for feeding of power to the load(s).
H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
H02M 7/44 - Conversion of DC power input into AC power output without possibility of reversal by static converters
H02P 3/14 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor by regenerative braking
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
The present invention relates to a switching device (1) for interrupting a current flowing through a first electric circuit (10) at a current zero-crossing comprising an arc extinguishing chamber having at least two splitters (30, 31) for splitting an arc into partial arcs, wherein the arc is formed upon an interruption and the partial arcs forms a first alternative current path in parallel or series with the current path of the first electric circuit (10), characterized in that the switching device (1) further comprises a second electric circuit (20) including an impedance unit (50) being configured to connect to the at least two splitters (30, 31) such that, upon an interruption, it forms a second alternative current path in parallel with the first alternative current path.
A wind farm condition monitoring method and system, comprises: acquiring historical SCADA data, and/or historical sensor data received from sensors which are installed in a wind farm, and historical wind turbine status which indicate wind turbines historical status (101); selecting algorithm for all types of historical data sources according to pre-defined basic rules, training different models for different historical data sources to establish relationship between the historical data sources and the historical wind turbine status (102); acquiring real time SCADA data and/or real time sensor data as real time data source, selecting the trained model depending on type of the real time data source, inputting the real time data source to the selected trained model, obtaining the real time wind turbine status (103).
A method and a device for ensuring execution of a plant process in a distributed control system during a network attack are disclosed. The networked plant includes an engineering workstation, an operations workplace, and a plurality of input/output (IO) points configured to communicatively couple with a controller. Based on the traffic of the network at the controller, the priority of the communication receive tasks are modified. Further, anomalous condition is determined based on the actual and estimated schedule time of a low priority consumer task and a corrective action is taken.
A DC grid current differential protection method and system are provided. The method includes: sampling value acquiring step (S301): acquiring pole voltage and current sampling values in local and remote terminal of a DC line; fault component extracting step (S302): calculating fault component pole voltage and current values according to the pole voltage and current sampling values of local and remote terminal respectively; Bergeron model calculating step (S303): acquiring fault component pole current values at selected point on the DC line between the local and the remote terminal, by the calculation of the fault component pole voltage and current values of local and remote terminal calculated in the fault component extracting step, based on Bergeron model; current differential protection judging step (S304): judging internal fault if the fault component pole current values at selected point meet preset current differential protection criterion. Because of adopting Bergeron model, it improves the calculating speed.
H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
17.
METHOD AND CONTROLLER FOR CONTROLLING CAPACITOR VOLTAGE BALANCING IN MODULAR DC/DC CONVERTER AND MODULAR DC/DC CONVERTER SYSTEM
A method and controller for controlling capacitor voltage balancing in a modular direct-current to direct-current (DC/DC) converter. The method comprises in each of sub-process of a voltage transitional process of a square wave for an arm: S701: identifying candidate sub-modules in a predetermined status from sub-modules in the arm; S702: obtaining capacitor voltages of the candidate sub-modules; S703: selecting at least one target sub-module from the candidate sub-modules based on the obtained capacitor voltages; and S704: generating a control signal to the at least one target sub-module in the arm so that a voltage across the arm changes gradually in the voltage transitional process. Using the above method, well-balanced capacitor voltages can be provided, which could provide a square waveform with a voltage changing gradually in the voltage transitional process at corresponding arm and at the same time meet requirements on the arm current by a soft switching. Therefore, the switching loss can be reduced even at a higher switching frequency and thus the system efficiency can be improved.
H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
18.
CONTROL SYSTEM FOR ELECTRIC VEHICLE CHARGING STATION AND METHOD THEREOF
A control system for an electric vehicle charging station (EVCS) is provided, the control system comprises: a central controller configured to receive an ancillary service order from a power grid and distribute the ancillary service order to one or more local controllers periodically; and the one or more local controllers configured to control a plurality of electric vehicle supply devices based on the distributed ancillary service order in real time. The method controlling the electric vehicle charging station (EVCS) is also provided.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
19.
SYSTEM AND METHOD FOR ADVISING WIRELESS COMPUTER NETWORKS ON INTER-NETWORK INTERFERENCES
The present invention provides a system and method for advising wireless computer networks on inter-network interferences during their life time. The method of the present invention initially observes initial channel utilization profiles along with corresponding time-slots of dynamic network elements and network characteristics of a first network and stores as historical channel utilization profiles. The initial transmission profiles an interfering second network are also recorded. The threshold transmission profiles are then recorded as historical transmission profiles. The aggregator determines interference patterns, by comparing historical channel utilization profiles with runtime threshold transmission profiles and advises and pre-warns appropriate network actions to a network manager of the first network on the interference prone zones. The system of the present invention includes a first network with a common multi-network interference observer, to advise on inter-network interferences.
H04W 72/08 - Wireless resource allocation based on quality criteria
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
20.
PASSAGE DETERMINATION OF A PORTABLE WIRELESS TRANSCEIVER DEVICE
There is provided a method for determining passage of a portable wireless transceiver device along a constrained path. The method comprises acquiring at least one time of flight (ToF) measurement and auxiliary information, the at least one ToF measurement being measured between a portable wireless transceiver device and a single network node. The network node is mounted proximate a constrained path. The method comprises determining whether the portable wireless transceiver device has passed the network node along the constrained path or not based on the at least one ToF measurement and the auxiliary information.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
G01S 5/16 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
21.
SWITCHING DEVICE FOR THREE-POSITION SWITCH MANUAL OPERATION MECHANISM AND BUS ROOM OF GAS-INSULATED SWITCHGEAR
Disclosed is a switching device (500) for a three-position switch manual operation mechanism for realizing a vertical installation. The switching device comprises a supporting frame (510), an operation panel (520), a transmission gear (530), a positioning and limiting plate (540), a switching mechanism (550), a positioning pin (560), a supporting plate (570) and an operation mechanism (580) of the switching device (500). The operation direction is switched via the transmission gear (530), the mechanism is positioned and limited via the positioning and limiting plate (540), and the switching device (500) is freely switched between an ¡°operating position¡± and a ¡°rest position¡± via the operation mechanism (580) of the switching device (500).
A method for detecting the status of a mesh node in a wireless mesh network, wherein a gateway is building up a vector over time by combining active detection, passive detection and binary tests on anomaly metrics and wherein the status of the mesh node is regarded as misbehaving when the vector reaches a certain level.
A robot controller (3) for controlling the operation of a robot unit (1). The robot unit comprises a plurality of robot arms (5a-c) that each comprises at least one motion mechanism (7a-d, 8) adapted to set the robot arm in motion, wherein a tool (4) of the robot unit is adapted to be moved along an operational path (2). The robot controller is adapted to determine the kinetic energy subjected to each motion mechanism of the robot arms (5a-c), and, on basis of the determined kinetic energies, control the speed of each motion mechanism, while maintaining a movement of the tool along the operational path, so that said kinetic energy does not exceed a certain level.
The present disclosure relates to a method performed in a first distributed generator (DG) 1 in an electrical microgrid. The method comprises obtaining measurements of at least one parameter in the microgrid local to the first DG. The method also comprises, based on the obtained measurements, determining a first primary control mode of the first DG. The method also comprises instructing a primary control 4 of the first DG that the first DG should be in said first control mode. The method also comprises sending information about that the first DG is in the first control mode, to at least a second DG in the microgrid. The method also comprises receiving information about in which control mode each of said at least a second DG is from each of said at least a second DG, respectively. The method also comprises forwarding said received information to a distributed secondary control 5 of the first DG.
