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WO/2021/174737A1 |
The present application provides a motor control method, a motor control apparatus, a motor system, and a storage medium. The motor control method comprises: obtaining a busbar voltage of a motor; and determining that the busbar voltage ...
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WO/2021/174631A1 |
Disclosed are a power transmission line distance protection current transformer saturation identification method and system. According to the present invention, a distance protection locking criterion and a distance protection opening cr...
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WO/2021/177655A1 |
The present invention provides a switching mode power supply comprising: a primary-side circuit unit including an input circuit for providing an input voltage and a semiconductor switch for applying an electric current to or blocking the...
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WO/2020/204685A9 |
The invention relates to electrical engineering and is designed for monitoring the working parameters of a power transformer when in service and for controlling the systems of said transformer. The aim of the invention is to increase tra...
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WO/2021/172702A1 |
A fault detection and system protection method of a stand-alone microgrid on the basis of a power conversion system (PCS) serving as a main power source in the microgrid, according to the present invention, allows the PCS to be controlle...
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WO/2021/170047A1 |
An electric motor control system and a vehicle. The electric motor control system (10) comprises: a whole vehicle controller (110) for acquiring whole vehicle state data and outputting an instruction to cut off output torque of an electr...
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WO/2021/168906A1 |
Provided is an overcurrent fault protection circuit. The overcurrent fault protection circuit measures electric energy parameters in a bus circuit, and can control, when it is determined, according to the electric energy parameters, that...
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WO/2021/164636A1 |
An undervoltage protection method (1000) for use in an electric motor control unit (ECU), comprising: receiving an enable signal of an active short-circuited circuit, wherein the enable signal indicates whether to control a gate driver t...
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WO/2021/167599A1 |
A shoot-through protection circuit includes a current sensor providing a sensor signal connected to a comparator (230) input via at least a burden resistor (120). A switch protection circuit (250) including a protection input connected t...
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WO/2021/165780A1 |
Provided are a battery control circuit, a battery protection circuit, a power storage device, a semiconductor device, a vehicle, an electronic apparatus and the like that have a novel configuration, a configuration with low electric powe...
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WO/2021/163649A1 |
A power conversion device includes: a semiconductor substrate; a plurality of controllers formed on the semiconductor substrate; two or more converter phases formed on the semiconductor substrate; two or more programmable components form...
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WO/2021/160285A1 |
The invention ist related to a method of protecting relays or electronic switches from overheating or damage by creeping short circuit currents, whereby the following steps are carried out in a loop - measurement of the circuit current a...
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WO/2021/163525A1 |
A surge arrester device comprising a first housing portion including a first end and a second end, the first end including a first opening and the second end including a second opening. The device includes a first axis parallel to the fi...
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WO/2021/162740A1 |
A battery system includes a power bus and a set of battery packs. A battery pack is one or more batteries, a sensor board, and a power board. The power bus is used to electrically connect the set of battery packs. The sensor board receiv...
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WO/2021/157222A1 |
One problem to be addressed has been the inability to cut off electric current because, depending on the impedance in a path, an electric current interruption element would not be fused even when a voltage breakdown element is brought in...
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WO/2021/158145A1 |
A surge arrester is presented for the lightning protection of elements of electrical equipment or of a power transmission line, said surge arrester comprising a discharge device (arc quenching device), a high-voltage electrode, a low-vol...
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WO/2021/158539A1 |
A spark gap circuit includes a circuit board. The spark gap circuit also includes an input configured to connect to the circuit board and to receive signals. The spark gap circuit also includes a spark gap configured to connect to the ci...
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WO/2021/156936A1 |
In a multi-terminal DC power transmission system (20), a common control device (120) is connected to a plurality of individual protection devices (101-106) via a first communication network (121). When detecting a change of current or vo...
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WO/2021/157857A1 |
An aerosol generating device and a method of controlling thereof are provided. The aerosol generating device may include a heater configured to heat an aerosol generating material, a battery configured to supply power to the heater, a mi...
