There is disclosed herein a method for locating a ground fault in an energy storage system comprising a plurality of parallel strings. A string comprises a plurality of energy storage units connected in series and an energy storage unit includes one or more energy storage modules and a bypass circuit. The method comprises for each string of said energy storage system, identifying an energy storage unit candidate as a potential ground fault location based on a number of energy storage units in the string, a pole unbalance voltage and an energy storage system voltage, and determining in which string the ground fault is located by successively bypassing, one string at a time, at least some of the identified energy storage unit candidates and identifying the string for which a deviation from an expected behaviour is measured.
There is disclosed herein a method for detecting a ground fault in an energy storage system comprising at least one string having a plurality of energy storage modules. The string is connected between a first direct current (DC) pole and a second DC pole. The first DC pole and the second DC pole are connected to an AC side through a respective converter. The method comprises determining a first co-phasal harmonic component based on at least one phase-to-ground voltage measured at the AC side, determining a second co-phasal harmonic component based on at least one pole-to-ground voltage measured at the DC side, and determining presence of a ground fault if the first co-phasal harmonic component increases and/or the second co-phasal harmonic component decreases. There is also disclosed herein a control unit and an energy storage system.
A power transformer for an on-load tap changer application is disclosed. The power transformer comprises a winding arrangement with a core, several windings wound around the core, and a shield located at an outer side of an outermost one of the windings, wherein the shield comprises or consists of a conductive or semiconductive material.
H01F 38/00 - Adaptations of transformers or inductances for specific applications or functions
4.
AN ELECTROSTATIC SHIELDING ELEMENT, AN ELECTROSTATIC SHIELDING ARRANGEMENT AND A TRANSFORMER ARRANGEMENT COMPRISING THE ELECTROSTATIC SHIELDING ARRANGEMENT
The disclosure relates to an electrostatic shielding element arranged on a first axis and comprising an electrostatically shielded volume (at least partially closed by an electrically conductive coating, wherein a thickness and an electrical conductivity of the coating are selected to enable a magnetic field of a predetermined frequency to penetrate the coating, into the volume. The disclosure also relates to an electrostatic shielding arrangement and to a transformer arrangement.
A method for producing a semiconductor body comprises providing a first semiconductor layer of SiC, introducing carbon into the first semiconductor layer so that at least a portion of the first semiconductor layer becomes at least one C-rich region, and growing a second semiconductor layer of SiC on the first semiconductor layer comprising the at least one C-rich region.
H01L 21/04 - Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
C30B 25/18 - Epitaxial-layer growth characterised by the substrate
C30B 25/20 - Epitaxial-layer growth characterised by the substrate the substrate being of the same materials as the epitaxial layer
C30B 31/22 - Doping by irradiation with electromagnetic waves or by particle radiation by ion-implantation
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
6.
COOLING ARRANGEMENT AND METHOD FOR COOLING AT LEAST ONE OIL-TO-AIR EXTERNAL HEAT EXCHANGER
A cooling arrangement for cooling at least one OAEHE in a transformer. The cooling arrangement comprises at least one impeller-motor device, at least one fluid pipe and a first fluid discharge device. The first fluid discharge device comprises a fluid inlet arranged to receive a fluid from the at least one fluid pipe, and at least one fluid outlet arranged to direct the fluid towards the OAEHE, wherein the at least one impeller-motor device is adapted to supply the fluid to the inlet of the first fluid discharge device via the at least one fluid pipe and cause the fluid to flow through the at least one fluid outlet of the first fluid discharge device in a direction of the at least one OAEHE. The cooling arrangement further comprises a second fluid discharge device adapted to disturb the fluid that flows through the at least one fluid outlet of the first fluid discharge device.
F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
There is disclosed herein an energy storage system for a direct current (DC) transmission system, the energy storage system being configured to be connected to a DC link. The energy storage system comprises a first system terminal, a second system terminal, a first converter connected to the first system terminal, and a second converter connected to the first converter and the second system terminal. The energy storage system further comprises an AC loop device providing an alternating current (AC) path, and a plurality of energy storage devices connected in parallel with the second converter comprising a cell having power electronic switches, and an energy storage element connected to the cell, wherein the cells are individually switchable. The present disclosure further relates to a method for providing energy storage to a DC transmission system.
The disclosure relates to an operating mechanism for a switchgear device, including a rotatable output shaft configured for achieving an opening or closing operation of the switchgear device by rotation, a rotatable energy storage lever and a spring, whereby the energy storage lever is configured for being rotated by a motor so as to drive the spring to be compressed for storing energy, and a rotatable drive lever torque-proof connected to the output shaft, rotatably connected to the energy storage lever and free-wheeling connected to the spring allowing a rotability between the drive lever and the spring of ≤60° for achieving the opening or closing operation of the switchgear device, whereby the spring is configured, during at least one of the opening and closing operation of the switchgear device, for releasing energy so as to rotate the drive lever after passing through the spring's dead-point position.
A superjunction power semiconductor device comprising a substrate, a plurality of core structures and a plurality of annular shell structures. Each core structure has a cylindrical shape extending in a direction perpendicular to a main surface of the substrate and comprising a first semiconductor material of a first conductivity type. Each shell structure surrounds one of the core structures on its outside and comprises a second semiconductor material of a second conductivity type.
A vacuum interrupter for an on-load tap changer comprising a cylindrical housing arranged on an axis including a wall enclosing a hermetically sealed inner volume and a ceramic bottom part extending perpendicularly to the axis, the wall comprising a first optical interface between the inner volume and an outer environment, the first optical interface being configured to be transparent to at least one optical wavelength, the inner volume comprising an optical guide open to an environment of the inner volume, a switch coaxially arranged with the housing on the axis within the inner volume of the housing, the vacuum interrupter further comprising a shield element coaxially arranged with the switch, characterised in that the optical guide is arranged recessed in relation to an inner surface of the ceramic bottom part of the wall and in that the shield element is arranged between the switch and the optical guide.
The present disclosure provides a surge arrester module and a surge arrester including the surge arrester module. The surge arrester module includes a varistor stack, a pair of electrodes and a coupling assembly for coupling the pair of electrodes. The varistor stack includes multiple varistor blocks stacked along a longitudinal direction of the surge arrester module and is sandwiched the pair of electrodes. The coupling assembly includes at least one rod. Each rod includes a rod body extending in the longitudinal direction and at least one sleeve sleeved outside the rod body for attaching the rod to the electrode. The rod body is made of insulating material and includes a first interlocking portion in the form of a circumferential groove, wherein the groove lies within a plane having a normal vector parallel to the longitudinal direction.
The present disclosure relates to a method for controlling a power distribution system comprising distributed charging station(s) for coupling to electrical vehicle(s) (EVs) and a grid interface for coupling the distributed charging station(s) to a power grid. The method comprises determining an EV power setpoint of the EV(s) based on received data; determining a first overload condition based on the EV power setpoint and a first power constraint of the distributed charging station(s); updating the EV power setpoint based on the first overload condition; determining a second overload condition based on the updated EV power setpoint and a second power constraint of the grid interface; redetermining the EV power setpoint based on the updated EV power setpoint and the second overload condition; and controlling the power distribution system based on the redetermined EV power setpoint. The present disclosure also relates to a respective system and power distribution system.
In one embodiment, the semiconductor device (1) comprises a semiconductor body (2), a gate electrode (33) and a first electrode (31), wherein—the semiconductor body (2) comprises a first region (21) which is a source region or an emitter region, and comprises a well region (22) located next to the first region (21), the first region (21) is of a first conductivity type and the well region (22) is of a second conductivity type, —the well region (22) is separated from the gate electrode (33) by a gate insulator layer (4), —the first region (21) is electrically contacted by means of the first electrode (31), —in the first region (21) there is at least one current limiting region (5), and—the at least one current limiting region (5) is a sub-region of the first region (21) with a decreased electrical conductivity.