H02J 3/34 - Arrangements for transfer of electric power between networks of substantially different frequency
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 3/40 - Synchronising a generator for connection to a network or to another generator
H02J 3/46 - Controlling the sharing of output between the generators, converters, or transformers
H02J 4/00 - Circuit arrangements for mains or distribution networks not specified as ac or dc
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 3/12 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
H02J 3/24 - Arrangements for preventing or reducing oscillations of power in networks
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
The present disclosure relates to a method performed by a component 3 in an electrical microgrid 1. The method comprises obtaining measurements of a plurality of parameters in the microgrid. The method also comprises reporting the parameter measurements periodically to a controller 2 in the microgrid at a first rate. The method also comprises observing that at least one of the measured plurality of parameters deviates from a predetermined range. The method also comprises, in response to said observing, switching from reporting the measurements of all the plurality of parameters to only reporting the measurements of a reduced group of parameters of the plurality of parameters to the controller, said reduced group of parameters comprising the deviating parameter. The present disclosure also relates to a corresponding method performed by the controller 2, as well as to a component and a controller of the microgrid.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
A standalone automation device is disclosed. The device comprises a display (10) which has a plurality of LEDs (20) for displaying information, wherein the plurality of LEDs (20) are capable of being lightened when the display (10) is turned on, and the brightness of the plurality of LEDs (20) is adjustable. A method for adjusting a display of a standalone automation device is also disclosed. The method comprises turning on the display, which has a plurality of LED for displaying information; and setting the brightness of the plurality of LED, wherein the plurality of LEDs is capable of being lightened when the display is turned on.
G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
A multi-cable socket connector is for connecting multi-cable (42) to a terminal (50) of a device, which comprises: a conducting portion (20), which comprises a first conductive part (23) and a second conductive part (24); the first conductive part (23), configured to have a plurality of holes (25) which are electrically connected to a plurality of mating terminals (40) of the cables (42), each mating terminal (40) of the cable (42) respectively passing through the corresponding hole (25); the second conductive part (24), configured to electrically connect to the terminal of the device; a mounting assembly, configured to house and fix the conducting portion (20) and the mating terminals (40) of the cables (42), which comprises a cover (10) and a bushing (30). It improves the usability, security and reliability of the multi-cable connector.
H01R 4/26 - Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
A system for charging EV battery, comprising: a plurality of central converters, each of which having an AC input and a DC output, the AC inputs are electrically connectable to an external AC power supply and the DC outputs are connected in series; at least one switch, each of which having a plurality of throw terminals, two pole terminals and an actuator, the throw terminals are respectively electrically connected to terminals of the DC outputs, the actuator is used for switching between electrical connection of pole terminals and throw terminals so as to selectively supplying a voltage at a central DC output between the two pole terminals as a central DC voltage; at least one transformer, each of which having a primary winding circuit and a secondary winding circuit, and the primary winding circuit being electrically connected to the external AC power supply; at least one distributed converter for supplying at least one distributed DC voltage with a level below that of the central converters, each of the distributed converters having an AC side electrically connected to the secondary winding circuit of the corresponding transformer and a DC side electrically connected to the central DC output of the corresponding switch in series; and a first controller connected to at least one switch, so that the actuator of electrical connection between the pole terminals and the throw terminals of respective one of the switches is controlled so as to supply a combination of the central DC voltage and the distributed DC voltage as a charging voltage for the battery of the corresponding electric vehicle. By having the EV battery charging system, it is helpful for decreasing the converter capacity while maintaining the charging capacity and vehicles with various nominal voltages can be charged simultaneously.
The present disclosure relates to a control method performed by a control system 6 in a microgrid 1 comprising a plurality of electrical phases A, B and C, in which a first single-phase distributed generator (DG) 4 is connected to a first phase A and configured for injecting power into said first phase, and a second single-phase DG 4 is connected to a second phase B and configured for injecting power into said second phase. The method comprises, when the microgrid is connected to a power grid 2, commonly controlling the phases which are in sync with each other, in a grid connected control mode. The method also comprises detecting that the microgrid is islanded from the power grid. The method also comprises, in response to the detected islanding, switching control mode from the grid connected control mode to an islanded control mode. The method also comprises, in the islanded control mode, individually controlling each of the phases based on the power balance of the phase.
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
30.
SWITCH APPARATUS HAVING VOLTAGE TRANSFORMER OR LIGHTNING ARRESTER ON BUSBAR SIDE
A switch apparatus having a voltage transformer or a lightning arrester on the busbar side. A busbar chamber having a voltage transformer on the busbar side comprises a set of feeder three-position switch system and a set of voltage transformer system having an isolating device. The feeder three-position switch system is used to implement power feed from the busbar side to the feeder side, isolation between the feeder side and the busbar side, and grounding of the feeder side. The voltage transformer system having the isolating device is used to monitor the busbar voltage and the insulating state, and provide a voltage circuit for apparatuses such as protection and automatic devices and instruments. A busbar chamber having a lightning arrester on the busbar side comprises a set of feeder three-position switch system and a set of lightning arrester system. The feeder three-position switch system is used to implement power feed from the busbar side to the feeder side, isolation between the feeder side and the busbar side, and grounding of the feeder side. The lightning arrester system on the busbar side can release energy of the thunder and lightning or can also release the overvoltage energy of the operation of a power system, protect the busbar from damages of transient overvoltage, and can block the following current without causing grounding short-circuit of the system.
A standalone automation device (100) is disclosed. The device (100) comprises: a removable memory port (101), configured to transmit data between the device (100) and an equipment (200) which also has a removable memory port; a removable memory control unit (102), comprising a signal convertor (112) for converting a removable memory interface to a serial interface; a power supply unit (103), configured to provide a power supply when the device (100) is connected to the equipment (200) and disconnected to the field; and an isolation unit (104), configured to isolate the power supply. The standalone automation device (100) is convenient for connecting with a computer or a cellphone.
It provides a system for charging a battery of at least one electric vehicle, comprising: a first converter, being adapted for supplying a first DC voltage; at least one transformer; at least one second converter, each of which is coupled to an output of the respective one of the at least one transformer for supplying a second DC voltage; and a first controller; wherein: an output of the first converter is arranged to be connected with output of the respective one of the second converters in series so that supplying a combination of the first DC voltage and the second DC voltage as charging voltage respectively for the electrical vehicle batteries; and the first controller is adapted for controlling the second converter in consideration of measurement of charging current to the electrical vehicle battery to which it supplies the charging voltage thereby adjusting the second DC voltage in response to the electrical vehicle battery. By having the electrical vehicle battery charging system, the total number of the electrical vehicle battery that can be charged at the same time has correlation with the number of the second converter
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02M 7/19 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only arranged for operation in series, e.g. for voltage multiplication
33.
METHOD AND DEVICE OF DETERMINING REFERENCE OUTPUT POWER FOR ENERGY STORAGE SYSTEM IN WIND POWER GENERATION SYSTEM
A method and system for determining a reference power for an energy storage system (ESS) in a wind power generation system. The method comprises filtering an actual wind power output to obtain a desired power output delivered to a grid; determining a reference output power for the energy storage system from the actual wind power output and the desired power output delivered to the grid; and adjusting the reference output power for the energy storage system based on a change in predicted wind power output at the next time point. Therefore it can provide a direct control strategy for smoothing wind farm output fluctuations and limiting power ramping rate within required range, which is more practically feasible than the existing strategies and could result in better control performance.
The present disclosure relates to a method performed in a Building Automation System (BAS) 1 of a building, comprising a Building Management System (BMS) 2; a plurality of communication devices 4; and a plurality of positioning devices 3. The method comprises a first communication device of the plurality of communication devices obtaining information about its position in the building based on measurements on wireless transmissions from at least one positioning device of the plurality of positioning devices, said at least one positioning device having a known position in the building. The method also comprises the BMS receiving the obtained information about the position from the first communication device. The method also comprises the BMS determining the position in the building of the first communication device based on the received information. The method also comprises the BMS assigning at least one parameter to the first communication device based on the determined position. The method also comprises the BMS sending instructions to the first communication device, instructing the first communication device to be configured with the assigned at least one parameter.
A control system (20) having wire break detection capability is provided. The control system (20) comprises a plurality of digital output channels, a timing division multiplexer (21) comprising a plurality of inputs and one output, wherein the plurality of inputs are connected to the corresponding plurality of digital output channels of the multi-channel device with digital outputs, respectively, and a wire break detection circuit (22) connected to the one output of the timing division multiplexer (21) and configured to perform wire break detection on corresponding one of the plurality of digital output channels, wherein the timing division multiplexer (21) is configured to in a detection period, enable the corresponding one of the plurality of digital output channels to connect with the wire break detection circuit (22) to perform wire break detection on the corresponding one digital output channel, and disable other digital output channels to connect with the wire break detection circuit (22).
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
G01R 31/08 - Locating faults in cables, transmission lines, or networks
A method is provided for centering a wheel of a vehicle with respect to another object such as a hub or wheel loader. The wheel has a rim and a tire mounted on the rim. The method provides at least one guide structure between a portion of the rim and a portion of object. The guide structure has a sliding contact surface. The wheel is moved with respect to the object so that the rim or the portion of the object engages the sliding contact surface, thereby aiding in centering the wheel with respect to the object in at least X-axis and Y-axis directions.
This invention concerns a method for providing status information of a channel's health condition in a communications network, the communications network including an IEC 61850 health report information model, the method including detecting channel impairments,mapping the detected channel impairments to the attributes in the IEC 61850 health report information model and reporting the channel impairments to protection IEDs and/or local SCADA in IEC 61850 based substations. The solution proposed helps the protection IEDs to predict an impending channel failure and to adapt their reaction times or their reach of the protected transmission line. This can prevent unnecessary over tripping on external transmission line faults..
A socket (10) is provided for removing or installing a fastener (43) having a hexagonally shaped portion. The socket includes a body (12) having a longitudinal axis (X) and opposing first and second ends. First surfaces define a tool-receiving portion 17 at the first end. The tool-receiving portion is constructed and arranged to receive a portion of a tool (40). Second surfaces define a socket portion (19) at the second end. The socket portion is constructed and arranged to receive and engage the portion of the fastener therein. Holding structure is associated with the socket portion and is constructed and arranged to non-magnetically hold the portion of the fastener in the socket portion so as to not fall out of the socket portion, either due to friction or vacuum, without providing torque to the fastener when the socket is rotated during installation or removal of the fastener.
B25B 13/06 - SpannersWrenches with rigid jaws of socket type
B25B 23/08 - Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
B25B 23/10 - Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
B23B 19/00 - HeadstocksEquivalent parts of any machine tools
39.
METHOD AND DEVICE OF PROVIDING A MOBILE TERMINAL WITH DOOR ENTRY SYSTEM ACCESS SERVICE AND DOOR ENTRY SYSTEM
Embodiments of the present disclosure relate to a method and device for providing a mobile terminal with door entry system access service and a door entry system. In an embodiment of the present disclosure, the method comprises registering the mobile terminal in response to a register request from the mobile terminal; determining whether there is already media from a caller; forwarding a call request from the caller to the registered mobile terminal if there is already media from the caller; and forwarding the media from the caller to the registered mobile terminal over a channel for forwarding the media in response to a call response from the registered mobile terminal. With embodiments of the present disclosure, it can provide "plug and play" functionality so that the user can access the door entry system at any time, which greatly facilitates use of the mobile terminal as an indoor station, and improves usability and the user experience.
Embodiments of the present disclosure relate to a method and device for transmitting video in a door entry system, a method and device for receiving video in a door entry system, a method and device for coordinating video communication in a door entry system and a door entry system. In an embodiment of the present disclosure,the method for transmitting video in a door entry system comprises sending information on a plurality of video formats supported by a calling device; receiving information on a video format selected from the plurality of video formats by a called device; and sending video in the selected video format. With embodiments of the present disclosure, it can enable video transmission in multiple video formats so that each communication terminal can receive video in a video format suitable for itself, which can well process issues on performance difference among different communication terminals in the door entry system and will greatly improve the user experience.
The present invention discloses a household system of a door entry system (DES) for supporting multiple indoor stations in one apartment. The household system comprises a router, a plurality of indoor stations, a gateway and an individual proxy server belonging to one apartment; whereinthe router is used for setting up the household network and connecting to all other devices of the apartment, including the server, the gateway and the indoor stations; the indoor stations are used by a user to answer the call; the gateway, one side of which is connected with the door entry network used for connecting all devices that exposed out of the apartment and the other side of which is connected with the household network through the router, and the DES devices out of the apartment are capable of communicating with multiple indoor stations through the gateway; the server, is configured to manage multiple indoor stations belonging to the apartment. Compared with the existing prior arts, the proposed solutions greatly improve usability, security and reliability.
The present disclosure relates to a microgrid (1) comprising at least a first distributed generator (DG) (4a); a direct current (DC) bus (6); an alternating current (AC) bus (5); a switch (3) arranged for connecting the AC bus to a power grid (2); a DC to AC converter (7) for connecting the first DG to the AC bus; a first power controller (8a) for controlling power exchange between the first DG and the DC bus; and a converter controller (9) of the DC to AC converter for controlling an output of the first DG to the AC bus. The converter controller is configured for controlling the DC to AC converter in a first mode when the first power controller is configured not to allow any power exchange between the first DG and the DC bus, and in a second mode when the first power controller is configured to allow power exchange between the first DG and the DC bus.
The present invention relates to an electric power cable (1, 3) comprising a metal conductor (2) and an electric insulation layer (4) extruded to coaxially and radially surround the conductor (2), wherein the insulation layer (4) comprises a polymeric surface (6) facing away from the conductor (2). A metallic coating (8) is adsorbed on the polymeric surface (6) and the adsorbed coating (8) provides a water barrier for the electric power cable. The invention also relates to a process for the production of such electric cable.
C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
C23C 16/00 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
The present disclosure provides a method (30) for manufacturing a high power cable (20). The method (30) comprises providing (1a, 1b, 1c) a metal conductor core (1) with a carbon material, giving a carbon enhanced metal conductor (3), and preparing (10) the carbon enhanced metal conductor (3) with one or more layers, providing the high-power cable (20). A high-power cable (20) obtainable by the method (30) is also provided.
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of metals or alloys
H01B 1/04 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of carbon-silicon compounds, carbon, or silicon
The disclosure relates to a method 30 for manufacturing a high-power cable 20. The method 30 comprises providing 1a, 1b, 1c, 1d a synthetic conductor comprising carbon 4, and preparing 13 the synthetic conductor comprising carbon 4 with one or more layers, providing the high-power cable 20. A high-power cable 20 obtainable by the method is also provided.
H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon
H01B 13/016 - Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables
46.
USE OF A LIVE VIDEO STREAM IN A PROCESS CONTROL SYSTEM
The invention relates to a method, user interface control arrangement, and a computer program product for controlling a stationary user interface in an industrial process control system as well as to such a process control system. The user interface control arrangement obtains a first live video stream from a video camera (32) monitoring an industrial process at a first location (L1), obtains a process control view for the first location (L1), overlays the process control view on the first live video stream and displays the first live video stream with the overlaid process control view on a display of the user interface.
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
The invention is related to a control device, process control system and computer program product for controlling a process. The device comprises processing elements (46, 48, 50) set to perform signal processing operations and interconnected standardized control blocks (38) together providing a signal processing path, where at least one input signal (SP, PV) is received and from which at least one output signal (O) is supplied to the process, where some control blocks (38) define at least one input port (IP3), at least one output port (OP2) and at least one processing element (50) and how these are to be interconnected, wherein the control blocks comprise at least one basic control block and at least one primary extension control block, where a port of an extension block (38) is connected to a processing element (48) in the path of the basic block for enhancing the functionality of the basic block.