H10D 62/832 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
14.
PARAMETER ESTIMATION FOR VOLTAGE MEASUREMENTS IN NOISY ENVIRONMENTS
A method for estimating an ON-state resistance of a semiconductor switch in an electric power converter is provided. The method comprises obtaining, from a measurement circuit, an ON-state voltage of the semiconductor switch. The method further comprises obtaining an ON-state current through the semiconductor switch. The method further comprises obtaining a selected frequency, extracting voltage harmonics of the selected frequency from the ON-state voltage, and extracting current harmonics of the selected frequency from the ON-state current. The method further comprises integrating the voltage harmonics over a period of time, to obtain an integrated voltage. The method further comprises integrating the current harmonics over the same period of time, to obtain an integrated current. The method further comprises determining an ON-state resistance estimate of the semiconductor switch based on the integrated voltage and the integrated current.
A control device for at least one electric power system component comprises at least one control circuit, configured to be coupled to a communication interface and the at least one electric power system component. The at least one control circuit is further configured to receive data from the communication interface, set the control device to a local control mode based on the received data if a user of a mobile device is at a first location local to the control device, and set the control device to a remote control mode in response to a request of the user of the mobile device from a second location remote to the control device. A mobile device configured to interact with the control device 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
A method for lifetime prediction and monitoring of a device, and a corresponding system are provided. The method comprises calculating a probability density function over time for an aging variable based on solving equation(s) from an aging model with an End of Life (EOL) boundary condition, wherein the boundary condition includes a first boundary condition and a second boundary condition, wherein the first boundary condition is a no-flux boundary condition and the second boundary condition is an absorbing or partly absorbing boundary condition, measuring an condition related observable of the device; obtaining first data representing measurement of the observable, calculating a likelihood for the aging variable from the first data, updating the calculated probability density function of the aging variable based on the likelihood, and generating a signal indicating a health prediction of the device based on the probability density function, the aging model and the EOL boundary condition.
In one embodiment, the semiconductor device (1) comprises a semiconductor body (2), a gate electrode (33) and a first electrode (31), wherein—the semiconductor body (2) comprises a first region (21) which is a source region or an emitter region, and comprises a well region (22), the first region (21) is of a first conductivity type and the well region (22) is of a different, second conductivity type,—the well region (22) is separated from the gate electrode (33) by a gate insulator layer (4),—the first region (21) is electrically contacted by means of the first electrode (31) which is a source electrode or an emitter electrode,—in the first region (21) there is at least one current limiting region (5), and—the at least one current limiting region (5) is of at least one electrically insulating material.
H10D 62/60 - Impurity distributions or concentrations
H10D 62/832 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
There is disclosed herein a tensioner device for arranging radially around a composite rod between a first anchor point of the composite rod and a first pushing surface arranged between the first and second anchor point of the composite rod. The tensioner device is configured to tension the composite rod by applying pressure between the first anchor point and the first pushing surface, and comprises a first part for abutting the first anchor point, a second part for abutting the first pushing surface, and a third part arranged between the first and second parts, and engaging at least one thereof so as to translate a rotational motion of said third part into a linear motion of said at least one of the first and second parts away from the third part, to thereby apply the pressure between the first anchor point and the first pushing surface.
The present disclosure relates to a method for energizing a modular multilevel converter (100) comprising converter valves (101), each converter valve having a plurality of interconnected cells (102), wherein each cell comprises a plurality of power electronic switches (105, 106, 107, 108) in a full-bridge arrangement, a chargeable element (109), and a plurality of gate drive units (118), one gate drive unit for each power electronic switch. The method includes: providing power to the modular multilevel converter from an external power supply (S201); powering the cells, thereby charging the chargeable elements of the cells (S202); generating, when a cell voltage caused by said charging exceeds a first threshold voltage level, a cell sub-ready signal for that cell (S203); generating, when at least a predetermined minimum number of cells have generated the sub-ready signal, a sub-ready_for_operation signal (S204); and running a deblocking sequence comprising closing a first power electronic switch (105) in all cells to electrically configure the cells to be continuously charged as a half-bridge cells, and keep the first power electronic switch closed until the cell voltage has reached a converter operable voltage, which is higher than a second threshold voltage (5205).
H02M 7/219 - 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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
20.
SYSTEM AND METHOD FOR PEAK LOAD POWER MANAGEMENT FOR CHARGING OF AN ELECTRIC VEHICLE FLEET AND/OR OPERATION OF A MICROGRID
Operators typically utilize techno-economic means to set peak power demand in power infrastructure sites, such as power depots and microgrids. However, conventional means tend to either produce sub-optimal values of peak power demand or be too computationally expensive to be performed in a real-time or scalable manner. Accordingly, disclosed embodiments utilize a sliding time window to continuously or periodically determine peak power demand in past, current, and future portions of a current time period. These embodiments are able to determine an optimal peak power demand for the current time period, while remaining computationally feasible for real-time performance and being scalable with the complexity of optimization.
An arrangement, which is connectable to an alternating current (AC) power transmission system, comprising a static synchronous compensator device having a converter unit and an energy storage unit connected with the converter unit; a power absorption device; and a control device connected with the static synchronous compensator device and with the power absorption device. The control device is configured to control the static synchronous compensator device to exchange power with the AC power transmission system, and to control the power absorption device in dependence of a state of charge of the energy storage unit and a state of the power transmission system. The control device is configured to determine whether there is a need to absorb active power from the AC power transmission system in excess of what the static synchronous compensator device is absorbing and, in case of a need, control the power absorption device to absorb active power.
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
22.
VEGETATION MANAGEMENT SYSTEM AND VEGETATION MANAGEMENT METHOD
It is difficult to predict an influence of vegetation on a feature with high accuracy. Accordingly, in an embodiment, a vegetation management system, that manages an influence of vegetation on a predetermined feature, includes: an acquisition unit that acquires remote sensing image data of the vegetation; a classification unit that classifies, based on the remote sensing image data, a tree included in the vegetation in accordance with growth activity representing potential for future growth; a growth prediction unit that predicts growth of the tree based on a classification result obtained by the classification unit; a risk determination unit that determines risk of contact with the predetermined feature; and a visualization unit that outputs and visualizes a determination result obtained by the risk determination unit.
G06V 10/62 - Extraction of image or video features relating to a temporal dimension, e.g. time-based feature extractionPattern tracking
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
23.
OBTAINING STATE OF HEALTH AND STATE OF CHARGE OF A BATTERY
The present disclosure relates to a method for obtaining a state of health, SOH, and state of charge, SOC, of a battery. The method comprises obtaining real-time data of the battery, the real time data including voltage, current, temperature, initial SOC, and an initial SOH, obtaining battery parameters from a look up table, LUT, based on the real-time current, temperature, initial SOC, and an initial SOH and obtaining a new SOC and new SOH based on the battery parameters, real-time current, real-time voltage, initial SOC, and initial SOH. The disclosure further relates to a corresponding device, system and computer-readable storage medium.
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/388 - Determining ampere-hour charge capacity or SoC involving voltage measurements
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
24.