A robot gripper (10) comprises a single actuator (150) for moving a first finger (110) and second fingers (130) in relation to a base (20). The movements of the fingers (110, 130) in relation to the base (20) are constrained by respective parallelograms (120, 140). The kinematic chains from the actuator (150) to the fingers (110, 130) as well as the parallelograms (120, 140) comprise only revolute kinematic pairs, which gives the robot gripper (10) a high stiffness and small backlash.
The present disclosure relates to a resin impregnated paper (RIP) condenser core 1 configured for being positioned around an electrical conductor 6. The condenser core comprises a winding tube 3 forming a longitudinal through hole through the condenser core, configured for allowing an electrical conductor to be inserted there through; an electrically insulating RIP body 2 wound onto and around the winding tube; and at least one electrically conducting foil 4 coaxially encircling the winding tube and being surrounded by the RIP body insulating each of the at least one foil from any other of the at least one foil. The winding tube is of an electrically insulating material which has been chosen from a group consisting of materials having a volumetric thermal expansion coefficient within the range of 50% to 200% of the volumetric thermal expansion coefficient of the RIP body.
The invention relates to a method for joining of a first field device to a wireless sensor actuator network using a configuration tool. The wireless sensor actuator network comprises a plurality of interconnected field devices and gateway for connecting the interconnected field devices to a plant automation network comprising controllers and network manager. The method comprises receiving device information associated with the first field device, transmitting a commissioning request for the first field device, the commissioning request comprising device information and geographical location information of the first field device, receiving commissioning information comprising a session key, a network key and routing information, and commissioning the first field device using the received commissioning information for joining the said field device to the wireless sensor actuator network.
A method and system for monitoring and control of cooling of data centers is disclosed. The method includes recording an IT load distribution for a rack in the data centre and defining a temperature reference value (Tref), a cooling setting (Umin) and a temperature band (Tband) for the rack based on the IT load distribution for the rack. A rack inlet temperature (Track) is measured at periodic intervals; and cooling setting (Umin) is adjusted based on the IT load distribution, when the rack inlet temperature is below a difference between (Tref) and (Tband).
A power cable assembly device adapted to be arranged in the spaces between neighbouring power cores of a power cable, comprises an extruded profiled body (4) made of a polymer material and adapted to the cross-sectional shape and elongation of the power cable, said profiled body (4) comprising a first wall (6), a second wall (8) and a third wall (10), said first wall (6) being convex and having first and second opposite end portions (6a, 6b), the first wall (6) having an exterior surface (102) adapted to face a jacket of the power cable,said profiled body further comprising a chamber wall (18) extending from said second wall (8) to said third wall (10), said chamber wall (18) having an interior surface (100) defining a chamber (16), said profiled body (4) defining a slit (15) between said second wall (8) and said third wall (10) to said chamber(16), said chamber (16) being adapted to receive a fibre optic cable (30) via said slit (15). According to the invention, at least a portion of said interior surface (100) and at least a portion of said exterior surface (102) is provided with a semi-conductive material (21), respectively, said interior surface (100) and said exterior surface (102) being electrically interconnected by said semi-conductive material (21).
The present disclosure relates to a power cable filler device (1) adapted to bear against a first power core and a second power core in a power cable. The power cable filler device (1) comprises a first arced wall (3) which defines a portion of a first circle (9) having a first diameter, a second arced wall (5) and a third arced wall (7), each defining a portion of a second circle (11) having a second diameter which is smaller than the first diameter, which first arced wall (3) has a first end (3a) connected to a first end (5a) of the second arced wall (5), and which first arced wall (3) has a second end (3b) connected to a first end (7a) of the third arced wall (7), wherein the second arced wall (5) has a second end (5b) and the third arced wall (7) has a second end (7b) adjacent each other and defining a slit (13), whereby a chamber is formed between the first arced wall (3), the second arced wall (5) and the third arced wall (7), a first partitioning wall (17a) in the chamber, extending between the first arced wall (3) and the second arced wall (5), and a second partitioning wall (17b) in the chamber, extending between the first arced wall (3) and the third arced wall (7), wherein the first partitioning wall (17a) extends in a first radial direction (19a) along its entire extension from the first arced wall (3) to the second arced wall (5), and wherein the second partitioning wall (17b) extends in a second radial direction (19b) along its entire extension from the first arced wall (3) to the third arced wall (7), which first radial direction (19a) and second radial direction (19b) are defined with respect to the radius of the first arced wall (3). A power cable is also disclosed herein.
The present invention provides a method for maintaining a homogenized melt and controlled fields of a molten metal, by regulating the reciprocal combination of non‐intrusive electromagnetic members, which are connected to a heat loss compensator. The molten metal from the tundish is supplied to a caster, at uniform melt flow rate and temperature to a caster. The present invention also provides an apparatus and system for maintaining a homogenized melt and controlled fields of a molten metal in a tundish so as to facilitate an optimum melt superheat and melt flow rate at tundish outlets.
The invention relates to a method and a system for mine dewatering and ventilation operations. The method comprises steps of obtaining plant data in relation to mine dewatering and ventilation operation for model based control and optimization. A plurality of process models of plant units and devices are used in the mine dewatering and ventilation operation. An objective function is formulated for minimization of energy consumption in the mine dewatering and ventilation operation using the tuned plurality of process models and solved for determining set points for optimized mine dewatering and ventilation operation. The mining plant units and devices are controlled with DCS controllers and other controllers around the set points for minimized energy consumption in the mine dewatering and ventilation operation. A mine dewatering operation management system is also provided.
A component feeder (10) for dispensing components (30) during consecutive work cycles comprises a lift (40) for elevating a selection of components (30) from a bulk storage during each work cycle. A controller (80) controls a travel (90) of the lift (40), the controller (80) being configured to adjust the travel (90) from one work cycle to another. Since the lift (40) does not always need to travel all the way down to receive components (30), by adjusting the travel (90) from one work cycle to another after need the work cycle of the component feeder (10) is shortened at the same time as an excessive wear of the components (30) is decreased.
B65G 47/14 - Devices for feeding articles or materials to conveyors for feeding articles from disorderly-arranged article piles or from loose assemblages of articles arranging or orientating the articles by mechanical or pneumatic means during feeding
57.
A MULTILEVEL CONVERTER WITH REDUCED AC FAULT HANDLING RATING
A multilevel converter (10) converting between AC and DC comprises a phase leg having a first and a second phase arm, the first phase arm being connected between a first pole (P1) and a first AC terminal (ACA1) and the second phase arm being connected between the first AC terminal (ACA1) and ground, where the phase leg comprises cells of a first type having a unipolar voltage contribution and cells of a second type having a bipolar voltage contribution, where each cell comprises at least one energy storage element for providing the voltage contribution and cell switches for controlling the voltage contribution, wherein the first phase arm comprises cells of the second type and the energy storage elements of all the converter cells of the second phase arm are configured to be bypassed in case of a phase fault on the AC side of the multilevel converter.
The present invention relates to a device including a high voltage apparatus (2') comprising a housing (3') enclosing a fluid for providing cooling and/or electrical insulation of the apparatus, and a detector equipment (5') adapted to detect one or more physical properties of the fluid and positioned spaced apart from the housing, and the device comprises a pipe assembly (6') for housing a fluid, whereby the pipe assembly is arranged between the detector equipment and the housing such that the fluid is extended without interruption in the pipe assembly, the fluid in the pipe assembly is in communication with the fluid in the housing, and the detector equipment is in direct communication with the fluid in the pipe assembly. The detector equipment is positioned below a top level (20) of the housing and at a safe distance from the housing of the apparatus, which makes it possible to carry out inspection, testing, maintenance, and calibration of the detector equipment without taking the high voltage apparatus out of operation.