MANUFACTURING METHOD FOR A POWER SEMICONDUCTOR DEVICE AND POWER SEMICONDUCTOR DEVICE
A manufacturing method for a power semiconductor device, comprising forming at least one insulating layer on a surface of a crystalline growth substrate, the at least one insulating layer comprising at least one cavity extending in a lateral direction within the at least one insulating layer; selectively growing a wide bandgap, WBG, semiconductor material within the cavity to form a lateral epi-layer, wherein a surface area of the growth substrate exposed through at least one passage formed between the at least one cavity and the growth substrate is uses as a seed area for epitaxially growing the WBG semiconductor material; and forming at least one semiconductor junction, in particular a pn junction, a np junction or a Schottky junction, within or at an end of the selectively grown WBG semiconductor material.
Method of controlling a distribution network and a microgrid controller adapted for the method. The distribution network comprises assets in a first part and a second part, which parts are selectively connected to each other into an interconnected state at a connection point (PCC). The method comprises monitoring and controlling the assets of the distribution network. In a first control mode, the first part is controlled by a distribution network controller and the second part is controlled by the microgrid controller. Especially, the method includes selecting between controlling the distribution network in the interconnected state in accordance with the first control mode, and controlling the distribution network in the interconnected state in accordance with a second control mode, in which second control mode the assets of the both the first part and the second part are controlled by the distribution network controller.
H02J 3/06 - Controlling transfer of power between connected networksControlling sharing of load between connected networks
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
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
26.
FAULT LOCATION DETERMINATION IN A POWER TRANSMISSION SYSTEM
Fault location determination in a power transmission system is described. Samples of voltage and current measured are obtained for each phase at a terminal. A first equivalent reactance value based on the samples of voltage and current is calculated. Further, based on the calculated equivalent reactance value a first fault location is determined.
A method comprises providing a semiconductor body with a top side. A mask is applied on the top side of the semiconductor body, wherein the mask comprises at least one first section and at least one second section. The at least one second section is laterally adjacent to the at least one first section. The mask is thicker in the at least one second section than in the at least one first section. A channel region of a first conductivity type is formed in the semiconductor body in the area of the at least one first section. Forming the channel region comprises implanting first-type dopants through the top side into the semiconductor body. An auxiliary layer is deposited on a lateral side of the at least one second section, the lateral side facing towards the at least one first section.
H10D 62/10 - Shapes, relative sizes or dispositions of the regions of the semiconductor bodiesShapes of the semiconductor bodies
H10D 84/00 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
28.
POWER SEMICONDUCTOR DEVICE AND METHOD FOR PRODUCING A POWER SEMICONDUCTOR DEVICE
A power semiconductor device comprises a semiconductor body with a top side, and a main electrode and an adjacent gate electrode thereon. The semiconductor body comprises a drift layer of a first conductivity type, a base region of a second conductivity type between the drift layer and the top side, a contact region of the first conductivity type between the drift layer and the top side. The contact region adjoins the base region and the top side. The semiconductor body comprises a drift region of the first conductivity type arranged next to and adjoining the base region. The main electrode is in electrical contact with the contact region. The gate electrode at least partially covers a channel portion of the base region, which lies between the contact region and the drift region. At least one of the contact region and the drift region projects beyond the base region.
According to an embodiment, the power module (100) comprises a power semiconductor device (1) and a connection element (2) for electrically connecting the power semiconductor device. Furthermore, the arrangement comprises a sensing element (3) for measuring a measurand. A bond section (21) of the connection element is bonded to and electrically connected with the power semiconductor device. The sensing element is mounted on the connection element and spaced from the bond section.
An apparatus comprising at least one integrated circuit configured to cause the apparatus to: determine delay information and/or jitter information for a first plurality of data units in a first data transmission, the first plurality of data units in the first transmission being received by a receiving device via different connections from a transmitting device; in dependence on the determined delay information and/or jitter information for the first plurality of data units, determine for a second transmission of a second plurality of data units, which one or more of the second plurality of data units is to provide redundant data, the second transmission to be received by the receiving device via the different connections between the transmitting device and the receiving device; and cause information about which one or more of the second plurality of data units is to provide redundant data, to be provided to the transmitter.
To process monitoring data during operation of an electric power system, a processing system controls a human machine interface to output an alarm panel, enable an operator input to select a list element from the alarm list, and, responsive to the operator input, cause at least one control action to be performed. The alarm panel comprises several icon sequences for several alarms.
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
G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
32.
PROCESSING SYSTEM AND METHOD FOR AN ELECTRIC POWER SYSTEM, AND MACHINE-READABLE INSTRUCTION CODE
To process monitoring data during operation of an electric power system, a processing system controls a human machine interface to output an alarm list, enable an operator input to select a list element from the alarm list, and, responsive to the operator input, enlarge the list element and concurrently shift one or several other list elements of the alarm list to preserve an order of the alarm list.
G08B 29/02 - Monitoring continuously signalling or alarm systems
G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
CURRENT LIMITING FUSE ASSEMBLY, TRANSFORMER ASSEMBLY COMPRISING A CURRENT LIMITING FUSE ASSEMBLY, AND SHIELDING ARRANGEMENT CONFIGURED TO ELECTRICALLY AND MECHANICALLY SHIELD A CURRENT LIMITING FUSE
A current limiting fuse assembly includes a current limiting fuse having a longitudinal axis, and a shielding arrangement configured to electrically and mechanically shield the current limiting fuse. The shielding arrangement includes a first part and a second part. The first part includes a cylindrical portion extending along a first axis between a first end and a second end, and a flange portion provided at the second end. The second part includes a cylindrical portion extending along a second axis between a first end and a second end, and a flange portion provided at the second end. The second part is positioned and oriented relative to the first part such that the second end of the second part faces the second end of the first part. The second end of the second part is arranged at a distance from the second end of the first part.
H01F 27/40 - Structural association with built-in electric component, e.g. fuse
H01H 85/02 - Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive Details
35.
TRANSFORMER TANK FOR A SHELL TYPE TRANSFORMER, SHELL TYPE TRANSFORMER AND METHOD FOR CLAMPING A MAGNETIC CORE OF A SHELL TYPE TRANSFORMER
A clamping arrangement for exerting a clamping force on a magnetic core of a shell type transformer includes a plunger sleeve arranged inside a beam in the transformer and a plunger including a first end that is movable along a longitudinal axis to exert the clamping force, with a value of the clamping force being adjustable based on a position of the plunger with respect to the beam. The clamping arrangement further includes a screw device comprising a screw arranged at a first end of the plunger sleeve in contact with a second end of the plunger to move the plunger along its longitudinal axis. The screw is turnable in the thread of the plunger sleeve to move with respect to the plunger sleeve along the longitudinal axis and to set a part of the screw that protrudes the sleeve interior.
There is disclosed herein a method to operate a system comprising an energy storage system (ESS) and a converter. The ESS being connected to the converter such that a DC-side of the converter forms DC terminals between which at least one string of modules of the ESS is connected. The method comprises receiving a bypass request to bypass at least one module in the ESS, based on a total number of modules to be bypassed exceeding a number of redundant modules, controlling the converter to reduce the terminal voltage of the ESS; and after reducing the terminal voltage of the ESS, bypassing the module. There is further disclosed herein a system comprising a central controller performing said method.
An energy storage unit comprises a first unit terminal and a second unit terminal, an energy storage element having a first element terminal and a second element terminal, and a protection circuit. The second element terminal of the energy storage element is connected with the second unit terminal. The protection circuit comprises a first pyrotechnic switch connected between the first unit terminal and the first element terminal and a second pyrotechnic switch connected between the first unit terminal and the second unit terminal.
A power semiconductor device comprises a semiconductor body with a top side, and a main electrode and an adjacent gate electrode thereon. The semiconductor body comprises a drift layer of a first conductivity type, a base region of a second conductivity type between the drift layer and the top side, a contact region of the first conductivity type between the drift layer and the top side. The contact region adjoins the base region and the top side. The semiconductor body comprises a drift region of the first conductivity type arranged next to and adjoining the base region. The main electrode is in electrical contact with the contact region. The gate electrode at least partially covers a channel portion of the base region, which lies between the contact region and the drift region. At least one of the contact region and the drift region projects beyond the base region.
The bushing includes a plurality of electrically conductive elements and at least one ultrasonic welding joint. The at least one ultrasonic welding joint is formed between one electrically conductive element and another electrically conductive element and mechanically and electrically connects the electrically conductive elements with each other.
B23K 20/10 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
H01B 19/00 - Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
An electrical switch for an on-load tap changer, said electrical switch comprising: at least three electrical contacts connected to a respective electrical conductor, a switch means configured to be movable between a plurality of positions, the switch means in each respective position physically contacting a respective combination of said electrical contacts to provide electrical contact between the electrical contacts in each respective combination of electrical contacts, the switch means including two electrically interconnected contacts or contact surfaces provided on a movable carrier element mounted on the operating member for movement along a said arcuate path, and the contacts or contact surfaces being provided at a same radial distance from the rotational axis and with a same spacing as the electrical contacts of each respective combination of electrical contacts.
A protection arrangement for a transformer includes at least one fault interrupter configured to be coupled to at least one winding of the transformer, to protect the transformer from over-current faults, and a voltage protector configured to be coupled to the at least one winding, to protect the transformer from transient over-voltage events caused by the at least one fault interrupter.
H02H 7/04 - 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 transformers
H02H 1/00 - Details of emergency protective circuit arrangements
43.
Power module comprising a semiconductor module component and an alignment part, and method for forming the power module
A power module having an alignment part fixed on a lateral top surface (10T) of a semiconductor module component. The semiconductor module component has at least one terminal which—at least in places—is orientated vertically with respect to the lateral top surface of the semiconductor module component and for the purpose of alignment along lateral directions, is located at least partly within the at least one recessed portion. Along a vertical direction, the at least one terminalprotrudes beyond the at least one recessed portion. The at least one recessed portion is located on a side surface of the alignment part, wherein the at least one recessed portion is a vertical slot being an open recess on the side surface of the alignment part, and wherein the slot is not a through-hole being completely surrounded by inner walls of the at least one recessed portion in lateral directions.
H01L 23/544 - Marks applied to semiconductor devices, e.g. registration marks, test patterns
H01L 21/50 - Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the groups or
H01L 23/053 - ContainersSeals characterised by the shape the container being a hollow construction and having an insulating base as a mounting for the semiconductor body
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
H01L 23/552 - Protection against radiation, e.g. light
H01L 25/07 - 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 not having separate containers the devices being of a type provided for in subclass
H01L 25/10 - 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
H01R 12/58 - Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
H05K 7/14 - Mounting supporting structure in casing or on frame or rack
44.
Manufacturing method for a power semiconductor device and power semiconductor device
The present disclosure relates to a manufacturing method for a power semiconductor device (1, 40), comprising: forming multiple growth templates on a carrier substrate (2), comprising at least a first plurality of hollow growth templates (18) and a second plurality of hollow growth templates (28); selectively growing a first sequence of differently doped wide bandgap semiconductor materials in each one of the first hollow growth templates (18), thereby forming a corresponding plurality of first semiconductor structures (5) of a first type, in particular n+/p−/n−/n+ structures; and selectively growing a second sequence of differently doped wide bandgap semiconductor materials in each one of the second hollow growth templates (28), thereby forming a corresponding plurality of second semiconductor structures (6) of a second type, in particular n+/n−/p−/n+ structures. The disclosure further relates to a power semiconductor device (1, 40) comprising a carrier substrate (2), at least one dielectric layer (4, 27, 31), a plurality of first semiconductor structures (5) of a first type, and a plurality of second semiconductor structures (6) of a second type formed within the at least one dielectric layer (4, 27, 31).
H10D 84/83 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or , e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
H02M 7/5387 - 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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
H10D 62/10 - Shapes, relative sizes or dispositions of the regions of the semiconductor bodiesShapes of the semiconductor bodies
H10D 62/832 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
H10D 64/27 - Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
The disclosure relates to a winding for a phase winding of a transformer. The winding includes a plurality of winding portions arranged along a coil axis. The plurality of winding portions include a first winding portion arranged at a first end of the winding and a second winding portion arranged at a second end of the winding. The winding further includes at least a third winding portion arranged along the coil axis between the first winding portion and the second winding portion. The first winding portion and the second winding portion have a first winding portion stiffness as seen along the coil axis and the at least third winding portion has a second winding portion stiffness as seen along said coil axis. The second winding portion stiffness is greater than the first winding portion stiffness. The third portion has a third portion center point on the coil axis, equidistantly spaced at a distance from the first winding portion and from the second winding portion, which third portion center point is located closer to the first end of the winding than the winding center point.
A method of detecting earth faults, at a frequency converter connected between a first grid operating at a first frequency and a second grid operating at a different, second frequency, comprises determining a common mode voltage at the side of the converter connected to the second grid, determining levels of components of the first frequency and the second frequency in the common mode voltage, and determining if the levels are above pre-set threshold levels, indicating that an earth fault is present at the side of the converter connected to the grid operating at the respective frequency.
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
H02H 1/00 - Details of emergency protective circuit arrangements
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
47.
STATE ESTIMATION FOR A POWER SYSTEM USING PARAMETERIZED POTENTIAL FUNCTIONS FOR EQUALITY CONSTRAINTS
Prior methods of state estimation, based on a constrained optimization problem with equality and/or inequality constraints, rely on penalty-based heuristics which can produce very large weight values, resulting in ill-conditioning of the gain matrix. Disclosed embodiments of state estimation convert the constrained optimization problem into an unconstrained convex optimization problem in which violated equality and/or inequality constraints are represented as parameterized potential functions, each comprising a center-of-attraction parameter. This unconstrained convex optimization problem can be iteratively formed, using successively updated values for the center-of-attraction parameters, and solved, until no equality and/or inequality constraints are violated, to produce a final estimated state. This final estimated state may then be used to control the system being monitored, such as a power system.
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
G06F 17/11 - Complex mathematical operations for solving equations
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
48.
METHOD FOR CONTROLLING A TRANSFORMER SUBSTATION BY A CONTROL DEVICE ARRANGED REMOTE FROM THE TRANSFORMER, SYSTEM, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE STORAGE MEDIUM
A method is disclosed for controlling a transformer substation within a first grid by a control device of a remotely arranged converter connected to the first grid and a second grid. The method may comprise providing measurement information, to the control device, being characteristic of at least one measured electrical property at a location of the transformer substation, and by the control device, determining an estimation information being characteristic of at least one estimated electrical property at the location of the transformer substation based on a model comprising the first grid and a converter, determining an estimated delay time of the estimation information being characteristic of a delay time dependent on a distance between the location of the transformer substation and the converter, and determining a correction information dependent on the measurement information, the estimation information, and the estimated delay time for controlling the transformer substation.
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 3/34 - Arrangements for transfer of electric power between networks of substantially different frequency
The present disclosure relates to a method for monitoring a plurality of heaters and/or determining water ingress in at least one substation. The method includes receiving, by a controller from a first sensor a first at least one environmental condition of a first section of the at least one substation; receiving, by the controller from a second sensor a second at least one environmental condition of a second section of the at least one substation; and providing a warning signal, by the controller, according to a difference between the first at least one environmental condition and the second at least one environmental condition. The present disclosure also relates to a respective controller and system.
G01M 3/18 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for valves
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
50.