A power conversion system (3) for providing power from a plurality of PV modules (5) to a power grid (7). The conversion system comprises a conversion device (10) comprising an MPPT unit (12) and an energy storage (14), a control system and an inverter (22). The conversion system comprises a plurality of conversion devices (10) connected in series, each MPPT unit comprises means for enabling connection to a PV-module. A first MPPT unit and a second MPPT unit are connected to the inverter. The control system is configured to control the energy storages so that the maximum output power to the power grid is lower than a certain level.
A busbar (100) comprises a main body portion (1) is disclosed. A groove (12) is formed on the main body portion. Connecting ends (2) extend from both ends of the main body potion respectively. The connecting end comprises a transformation portion (21) and a flat connecting portion (22), and the flat connecting portion is connected to the main body portion through the smooth transformation portion. At least one connecting holes (221) are provided on the flat connecting portion. A busbar assembly (200) is also disclosed. The busbar and the busbar assembly are easy to be installed and have good heat dissipation performance, a simple structure, low cost, uniform electric field, higher mechanical bending strength, and favorable dynamic stability.
H01B 5/02 - Single bars, rods, wires or stripsBus-bars
H01R 4/58 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
61.
SYSTEM FOR CONDITION MONITORING OF ELECTRIC MACHINE, MOBILE PHONE AND METHOD THEREOF
It is proposed a system for condition monitoring electric machine and the method thereof. The system includes a portable unit, being adapted for free movement around said electric machine; a magnetic field sensor, being adapted for measuring magnetic field intensity at at least one of a plurality points of a path of said free movement; a processing unit, being adapted for receiving at least one corresponding magnetic field intensity signal from said magnetic field sensor, comparing at least one magnetic field intensity value to at least one corresponding expected value, and determining, based on the comparison, if a fault is present in the electric machine; wherein: said magnetic field sensor and said processing unit are integrated into said portable unit. And the method includes steps of moving said portable unit to at least one point of a plurality points of a path of said free movement around said electric machine; measuring at least one magnetic field intensity at said at least one of a plurality points of a path of said free movement; and comparing at least one magnetic field intensity value to at least one corresponding expected value, and determining, based on the comparison, if a fault is present in the electric machine.
A system and a method for contactless wireless communication for navigation of entities in an automation module are described. The system includes a passive programmed tag for identifying a plant area visited and a device operated upon by an operator; a contactless reader-writer for being tagged by the passive programmed tag to track the plant area visited or the device operated upon by the operator; a transferring component for transferring the tagged input to the automation module; a processing component for identifying a matching entity in the automation module that matches the tagged input as a matched entity; a display component for displaying the matched entity; and an input interface for updating the matched entity.
G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
63.
A METHOD AND SYSTEM FOR FAULT DETECTION DURING A PLUNGER LIFT OPERATION IN HYDROCARBON WELLS
In one aspect, the invention provides a method for plunger fault monitoring for a plunger operation cycle, wherein the method comprises providing an upper bound and a lower bound for each of sensor operation measurements, followed by providing dynamic change capturing and providing estimated operational data. Subsequently, the method involves obtaining plunger operation measurements during the plunger operation cycle, which are then compared with the corresponding upper and lower bound for each sensor operation to determine a sensor condition. If the sensor condition is found to be normal, then the plunger operation measurements are compared with dynamic change capturing to determine a structural condition. If the structural condition is determined to be normal, then the method of the invention comprises comparing the plunger operation measurements with estimated operational data based on at least one of historic plunger operation cycles, or a pre-defined plunger operation model to determine a behavioral condition.
In various aspects, the invention provides a system and methods to improve plunger lift operations, by providing improved estimates for at least one of: a liquid level in a well reservoir at any level, the position of the plunger at any given time, and threshold pressure value and threshold flow rate to make more informed decisions to open, close the valve, and maintain the productivity of the well. The improved estimations include obtaining dynamic operating variables by use of existing surface measurements, and based on historical data and mathematical models developed on the basis of the historical data. This in turn also enables the estimation of other values related to plunger lift operations more accurately.
It is proposed a multi-phase electric drive and it method. The multi-phase electric drive includes a multi-phase power transformer, including at least one primary winding and a first number of secondary windings, said primary winding being electrically connectable to a source of multi-phase AC power; a first number of power units, each of said first number of power units having input connected with a corresponding one of said first number of secondary windings, and a multiple of said first number of power units being serially connected with respective others of said power units in each phase output line connectable to a multi-phase AC load; at least one measurement device, being electrically connected with said input to at least one of said first number of power units and being adapted for measuring an electrical quantity at the input thereto; and a control system, being adapted for detecting a fault based on a value for the measured electrical quantity. It is to be understood that fuses assembled on the power units are not necessary for protection of a secondary side fault.
H02P 29/02 - Providing protection against overload without automatic interruption of supply
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02H 7/12 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for convertersEmergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for rectifiers for static converters or rectifiers
It provides a processing system for condition monitoring of an electric machine, a measurement device and a system using the same. The processing system includes: a portable device and a processing module. The portable device includes a jack socket, including an audio signal female terminal and a microphone signal female terminal and being configured to fit a jack plug, and an A/D converter, being adapted for converting a sensor data analog signal received from said microphone signal female terminal of said jack socket to a sensor data digital signal and sending it to a processing module. The processing module, being adapted for determining, based on said sensor data represented by said sensor data digital signal if a fault is present in said electric machine. By using the portable device with a jack socket as data collector, it is helpful for making measurement in industry environment easier and less complicated, where unpleasant industry environment imposes less restriction on the operation of measurement.
Embodiments of the present invention disclose an apparatus (100) adapted to be connected to a current path in at least one transmission line (101) which interconnects at least two power systems. The apparatus (100) is adapted to control electric power trans- mission in the at least one transmission line (101) between the power systems and controllably effect discontinuation of flow of electrical current in the at least one transmission line (101). The apparatus (100) comprises electrical converter circuitry (104, 120) adapted to controllably introduce current and/or voltage into the current path so as to adjust flow of electrical current in the at least one transmission line(101). The apparatus (100) comprises circuit breaking circuitry (106, 107, 108, 109, 120) adapted to interrupt electrical current in the current path.
The present invention relates to a method for black-start of a microgrid (1) comprising a plurality of distributed electrical generators (DG:s) and a plurality of loads, the method comprising: segmenting the microgrid to form a plurality of islanded network segments (4) which are electrically disconnected from each other, each segment comprising at least one of the DG:s and at least one of the loads; black-starting a first segment of the plurality of islanded network segments; connecting the first segment with a second segment, thereby electrically combining the first and second segments; power balancing the combined first and second segments with respect to power generated by the DG:s of the first and second segments and the loads connected to the combined first and second segments; and sequentially connecting and balancing any further of the network segment(s) to the combined first and second segments, thereby black-starting the whole microgrid. The invention also relates to a microgrid configured for performing the method.
The present disclosure relates to an arrangement (5) for a dynamic high voltage subsea cable comprising an electrically conductive core (13), a corrugated sheath (9) defining a radial water barrier, an electrical insulation system (11) arranged to insulate the electrically conductive core (13) from the corrugated sheath (9), and a liquid (17). The electrical insulation system (11) has an external surface (11a) and the corrugated sheath (9) has an internal surface (9b), and wherein the liquid (17) is arranged between the external surface (11a) of the electrical insulation system (11) and the internal surface (9b) of the corrugated sheath (9) for counteracting deformation of the corrugated sheath (9).