APPARATUS AND METHOD FOR SUPPLYING POWER TO OR ABSORBING POWER FROM A LOAD
An apparatus is configured to supply power to a load or absorb power from the load, the load being connected or connectable to a load conductor. The apparatus comprises a power supplying and/or absorbing device, configured for selectively supplying power to the load conductor or absorbing power from the load conductor, and a control unit configured to control the power supplying and/or absorbing device. The control unit is configured to determine, based on at least one value indicative of voltage of the load conductor and a virtual impedance of the power supplying and/or absorbing device, a voltage reference value for the power supplying and/or absorbing device, and control the power supplying and/or absorbing device to supply power to the load conductor, and thereby supply power to the load, or absorb power from the load conductor, and thereby absorb power from the load, based on the determined voltage reference value.
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
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
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
51.
METHOD, DEVICE, AND SYSTEM FOR ADAPTING DISTANCE PROTECTION AGAINST REACTANCE EFFECT DUE TO REMOTE INFEED AND FAULT RESISTANCE
The present disclosure relates to a method for controlling a distance protection system, as well as a respective device and system for performing the method. Measurements are received. The measurements comprise current and/or voltage measurements at a first position along a transmission line for an electrical power system. A first impedance is computed from the received measurements. A fault location is determined from the computed first impedance and a first impedance boundary. Responsive to the determined fault location, a second impedance is computed. The fault location is redetermined from the computed second impedance and the first impedance boundary. The distance protection system is controlled based on the determined fault location or the re-determined fault location.
H02H 7/22 - 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 distribution gear, e.g. bus-bar systemsEmergency 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 switching devices
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02H 1/00 - Details of emergency protective circuit arrangements
52.
REDUCING CLASS IMBALANCE IN MACHINE-LEARNING TRAINING DATASET
Class imbalance in a training dataset may negatively impact the accuracy of a machine-learning model in classifying rare events that are underrepresented in the training dataset. Training datasets comprising time-series data present a unique challenge. Accordingly, resampling techniques for up-sampling and/or down-sampling a training dataset of time series are disclosed. The up-sampling may respect the temporal correlation of time samples in the time series, while generating synthetic time series that mimic the feature values of time series belonging to the minority class. Down-sampling may be used to fine-tune the ratio of time series belonging to the minority class to the time series belonging to the majority class.
A system comprises at least one transformer for galvanically isolating the system from an electrical power grid and adapting an input voltage level associated with an alternating current received from the electrical power grid. A converter unit connected to the transformer is configured to convert the alternating current into a direct current output between a positive pole and a negative pole. The converter unit comprises at least one modular multilevel converter comprising at least two converter branches. Each branch comprises a converter cell and an inductor. One branch is connected from an AC line of the transformer to the positive pole and another branch is connected from the AC line to the negative pole. An electrolyser unit may be arranged between the positive and negative poles, and a control unit may be configured to control the direct current output based on a reference value.
H02M 7/219 - 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 triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
C25B 9/65 - Means for supplying currentElectrode connectionsElectric inter-cell connections
C25B 9/70 - Assemblies comprising two or more cells
A device comprising a suppression unit and a measurement circuit, wherein the suppression unit comprises at least two parallel connected protection branches connected between a surge arrester and ground. The at least one protection branch comprises at least one TVS diode and at least one impedance, connected in series with the at least one TVS diode. The suppression unit is configured to divert leakage current through the measurement circuit and bypass the measurement circuit and lead surge current to ground, during a surge event to protect the measurement circuit.
A device including a diversion circuit and a harvesting circuit, wherein the diversion circuit includes at least two parallel connected protection branches between a surge arrester and ground. The at least two protection branches include at least one TVS device and at least one impedance connected in series with the at least one TVS device. The diversion circuit is configured to divert leakage current through the harvesting circuit and bypass the harvesting circuit and lead surge current via the at least one parallel connected protection branch to ground, during a surge event, to protect the measurement circuit.
An apparatus is configured to supply power to a load connected with a power system, which load is connected/connectable to a load conductor. The apparatus comprises a reactor connected/connectable between the power system and the load conductor and a power supplying and/or absorbing device for selectively supplying power to or absorbing power from the load conductor. The apparatus comprises a processing unit configured to, based on values indicative of voltage supplied by the power system and voltage of the load, respectively, at a plurality of time instants determine primary and secondary side voltage differences and based thereon determine a virtual impedance of the device. The apparatus comprises a control unit configured to, based on value(s) indicative of voltage of the load conductor and the virtual impedance, determine a voltage reference value for the device based on which device is controlled to supply power to the load.
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
57.
POWER DEVICE AND METHOD FOR ASSEMBLING A POWER DEVICE
According to an embodiment, a power device comprises at least two power semiconductor modules and a carrier having a top side and an opposite bottom side. Power semiconductor modules are mounted on the carrier and are thermally connected to the carrier. At least two power semiconductor modules are arranged in an overlapping configuration such that at least one power semiconductor module being mounted on the top side and at least one power semiconductor module being mounted on bottom side at least partially overlap with each other when seen in plan view of the top side.
H01L 23/46 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
H01L 25/00 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices
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
The invention relates to a metal enclosed circuit breaker including
a first arcing contact and a second arcing contact, whereby the first arcing contact and/or the second arcing contact is axially movable along a switching axis, thereby forming, during a breaking operation, an arc between the first arcing contact and the second arcing contact in an arcing volume, and
an exhaust tube arranged in extension to the first arcing contact along the switching axis, whereby
the exhaust tube includes a closed rear end opposite to the first arcing contact connectable to a rod for actuating the first arcing contact,
the exhaust tube includes a barrier element arranged within the exhaust tube defining a dead exhaust tube volume between barrier element and the rear end, and
the barrier element includes a hole extending through the barrier element.
H01H 33/70 - Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
H01H 33/74 - Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber wherein the break is in gas
H01H 33/90 - Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by, or in conjunction with, the contact-operating mechanism
59.
CONDITION MONITORING OF ELECTRONIC COMPONENTS IN ELECTRICAL POWER SYSTEMS
A computer-implemented method is disclosed for monitoring a converter comprising a plurality of series-connected submodules or an energy storage system (ESS) comprising a plurality of series-connected energy storage units (ESUs). Each submodule or ESU has electrical components arranged in a same circuit topology. The method comprises determining, for each electrical component in a group, a component value for an electrical characteristic, the group comprising a corresponding electrical component from each submodule/ESU, in the plurality of submodules/ESUs, having a same position in the circuit topology of their respective submodule/ESU. The method further comprises determining, for the group of electrical components, a group value for the electrical characteristic. The method then comprises determining a deviation of the component value from the group value, for each electrical component in the group, and determining a health status for an electrical component of the group based on the determined deviation.
H02M 7/483 - Converters with outputs that each can have more than two voltage levels
H02M 7/49 - Combination of the output voltage waveforms of a plurality of converters
H02M 7/521 - 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 using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
The present disclosure relates to a system including a transformer which includes at least one first winding wound around at least one core and at least one second winding wound around the at least one first winding. The system further includes at least one voltage sensor configured and arranged to sense a voltage through the at least one second winding by capacitive coupling.
There is disclosed herein an energy storage system comprising an energy storage circuit, comprising a string of interconnected energy storage units configured to store electrical energy and provide power to a power grid using said stored electrical energy. The ESS further comprises an auxiliary module configured to provide auxiliary functions for at least one of the plurality of energy storage units, and an auxiliary power supply circuit for providing power to the auxiliary module from a grounded power source. The auxiliary power supply circuit is configured to galvanically isolate the energy storage circuit from the grounded power source, thereby preventing electrical arcing between the ESS, which may be at a high voltage, and ground at the grounded power source.
H02J 11/00 - Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
62.
Adaptive power oscillation damping controller for a grid-forming converter
The present disclosure provides a method and a control unit for controlling a power unit connected at a connection point to a power grid. The method comprises obtaining a power oscillation damping (POD) signal from a POD controller, based on a power oscillation in the power grid. A gain value may be determined based on a difference between a first voltage measurement at the connection point and a first voltage reference, or an estimated short circuit ratio of the power grid. The POD signal may be added to an input signal of a power unit regulator to obtain an intermediate reference signal. A combined reference signal may be determined based on adding the POD signal, multiplied by the gain value, to the intermediate reference signal. The power unit may be operated using the determined combined reference signal to damp the oscillation in the grid.
The disclosure relates to a method for monitoring a vacuum on-load tap changer including determining a total main vacuum interrupter opening time as a time elapsed between a first point in time and a second point in time, a total resistor vacuum interrupter opening time as a time elapsed between the third point in time and the fourth point in time, a circulating current time as a time elapsed between the second point in time and the third point in time, and/or a switch time as the sum of the total main vacuum interrupter opening time, the total resistor vacuum interrupter opening time and the circulating current time.
A tap changer arrangement including a tap changer housing having a longitudinal extension along a first axis, wherein the tap changer housing comprises a first interface part fixedly attachable to a support structure of a transformer tank, a second interface part at a distal part of the tap changer housing, and an intermediate housing part arranged between the first interface part and the second interface part, the first interface part, the intermediate housing part and the second interface part being arranged on the first axis. The tap changer arrangement includes a plurality of support elements that is mechanically connected to the second interface part and either mechanically connected to the first interface part or to a support structure of the transformer tank, the support elements being configured to exert a compressive force on the intermediate housing part from the first interface part and from the second interface part.
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
A method for determining a type of fault in a power line is provided. The method comprises obtaining voltage and current measurements at a measurement point of the power line. The method further comprises determining transient energies over a first time period for a number of phase-to-ground loops and phase-to-phase loops of the power line, based on the obtained voltage and current measurements. The method further comprises determining transient energy ratios for the phase-to-ground loops and phase-to-phase loops. The method further comprises comparing the transient energy ratios with thresholds corresponding to the phase-to-ground loops or phase-to-phase loops and determining a type of fault based on the comparison.
An anti-rebound protection device and a circuit breaker comprising the same is disclosed. The anti-rebound protection device for the circuit breaker includes an operating mechanism. The operating mechanism of the circuit breaker includes a housing, a main shaft arranged in the housing, and an output lever connected to the main shaft. The anti-rebound protection device includes a control cam; a control lever being rotatable relative to the housing, and provided with a first stopper for abutting against the control cam; and a locking mechanism comprising a locking member rotatably connected to the output lever and a second stopper provided on the control lever.
The semiconductor device comprises a semiconductor body with a top side, a main electrode on the top side and a gate electrode. The semiconductor body comprises a drift layer of a first conductivity type, a first base region of a second conductivity type, a second base region of the first conductivity type, a first contact region of the first conductivity type and a second contact region of the second conductivity type. The second base region has a greater doping concentration than the drift layer. The first contact region adjoins the first base region and the top side. The second contact region adjoins the second base region and the top side. The main electrode is in electrical contact with the first and the second contact region. In a first lateral direction, at least a portion of the gate electrode is arranged between the first contact region and the second contact region.
H10D 64/00 - Electrodes of devices having potential barriers
H10D 84/82 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or , e.g. integration of IGFETs of only field-effect components
A turret assembly comprises a turret configured to contain pressure created and including a circumferential outer surface, an elbow portion configured to couple to a housing assembly, and a distal portion extending distally from the elbow portion; and a coupling assembly configured to further couple the turret to the housing assembly, the coupling assembly including a reinforcement support configured to substantially surround and contact the circumferential outer surface of the turret.
Device for measuring an alternating (AC) leakage current though a conductor, whereby the device includes: a conversion circuit including a magnetic core and a leakage current measurement circuit. The device includes a synchronous rectification circuit that includes a plurality of metal oxide semiconductor field effect transistors (MOSFETs). The conversion circuit is configured so that the conductor is arranged to pass through, or wind around the magnetic core, and the conversion circuit includes a plurality of pairs of secondary windings or a single secondary winding with a plurality of taps, whereby at least one first pair of secondary windings or at least one first pair of taps is configured to apply a voltage to the plurality of MOSFETs, and at least one second pair of secondary windings or at least one second pair of taps is connected to the synchronous rectification circuit.
Fault classification and zone identification in a power transmission system are described. Voltage or current measurements are obtained at a terminal of the transmission line in each of the three phases measured during a fault. Modal transformations are performed on voltage or current measurements to obtain traveling wave signals with reference to each of the three phases. Based on the magnitude of the traveling wave signals the fault is classified.
H02H 1/00 - Details of emergency protective circuit arrangements
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02H 7/22 - 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 distribution gear, e.g. bus-bar systemsEmergency 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 switching devices
71.
TRANSISTOR, POWER ELECTRONIC SWITCHING DEVICE AND METHOD FOR MANUFACTURING A TRANSISTOR
A wide bandgap semiconductor power transistor comprising an epitaxial layer of a first conductivity type, at least one well region of a second conductivity type formed in a selected area of the epitaxial layer, at least one terminal region, in particular a source region, of the first conductivity type formed in or adjacent to the at least one well region, at least one terminal electrode, in particular a source electrode, formed at least partly on a surface of a first part of the at least one terminal region, and at least one resistive region formed within the at least one terminal region, the at least one resistive region comprising amphoteric impurities.
H10D 62/13 - Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
H10D 62/60 - Impurity distributions or concentrations
H10D 62/832 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
H10D 62/834 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge further characterised by the dopants
A high voltage gas insulated switchgear, HV GIS, includes
a plurality of disconnector modules associated to each phase and filled with an insulating gas, each including a disconnector for connecting a feeder connection to a main bus bar, the disconnector modules interconnected with the main bus bar associated to each phase and extending through all disconnector modules, and
a plurality of auxiliary modules associated to each phase, filled with the insulating gas and interconnected with an auxiliary bus bar configured for increasing a current carrying capability of the HV GIS and associated to each phase and extending through all auxiliary modules,
at least two of the disconnector modules and auxiliary modules of the respective phase including a coupling connection connecting the main bus bar and the auxiliary bus bar between the respective disconnector module and the respective auxiliary module.
There is disclosed herein a method for fault-response in an energy storage system (ESS), wherein the ESS comprises a string of series-connected energy storage cabinets (110), and the string of energy storage cabinets comprises at least two energy storage cabinets (110A, 110B) and a discharge resistor (150) arranged such that the discharge resistor is selectively connectable to each or both of the two cabinets (110A, 110B). The method comprises detecting a failure of a first cabinet (110A) of the two cabinets (110A, 110B) and, in response to detecting the failure of the first cabinet (110A), selectively electrically connecting the discharge resistor (150) to the first cabinet (110A), thereby discharging electrical energy stored in the first cabinet (110A) via the discharge resistor (150).
The present disclosure relates to a method for power control of a common power converter including a plurality of power converters. The method includes: determining a number of power converters of the plurality of power converters to be activated; determining, based on the at least one electrical parameter of the plurality of power converters and/or the determined number of power converters to be activated, a ratio of a number of at least one power converter of a first type of the plurality of power converters and a number of at least one power converter of a second type of the plurality of power converters; and operating the plurality of power converters based on the determined number of power converters and the ratio. The present disclosure also relates to a corresponding controller and system.