A method of handling a failed semiconductor switching module of a converter cell comprising a plurality of semiconductor switching modules and a cell capacitor, each semiconductor switching module being of a type that has a short circuit failure mode, SCFM, and each semiconductor switching module comprising a number of semiconductor submodules controllable by a gate unit and a kill-switch. The method comprises a) controlling the kill-switch associated with the failed semiconductor switching module, which is in the SCFM, to drive the failed semiconductor switching module to a resistive state by driving functioning semiconductor submodules in the failed semiconductor switching module to resistive states, b) controlling that healthy semiconductor switching module of the plurality of semiconductor switching modules of the converter cell, which together with the failed semiconductor switching module provides a flow path for current through the cell capacitor, to obtain a conductive state in which current is able to flow through said healthy semiconductor switching module, thereby discharging the cell capacitor through said healthy semiconductor switching module and the failed semiconductor switching module,c) controlling said healthy semiconductor switching module to maintain an ON-state permanently, and d) controlling the kill-switch associated with the failed semiconductor switching module to drive the functioning semiconductor submodules of the failed semiconductor switching module to an ON-state, whereby the converter cell is bypassed.
It provides a power unit including: a multi-phase bridge rectifier, having inputs being electrically connectable to a source of multi-phase AC power; a smoothing filter, being connected to an output of said multi-phase bridge rectifier; and a multiple of H-bridge inverters; wherein: input terminals of said multiple of H-bridge inverters are electrically connected in parallel with said smoothing filter; and output terminals of said multiple of H-bridge inverters are electrically connected in parallel and are adapted for providing a single-phase output to an AC load. By having the power unit, it has one three-phase bridge rectifier thus it is helpful for eliminating the current sharing issues occurring among more than one three-phase bridge rectifiers. In addition, by having three H-bridge inverters electrically connected in parallel in the power unit, the current rate for the power unit is increased as compared with that with one H-bridge inverter. Preferably, a multiple of pre- charging resistors can respectively arranged between said output of said respective one of said multiple of legs of said multi-phase bridge rectifier and said respective one of said multiple of capacitor banks.
H02M 7/493 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
It is provided a multi-phase electric drive for use with a multi-phase AC load and the power unit thereof. The multi-phase electric drive includes a multi-phase power transformer, including at least one primary winding and a plurality of secondary windings, said primary winding being electrically connectable to a source of multi-phase AC power; a multiple of power units, each of said first number of power units having an input connected with a corresponding one of said plurality of secondary windings, each of said plurality of power units having a single-phase controllable output to such multi-phase AC load, and said plurality of power units being serially connected with respective others of said power units in each phase output line connectable to said multi-phase AC load; said power unit each includes: a rectifier, being adapted for converting incoming power from the corresponding secondary windings into a DC voltage; and a capacitor bank, being connected to an output of said rectifier through DC+ and DC-; wherein: said capacitor bank includes a plurality of capacitor sets connected in series; and each of said capacitor sets includes one capacitor or a multiple of capacitor elements connected in parallel; a voltage measurement device, being adapted for measuring respective voltages, as regards to a potential at one of DC+ and DC- of the capacitor bank, at the other of DC+ and DC-and connection points among the capacitor sets connected in series; and a control system, being adapted for controlling said plurality of power units based on the measured voltage between DC+ and DC- of the capacitor bank and monitoring a fault on said plurality of capacitor sets based on the measured respective voltages. By having such capacitor bank voltage monitoring system, the capacitors can be protected for avoidance of over-voltage across each capacitor.
H02M 5/27 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means for conversion of frequency
73.
A METHOD FOR PROVIDING AN INSULATED HIGH VOLTAGE POWER CABLE
A method for providing an insulated MV and HV power transmission cable comprising an inner electrical conductor (104), the method comprising the steps of providing (301; 401) at least one polymer-based electrical insulator (204) comprising a polymer-based composition, which is crosslinkable, such that the polymer-based electrical insulator circumferentially covers the inner electrical conductor (104); and -curing (302; 402) the polymer-based electrical insulator, whereby the polymer-based composition is crosslinked, by exposing the polymer-based electrical insulator to a maximum temperature of 280°C or less. The invention further relates to a transmission cable comprising a polymer-based electrical insulator obtained by said method.
H01B 13/14 - Insulating conductors or cables by extrusion
H01B 3/00 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties
H01B 3/44 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes vinyl resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
Embodiments of the present invention disclose a circuit breaking arrangement (100) adapted to be connected to a current path in at least one transmission line (101) arranged to carry an electrical current for controllably effecting discontinuation of flow of electrical current in the at least one transmission line (101). The circuit breaking arrangement (100) comprises a plurality of series connections (6-1, 6-2) of a plurality of power semi-conductor switching elements (7-1, 7-2, 7-3, …, 7-N, 8-1, 8-2, 8-3, …, 8-N). The plurality of series connections (6-1, 6-2) of power semiconductor switching elements (7-1, 7-2, 7-3, …, 7-N, 8-1, 8-2, 8-3, …, 8-N) are connected in parallel relatively to each other.
H02H 7/26 - Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred
H02J 3/36 - Arrangements for transfer of electric power between ac networks via a high-tension dc link
H03K 17/10 - Modifications for increasing the maximum permissible switched voltage
H03K 17/12 - Modifications for increasing the maximum permissible switched current
H02H 3/05 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with means for increasing reliability, e.g. redundancy arrangements
The present invention relates to a transmission cable comprises a conductor (7) or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer (9) comprising an extruded insulationmaterial, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage U0 is 450 kV or more. The type test comprises subjecting the power cable to a DC voltage of 1.85 * U0 during 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85* U0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U0 is 450kV, or 525 kV,or more. (Fig. 3)
H01B 3/00 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties
H01B 3/44 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes vinyl resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
76.
METHOD AND POWER CONVERTER FOR DETERMINING CELL CAPACITOR DEGRADATION IN A CONVERTER CELL
A method and arrangement for determining a capacitor degradation parameter associated with the degree of degradation of a cell capacitor in a converter cell of a power converter comprising a plurality of identical converter cells, including redundant converter cells, which converter cell, prior to determining the capacitor degradation parameter, has been bypassed. The method comprises a) obtaining a measurement parameter value associated with discharging of the cell capacitor, forming a dc-link, from a measurement start voltage level at a measurement start time to a measurement end voltage level at a measurement end time, and b) determining a value of the capacitor degradation parameter based on the measurement parameter value.
The present disclosure relates to a method for localisation and positioning of humans and devices in underground environments. Several different wireless technologies are used and different important variables are extracted. These variables are fed into a decision maker system to estimate the current position of a human or a device. The decision maker system also compensates for humans/devices in non-line-of-sight (NLOS) conditions to obtain a high accuracy of the true position.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
There is provided an electronics module(8). The electronics module comprises a circuit board (6). The circuit board comprises electronic equipment. The electronics module comprises a housing (5, 7). The housing encloses the circuit board. The electronics module comprises a thermally conductive panel (9a, 9b, 9c, 9d, 9e). The thermally conductive panel at least partly covers at least two opposite side surfaces of the housing. There is also provided an arrangement (1c) comprising at least two such electronics modules. There is also provided a method for providing such an electronics module.
The invention concerns a method of detecting conditions of electric or electronic subsea equipment, a measurement device for electric or electronic subsea equipment provided in an enclosure with an insulating medium as well as to a subsea installation comprising the electric equipment and the measurement device, where the measurement device comprises a circuit board (26) with a hole (28) to be filled with the insulating medium, the hole having a rim and a first and a second opposed spaced apart capacitor electrode (36, 34) forming a measurement impedance for measuring changes in the dielectric properties of the insulating medium.
E21B 47/10 - Locating fluid leaks, intrusions or movements
G01M 3/00 - Investigating fluid tightness of structures
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
80.