H02M 3/00 - Conversion of DC power input into DC power output
H02M 3/335 - 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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
The disclosure relates to a transformer arrangement comprising a transformer which comprises at least one phase winding. The phase winding has coil turns around a coil axis. The transformer arrangement further comprises a transformer tank having walls forming an enclosure in which the transformer is arranged. The enclosure contains an incompressible medium in which the transformer is immersed. A screen is arranged in the transformer tank, between the walls of the transformer tank and the at least one phase winding of the transformer. The screen has an inner, transformer-facing, surface and an outer, wall-facing, surface. The screen is further arranged distanced from the at least one phase winding. The transformer has lateral sides parallel with the coil axis. The screen has at least one lateral part aligned with the lateral sides of the transformer, and wherein the at least one lateral part of the screen circumscribes the transformer.
A method for estimating a physical quantity of a static electric induction device assembly. The static electric induction device assembly comprises an enclosure, a static electric induction device and a fluid whereby the enclosure accommodates the static electric induction device and the fluid such that the static electric induction device is at least partially submerged into the fluid. The method comprising using measured physical property data obtained from a measurement assembly. The measured physical property data comprising information indicative of a physical property in each one of a plurality of different locations of the static electric induction device assembly as a function of time for a reference time range when the static electric induction device assembly is in a condition in which at least a portion of the static electric induction device influences the physical property during at least a portion of the reference time range.
H10D 62/832 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
The disclosure relates to a transformer arrangement comprising a transformer which comprises at least one phase winding. The phase winding has coil turns around a coil axis. The transformer arrangement further comprises a transformer tank having walls forming an enclosure in which the transformer is arranged. The enclosure contains an incompressible medium in which the transformer is immersed. A screen is arranged in the transformer tank, between the walls of the transformer tank and the at least one phase winding of the transformer. The screen has an inner, transformer-facing, surface and an outer, wall-facing, surface. The transformer tank has a first wall extending transversely to a first axis adjacent to a first end of the transformer and an opposite second wall extending transversely to the first axis, adjacent to a second end of the transformer.
The present disclosure relates to an enclosure for an electric device in a high voltage electric field, the enclosure including at least one top element and at least one corresponding bottom element extending circumferentially from a center portion, wherein the top and the bottom elements are plate-like elements disposed substantially parallel to each other at a predetermined distance to provide a space therebetween. The top and bottom elements are each electrically connected at one end at the center portion, and in electrical contact at respective circumferential ends to form at least a portion of the enclosure. The enclosure is at least partially constructed of a conductive material. At least two slots are provided in the enclosure extending from the center portion to a circumference to separate different portions of the enclosure.
A bent unit and a gas-insulated transmission line having the same are provided. The bent unit includes: a bent housing including a cylindrical first housing section and a cylindrical second housing section, the first housing section and the second housing section being connected with each other at an angle α; a tubular bent conductor arranged in the bent housing; and an insulator arranged in the bent housing to support the bent conductor. The bent conductor includes a straight conductor section and a bent conductor section which are formed separately and connected with each other. The straight conductor section extends along the first housing section. The bent conductor section extends along the first housing section and the second housing section and is bent to have the angle α.
The present disclosure relates to a high voltage bypass device, comprising a cavity, a trigger element arranged in the cavity, a reservoir filled with a conductive, flowable material, and a shutter separating the cavity and the reservoir. The trigger element is connected to a first terminal and a second terminal of the high voltage bypass device. The shutter is configured to open a passage between the cavity and the reservoir in case the trigger element is triggered by an overvoltage condition, such that the conductive, flowable material at least partially fills the cavity, thereby forming a conductive path from the first terminal to the second terminal. The present disclosure further relates to a voltage source converter (VSC), in particular a modular multi-cell converter, and an operating method for a high voltage bypass device.
A solid dielectric surge arrester includes a hermetically sealed composite encased module assembly. The module assembly includes at least one metal oxide varistor (MOV) block with an outer circumferential surface, and a material applied to the outer circumferential surface. The material includes multiple layers to allow the module assembly to withstand a bending moment under long term cyclic load and short term rated bending load, the material is configured to improved bending strengths, and provide safe short circuit failure mode venting in a preferential direction or directions.
A contact assembly including a first contact member electrically connected to a first electrical terminal, a second contact member electrically connected to a second electrical terminal, and a third contact member movable into and out of contact with the second contact member. An elastically deformable fourth contact member ensures electrical contact between the first contact member and the second contact member and the contact assembly is configured such that the fourth contact member is increasingly compressed between respective abutment surfaces of the first contact member and the third contact member as the third contact member moves towards the second contact member, thereby resiliently deforming the fourth contact member. Also, an electrical circuit breaker and an electrical switch, respectively including such a contact assembly. Further, a vacuum interrupter including such an electrical circuit breaker.
A method for monitoring a transformer comprising a tap changer, wherein extracted information comprises a circulating current amplitude and/or a circulating current time covering at least a part of the tap change operation represented by at least one current difference waveform, and/or a transition current time covering at least a part of the tap change operation represented by at least one power loss waveform.
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
86.
Manufacturing method for power semiconductor device using low-energy electron radiation to produce silicon-enriched layer
A method for producing a power semiconductor device comprises providing a semiconductor body based on SiC, irradiating at least a first portion of a top side of the semiconductor body with low-energy electron radiation, and producing an electrical insulation layer at least in the at least one irradiated first portion.
H01L 21/26 - Bombardment with wave or particle radiation
H01L 21/04 - Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
H10D 62/832 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
An electromagnetic device comprising a magnetic field-generating electric circuit comprising at least one winding, and a system configured to monitor a condition of the electromagnetic device and/or to control the electromagnetic device. The condition-monitoring and/or control system comprises at least one first device comprising a transmitter/transceiver, and at least one second device comprising a receiver/transceiver, whereby the at least one first device is configured to wirelessly transmit at least one signal to the at least one second device. The at least one first device is configured to transmit the at least one signal at a frequency that corresponds to a resonance frequency of the at least one winding of the electromagnetic device, whereby the electromagnetic device is thereby configured to be used as a passive repeater for the at least one signal that is transmitted.
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H04W 4/00 - Services specially adapted for wireless communication networksFacilities therefor
The present disclosure relates to a method for detecting a DC magnetization in a transformer and controlling the transformer, the method including: sensing, using at least one vibration sensor, at least one vibration on at least one surface of the transformer or on at least one surface of a component connected to the transformer; measuring the sensed at least one vibration; detecting, based on the measured at least one vibration, the DC magnetization in the transformer; and controlling, based on the detected DC magnetization, the transformer. The present disclosure also relates to a respective device and system.
H01F 27/42 - Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors or choke coils
G01N 29/12 - Analysing solids by measuring frequency or resonance of acoustic waves
89.
FAST EARTHING SWITCH FOR INTERRUPTING NON-SHORT-CIRCUIT CURRENTS
The disclosure relates to a fast earthing switch including
The disclosure relates to a fast earthing switch including
two contacts of which at least one contact is movable in relation to the other contact between a closed position, in which the contacts are connected, and an open position, in which the contacts are unconnected,
The disclosure relates to a fast earthing switch including
two contacts of which at least one contact is movable in relation to the other contact between a closed position, in which the contacts are connected, and an open position, in which the contacts are unconnected,
a cylinder-like guiding tube in which the at least one movable contact forming a piston is slidably arranged for linearly moving between the closed position and the open position, whereby
The disclosure relates to a fast earthing switch including
two contacts of which at least one contact is movable in relation to the other contact between a closed position, in which the contacts are connected, and an open position, in which the contacts are unconnected,
a cylinder-like guiding tube in which the at least one movable contact forming a piston is slidably arranged for linearly moving between the closed position and the open position, whereby
the guiding tube is closed at an upper end and/or at a thereto opposite lower end so that that the piston defines a first compression chamber with the upper end and/or a second compression chamber with the lower end for thereby decelerating movement of the piston when moving into the open position and/or into the closed position.
H01H 33/91 - Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by, or in conjunction with, the contact-operating mechanism the arc-extinguishing fluid being air or gas
H01H 3/60 - Mechanical arrangements for preventing or damping vibration or shock
H01H 31/00 - Air-break switches for high tension without arc-extinguishing or arc-preventing means
Embodiments herein provide a protection method of protecting a Modular Multilevel Converter (MMC) for Direct Current (DC) fault protection in a symmetrical monopole configuration. The MMC for each of at least one phase comprises a leg, which comprises a first branch and a second branch comprising director valves connected in series. Further, legs of the MMC are connected in series between DC poles. The method comprises measuring DC pole voltages relative a common ground and accordingly determining a DC fault identifying a DC pole to ground fault of one of the DC poles. Upon determining the DC fault, the method comprises controlling the director valves of the second branch for each leg to bypass the DC poles through the second branch for protecting a DC pole other than the DC pole identified with the DC fault.
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
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
The present disclosure relates to a method for power control of a plurality of power converters forming a common power converter, the method including: determining a number of power converters to be deactivated of the plurality of power converters based on at least one load condition of the common power converter; and deactivating the determined number of power converters of the plurality of power converters. The present disclosure also relates to a corresponding device for power control.
H02M 1/14 - Arrangements for reducing ripples from DC input or output
H02M 3/335 - 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 using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
An energy storage system is provided comprising at least one energy string. Each energy string comprises a voltage adapter comprising a plurality of distributed sub-voltage adapter units, each having a primary side and a secondary side. Each energy string further comprises a primary energy storage block having at least one energy storage device. The primary sides of the plurality of distributed sub-voltage adapter units and the primary energy storage block are configured to be connected in series. The energy storage system further comprises at least one secondary energy storage block having at least one energy storage device. The secondary side of at least one sub-voltage adapter unit of the plurality of sub-voltage units is configured to be connected with one of said at least one secondary energy storage block.
Cooler unit, semiconductor device and method for manufacturing a cooler unit. The cooler unit for liquid cooling of a power module comprises at least one insert that includes an upper part and a lower part and that is configured to be coupled to the power module with the upper part. The cooler unit further comprises a housing that limits a flow channel for a coolant and that comprises at least one recess which penetrates a wall of the housing up to the flow channel and which is configured in coordination with the at least one insert geometrically, wherein the at least one insert comprises copper and is arranged inside the recess and laser welded to the housing such that during operation the coolant flows through the flow channel and around the lower part of the at least one insert.
H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
95.
POWER MODULE AND METHOD FOR MANUFACTURING A POWER MODULE
A power module (1) comprising at least one substrate (2), at least one switching device (3) located on the substrate (2), at least one power path (6) for supplying power to the at least one switching device (3) and at least one auxiliary path (7, 10) for controlling and/or monitoring the switching device (3), wherein the at least one auxiliary path (7, 10) comprises at least one connection portion (9, 12, 17, 18, 19) that comprises two or more connectors (8, 11, 20) electrically connected in parallel. wherein the power module (1) comprises several switching devices (3) having corresponding auxiliary paths (7, 10), wherein at least one of the corresponding auxiliary paths (7, 10) comprises a connection portion (9, 12, 17, 18, 19) with parallel connectors (8, 11. 20) and wherein at least another one of the corresponding auxiliary paths (7, 10) comprises a connection portion (9, 12, 17, 18, 19) with parallel connectors (8, 11, 20) or comprises a connection portion (13) with a single connector, wherein the number of the connectors (8, 11, 20) is different in
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 23/00 - Details of semiconductor or other solid state devices
H01L 25/065 - 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 not having separate containers the devices being of a type provided for in group
A transformer includes a plurality of windings including a first winding and a second winding, wherein the first winding includes a first winding portion and a second winding portion at a second position in the axial direction and in the radial direction, the first position different from the second position, the number of turns of the first winding portion being different from the number of turns of the second winding portion, wherein the second winding includes a third winding portion at a third position and a fourth winding portion at a fourth position in the axial direction and in the radial direction, the third position different from the fourth position in the axial direction, and the number of turns of the third winding portion being different from the number of turns of the fourth winding portion.
H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
A flow inverter (1) for a coolant substance (18) for a power semiconductor component (16) is specified, comprising—a first plate (2) extending along a main extension plane of the flow inverter (1), —a second plate (3) extending along the main extension plane, —a first wall (4) provided on the first plate (2) and the second plate (3) from a first main side of the flow inverter (1), and—a second wall (5) provided on the first plate (2) and the second plate (3) from a second main side of the flow inverter (1) opposite the first main side, wherein—the first plate (2) is provided next to the second plate (3), —at least one first recess (6) is provided between the first plate (2) and the second plate (3), and—at least one second recess (7) is provided between the first plate (2) and the second plate (3). Further, a power semiconductor component (16) is specified.
H01L 23/46 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids
F28F 13/06 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
H01L 25/065 - 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 not having separate containers the devices being of a type provided for in group
98.
SPACER ELEMENT FOR A WINDING, KIT, METHOD FOR MANUFACTURING A WINDING AND WINDING
According to an embodiment, the spacer element for a winding of an electric device includes at least one connection member and a plurality of ribs. The ribs are connected to the connection member and are spaced from each other pairwise. The spacer element is arrangeable between two successive winding units of the winding during manufacturing of the winding. Each two adjacent ribs delimit a flow channel for a cooling fluid, said flow channel extends between and along the two adjacent ribs.
H01F 27/32 - Insulating of coils, windings, or parts thereof
H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
The present disclosure relates to a method for distance protection of a transmission line carrying a plurality of phases for a phase-to-phase-to-ground fault comprising a first phase and a second phase of the plurality of phases as faulted phases in the phase-to-phase-to-ground fault, wherein the first phase is different from the second phase, the method comprising: obtaining a first impedance of a first electrical loop formed by a first phase carried on the transmission line and a ground potential based on a zero-sequence current (S601); obtaining a second impedance of a second electrical loop formed by a second phase carried on the transmission line and a ground potential based on the zero-sequence current (S602); computing an apparent impedance of the transmission line and a ground potential based on the transmission line seen at a first terminal based on the first impedance and the second impedance (S603); and performing the distance protection based on the apparent impedance (S604). The present disclosure also relates to a respective device, computer-readable medium, and system.
H02H 3/40 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to ratio of voltage and current
G01R 31/08 - Locating faults in cables, transmission lines, or networks
G01R 31/52 - Testing for short-circuits, leakage current or ground faults
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
100.
HIGH VOLTAGE INSTALLATION COMPRISING A PLURALITY OF POWER ELECTRONIC CELLS AND WAVEGUIDE
The present disclosure relates to a high voltage (HV) installation, comprising a plurality of power electronic cells, in particular power electronic switching cells, configured to operate at different electrical potentials, each power electronic cell comprising a cell-side transceiver with an antenna for receiving and/or transmitting high frequency (HF) communication signals, and a waveguide configured to carry and shield HF communication signals of the plurality of power electronic cells. The waveguide has a plurality of sections configured to leak HF communication signals present in the waveguide into a corresponding plurality of adjoining areas and vice versa. Each power electronic cell of the plurality of power electronic cells is arranged physically separated and in proximity to the waveguide, such that the respective power electronic cell is electrically insulated from the waveguide and the antenna of the respective cell-side transceivers is arranged in the respective adjoining area.
H02B 1/24 - Circuit arrangements for boards or switchyards
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H01Q 13/20 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave
patents