MULTI-LAYERED DIELECTRIC POLYMER MATERIAL, CAPACITOR, USE OF THE MATERIAL AND FORMATION METHOD THEREOF
A multi-layered dielectric polymer material, a capacitor comprising the multi-layered dielectric polymer material, a use of the multi-layered dielectric polymer material and a method for forming the multi-layered dielectric polymer material are disclosed. The multi-layered dielectric polymer material (100) may comprise a plurality of dielectric layers (101, 102, 103), wherein the plurality of dielectric layers may comprise an identical base material. The base material may be compound with agents for at least one of the plurality of dielectric layers. It may overcome compatible issues for convention multi-layered material. The dielectric polymer material may have increased dielectric strength and excellent thermal properties.
A rotary joint of a robot and the robot including are disclosed. The rotary joint comprises a wiring unit (4) having a main portion (12) of a flexible printed circuit (FPC) board (1) therein. Said rotary joint further comprises a protective unit (3) fixed to said wiring unit (4), in which an end portion (11) of said FPC board (1) is connected to a group of cables (2). Compared with the existing prior arts, the proposed solutions prevent the damage of FPC during assembly and/or disassembly of robots, while not losing compactness.
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
In aspects, the present invention discloses a method for replacing a first field device with a second field device using a commissioning tool. The method comprising retrieving a device description file associated with the first field device, analyzing the device description file, generating a first object by mapping a parameters of the second field device to a parameter from the identified one or more parameters based on a first index and a second index, generating a configuration file associated with the second file device based on the device description file and the generated first object, and transmitting the configuration file to the second field device for commissioning operation of the second field device. The step of analyzing the device description file comprises identifying one or more parameters from the plurality of parameters for mapping based on a predetermined criteria.
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
H04L 12/24 - Arrangements for maintenance or administration
83.
POWER MANAGEMENT IN A SELF-SUPPLIED PROTECTION RELAY
The invention relates to the field of power distribution in a protection relay. The invention is a self-powered protection relay adapted to supply power to itself from a power line and to measure current in a power line with at least one current sensor connected in the power line, to power itself and to analyze the measured current for providing electrical protection by generating a trip signal to operate a circuit breaker connected in the power line. The self-powered protection relay comprises at least two modules for analyzing the measured current in the power line and for providing electrical protection by generating trip signals based on the analyzed measured currents; and a power management unit for programmable controlling of supply of power to a first module and a second module from the various modules of the protection relay. The trip signal to operate the circuit breaker connected in the power line is generated by logical combination of the trip signals from the at least two modules.
The present invention relates to a bundle (9; 90; 290; 390; 490; 590) of cables (11, 13, 15; 111, 113, 115; 211, 213, 215; 311, 313, 315; 411, 413, 415; 511, 513, 515; 611, 613, 615) comprising at least two underwater cables and a securing means (17; 117; 217, 217'; 317; 417; 519; 617) for fastening the underwater cables together. The securing means (17; 117; 217, 217'; 317; 417; 519) is water-soluble, biologically decomposable and/or chemically decomposable. The invention also relates to a method of laying at least two underwater cables simultaneously from a vessel and to a use of a water- soluble, biologically decomposable and/or chemically decomposable securing means (17; 117; 217, 217'; 317; 417; 519; 617) to fasten at least two underwater cables (11, 13, 15; 111, 113, 115; 211, 213, 215; 311, 313, 315; 411, 413, 415; 511, 513, 515; 611, 613, 615) together to form a bundle (9; 90; 290; 390; 490; 590) of cables.
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
A rotation apparatus comprises a machine base (11) and a stator (12). The machine base comprises a driving end intermediate support board (13) and a non-driving end intermediate support board (14) disposed parallel along the length direction of the machine base. Inner holes used for supporting the stator are separately provided in the driving end intermediate support board and the non-driving end intermediate support board. The inner holes in the driving end intermediate support board are asymmetrical on the top and the bottom. The vibration of the rotation apparatus can be effectively reduced, the output power is improved, and a good cooling effect is provided.
A high voltage capacitor bank comprises at least one capacitor tower (1, 2, 3). The capacitor tower comprises a plurality of support racks (11) for supporting capacitors (13) at a plurality of levels of the capacitor tower, a plurality of insulators (15) arranged between the support racks, a plurality of capacitors (13) distributed on the support racks (11) and electrically connected in series, and a plurality of corona rings (17) located at some of said levels of the capacitor tower. At least one corona ring (17) is located such that an imaginary plane (A), extending in a direction parallel to the at least one corona ring, extends through the corona ring (17) and through an adjacent capacitor (13).
The present disclosure relate to a method 50 performed in a control unit 12 for opening a contactor device 1. The contactor device 1 comprises a carrier 8 being movable between a closed position in which a current is allowed to flow in a current path and an open position in which the current path is broken. The control unit 12 is configured to enable the movement of the carrier 8 between the closed position and the open position by energizing a coil 6 of an electromagnetic circuit. The method 50 comprises: initiating 51 the opening of the contactor device 1 by de-energizing the coil 6, wherein the de-energizing comprises using a demagnetization circuit 40 comprising a discharge element 37, the discharge element 37 being arranged to consume energy in the coil 6; bypassing 52, at a first point of time, the discharge element 37; and re-energizing 53 the coil 6.
H01H 47/22 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
88.
METHOD FOR CONTROLLING A CONTACTOR DEVICE, AND CONTROL UNIT
The present teachings relate to a method 60 in a control unit 12 for closing a contactor device 1. The control unit 12 is configured to enable the movement between the closed position and the open position by energizing a coil 6 of an electromagnetic circuit. The method 60 comprises applying 61 a voltage over the coil 6; determining 62, during a first period of time, current through the coil 6 and voltage over the coil 6 and estimating based thereon model parameters for a model predicting the behavior of the current through the coil 6 if the contactor device 1 were to stay in an open position, and measuring 63, after the ending of the first period of time, current through the coil 6 and determining 64 a difference between, on the one hand the measured current and, on the other hand a predicted current of the model, and repeating the measuring 63 and determining 64 until a state change from open position to closed position is detected by the difference in current.
H01H 47/04 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted or with reduced energising current
89.
MAGNETIC BEARING ARRANGEMENT AND METHOD OF OPERATING A MAGNETIC BEARING ARRANGEMENT
An electromagnetic bearing arrangement comprising an electromagnet including an amplifier arrangement having a switching leg pair (32, 33), with each having two switches (34a-b, 35a-b); a coil (31) electrically connected to the junction between switches of each of the switching legs; a power supply (26); and a controller for controlling the amplifier arrangement to operate the electromagnet. Each of the switches is provided with a diode (37a-b, 38a-b) for bypassing the switch when the switch is in an off state: The controller is configured to control the amplifier arrangement to operate in a first operation mode, wherein a first pair (34a, 35b) of the switches are being switched while a second pair (34b, 35a) of the switches are kept in an off state, and in a second operation mode, wherein the first pair of the switches are switched to an off state and the second pair of the switches are being switched while the first pair of the switches are kept in the off state.
A resolver system (10) for determining a position angle (200) of a rotating axis comprises a resolver (30) including an exciter coil (40), a first detector coil (50) for generating an X-signal (60) and a second detector coil (70) for generating a Y-signal (80). A signal generator (110) for generating an excitation signal (120) to the exciter coil (40) is configured to modify an excitation signal parameter during normal operation of the resolver system (10). By exciting an exciter coil (40) of a resolver (30) with an excitation signal (120) wherein at least one excitation signal parameter is modified, a fault detector (300) can base its diagnosis on an observation on whether or not this parameter modification is reflected on the X and/or Y values (170, 180) at a resolver output.
G01D 5/20 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
G01D 3/036 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
91.
GROUND SYSTEM FOR HIGH VOLTAGE SEMICONDUCTOR VALVE
A high voltage valve arrangement (l) comprising a high voltage valve unit (2); an external electric shield structure (6) arranged at least partially around the high voltage modular valve unit (2) and a grounding system (4). The grounding system comprising an grounding system (12) configured to be remotely extended from a retracted position (W) to an extended position (E), whereby the extendable grounding device establishes electric connection with the external shield structure when it is extended from the retracted position (W).
H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
H01L 25/11 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices having separate containers the devices being of a type provided for in subclass
92.
SURGE ARRESTER WITH MOULDED SHEDS AND APPARATUS FOR MOULDING
The invention relates to a high voltage surge arrester (10) comprising insulating polymer housing (30) with a protruding shed (40). The shed (40) has an upper shed surface (50) that forms a blunt angle (55) with the longitudinal axis (z) of the surge arrester (10) and a lower shed surface (60, 70). Said lower shed surface comprises an inner portion (60) that forms an essentially right angle (65) with said axis (z) and an outer portion (70) that forms an acute angle (75) with said axis (z). Further the invention relates to an apparatus for moulding an electrically insulating polymer housing.
H01B 17/50 - Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like
H01B 17/52 - Insulators or insulating bodies characterised by their form having cleaning devices
The embodiment of the present disclosure provides a cutout which can comprise a top contact assembly (100) being capable of electrically coupled with a first electric cable (120); a bottom contact assembly (140) being capable of electrically coupled with a second electric cable (160); an insulator assembly (130) secured to the top contact assembly (100) in a first end (131) thereof, and secured to the bottom assembly (140) in a second end (133) thereof opposite to the first end (131); and a tube assembly (170) having a fuselink (171) placed therein for conducting electricity between the top contact assembly (100) and a bottom contact assembly (140). The bottom contact assembly (140) has a bottom contact member (145) which is capable of electrically coupled with the second electrical cable (160) at one end thereof, and removeably coupled with the tube assembly (170) at the other end thereof, such that a current path is formed from the second electrical cable to the tube assembly via the bottom contact member.
The present invention relates circuit breakers for breaking of an electrical current. Disclosed is a circuit breaker which comprises a current-interrupting switch; a resonant circuit connected in parallel with the current-interrupting switch, the resonant circuit comprising a circuit-closing device; and a disconnecting switch connected in series with the parallel connection of the current-interrupting switch and the resonant circuit. The current-interrupting switch and the disconnecting switch are implemented as vacuum interrupters. The circuit breaker can for example be used as a DC circuit breaker, or as an AC fault current limiter.
H01H 33/59 - Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle
95.
METHOD FOR CONTROLLING ELECTRICAL POWER IN A MICROGRID AND ARRANGEMENT COMPRISING DISTRIBUTED GENERATORS
A distributed method is provided for controlling electrical power in a microgrid (11), wherein a plurality of distributed generators (13a-d) supply electrical power to the microgrid, and each of the distributed generators is connected to a controller (15a-d) for controlling the real and reactive output power from the distributed generator. The method comprising the steps of measuring (31), for each of the distributed generators, a voltage level at a measuring point (17a; 17b) associated with that distributed generator and forwarding the measured voltage level to the controller connected to that distributed generator; determining (32), for each of the controllers, a parameter value related to the received measured voltage level and/or related to a reactive current injection capacity of the distributed generator connected to that controller;communicating (33), from each of the controllers, its determined parameter value to each other ones of the controllers; determining (34) a sequential order in which the controllers are to control the distributed generators to inject reactive power into the microgrid based on the communicated parameter values; and controlling (35) the distributed generators to inject reactive power into the microgrid by means of the controllers in the determined sequential order.
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 3/16 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
96.
A METHOD TO OPTIMIZE OPERATION OF A TRANSFORMER COOLING SYSTEM,THE CORRESPONDING SYSTEM AND A METHOD TO DETERMINE THE VFD CAPACITY
The present invention discioses a method to optimize operation of a transformer cooling system, the corresponding cooiing system, and a method to determine the capacity of Variable Frequency Drives (VFD) that are used in the said transformer cooling system. Said method comprises the following steps: preprocessing the initial data input by user; collecting the on-line data, and calculating the optimized control command to meet the requirement of the transformer loss, top-oil temperature variation and noise; and executing the control actions by controlling a controllable switch and/or sending a control command to a VFD. Compared with the existing prior arts, the proposed solutions are much more intuitive and practical in the field of the cooling system.
The present invention relates to an insulation material for use in MV and HV power systems comprising - at least one Ci_i0-olefin polymer in an amount of up to 99 wt% of the total weight of the insulation material, - a crosslinker in an amount between 0.01 and 0.6 wt%, and - a crosslinkable organic ion scavenger of formula (I), wherein: A is an aromatic cycle or aromatic heterocycle comprising one or more rings, whereby the heterocycle comprises one or more atoms selected from O, N and S, n is 1 to 10, L is a spacer selected from the group comprising -CH2-, C2H4-, - (CH2)0-2-O-(CH2)0-2, -(CH2)0-2-S-(CH2)0-2, -(CH2)0-2-N-(CH2)0-2, -(CH2)0-2- C(O)-(CH2)0-2, -(CH2)0-2-O-C(O)-(CH2)0-2 and -(CH2)0-2-C(O)-O-(CH2)0-2, and t is 0 to 10, in an amount between 1 and 30 wt%, and whereby the weight ratio between the crosslinker : the crosslinkable organic ion scavenger is between 1 : 7 and 1 : 300.
H01B 3/00 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties
C08F 210/00 - Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
A device (10) for monitoring a surge arrester, comprising : - a grounding line (23); - a measuring unit (24) comprising one or more analogue measuring circuits (25, 26) for measuring the electric current passing through the grounding line (23); - an electronic processing unit (43) for receiving measuring signals from the measuring circuits; - a data storage medium (44) for storing monitoring data produced by the processing unit; - a base module (20), which accommodates the grounding line and the measuring unit; and - an auxiliary module (40), which accommodates the processing unit and the data storage medium and is detachably mountable to the base module. When the auxiliary module is mounted to the base module, the components of the modules are connected to each other through a connector member (29) provided on the base module and a corresponding connector member (49) provided on the auxiliary module.
H02H 3/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
99.
A METHOD AND A DEVICE FOR VERIFYING ONE OR MORE SAFETY VOLUMES FOR A MOVABLE MECHANICAL UNIT
The present invention relates to a method and a device for verifying one or more safety volumes for a movable mechanical unit (1) positioned in an environment,wherein a world- coordinate system is defined in relation to the mechanical unit and in relation to the environment of the mechanical unit. The method comprises storing a description of one or more safety volumes defined in relation to the world-coordinate system, and repeatedly determining position and orientation of a portable display unit(5)in relation to the world- coordinate system, determining a graphical representation of the safety volumes(6)based on the description of the safety volumes and the position and orientation of the portable display unit,overlaying the graphical representation of the safety volumes on a view of the real mechanical unit and its environment to provide a composited augmented reality image, and displaying the augmented reality image on the portable display unit.
A communication handling arrangement for controlling a communication session for a number of participants, where the participants comprise a local user at a location in an industrial site where a process control system is operated and a remote user at a remote location and the communication session comprises a first media item (MI1) in the form of video captured by the local user, comprises a communication handling unit which provides the video stream to participants of the communication session for communication of the first media item (MI1), fetches graphical representations (PG1, PG2, PG3, PG4) of process control objects present in the communication of the first media item, provides the graphical representations in a second media item (MI2) for communication to the participants, receives via one of the media items, input from one of the participants concerning a first process control object present in both media items, and visually communicating to the other participants registration of the input via the other media item.
G05B 19/409 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using manual data input [MDI] or by using control panel, e.g. controlling functions with the panelNumerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control panel details or by setting parameters
patents