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WO/2021/151625A1 |
A circuit interrupter (10) including a current sensor (206) having a normal sensor output and an over current detection output, a solid state switch module (202) structured to have a closed state to allow current to flow through the circ...
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WO/2021/151469A1 |
The invention relates to a method for operating a modular multilevel converter (10) having a plurality of sub-modules (1, 2, 3, 4, 5, 6), each of which has at least two electronic switching elements (12), an electric energy store (14), t...
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WO/2021/151204A1 |
A switching circuit of a motor drive includes a high-side switch configured to selectively conduct current between a DC positive conductor and an output conductor, and a low-side switch configured to selectively conduct current between t...
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WO/2021/153976A1 |
A battery pack simulation apparatus, according to an embodiment of the present invention, may comprise: an input unit that receives a voltage value, a current value, a temperature, and an initial impedance value; an output value generati...
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WO/2021/151667A1 |
The invention relates to a method for controlling a servomotor (M, M1-M6) by means of a converter (1), comprising the steps of: monitoring a circuit of the constant-voltage DC link (4) for a flow of electric current, which circuit is con...
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WO/2021/150312A1 |
A ballistic resistant case for a secondary battery having a rectangular metal case (160) with a panel (160p) connected to the bottom wall and the side walls to divide the internal space of the case into cell pack receiving bays (160b). A...
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WO/2021/147914A1 |
A low-voltage protection method and system for vehicle-mounted devices. The low-voltage protection method comprises: acquiring a target protection voltage of a vehicle storage battery at the current time, the vehicle storage battery supp...
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WO/2021/150978A1 |
The present disclosure provides controllers for power distribution network circuit interrupting devices and provides electronic control circuits for inclusion in such controllers. The electronic control circuit has a boost circuit, a cap...
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WO/2021/147163A1 |
Disclosed are a phase difference protection method and system based on a magneto-optical measurement element. The method comprises: placing an element with a magneto-optical effect near an alternating-current line or a cable; inputting p...
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WO/2021/150593A1 |
Apparatus and methods for supplying DC power to control circuitry of a matrix converter is provided. In certain embodiments, a matrix converter includes an array of switches having AC inputs for receiving a multi-phase AC input voltage a...
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WO/2021/144781A1 |
A system includes a first circuit breaker (10B-10N) comprising a first solid state switch (100), first mechanical contacts (500A), and a current sensor structured to sense current flowing through the first circuit breaker, and a second c...
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WO/2021/146365A1 |
A transformer fault detection, where the transformer includes a primary winding coupled to a medium voltage power line and a secondary winding providing a stepped down voltage of the medium voltage. The detection system includes a switch...
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WO/2021/139979A1 |
An electrical vehicle charger including a first terminal connected to a first terminal line and a second terminal connected to a second terminal line, and including a first nominally live input line and second nominally neutral input lin...
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WO/2021/139119A1 |
Disclosed are a hybrid converter with controllable turn-off at an alternating-current side, and a control method. The hybrid converter with controllable turn-off at an alternating-current side comprises three parallel branches, three bid...
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WO/2021/135459A1 |
Disclosed are a series-parallel modular multi-level converter with cut-off capability and a control method thereof. The multi-level converter is of an ABC three-phase structure, each phase comprises an identical upper bridge arm (1.1) an...
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WO/2021/136221A1 |
A protective circuit for a GaN power device, comprising a negative voltage generation unit, a gate voltage switching unit and a drain voltage switching unit. A negative voltage conversion sub-unit is used to convert a power supply into a...
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WO/2021/135739A1 |
An electric motor control system and an electric motor control apparatus. The system comprises: a main control module, a driving module and a monitoring module, wherein the main control module is used for outputting a low-voltage driving...
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WO/2021/136025A1 |
A charging protection circuit (13). The charging protection circuit (13) realizes over-current protection by using a four-terminal NMOS switch tube (131), and performs floating management on a Sub port of the four-terminal NMOS switch tu...
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WO/2021/138207A1 |
Systems and methods are provided for managing a power distribution system. The power distribution system can include a first node, second nodes, and at least one smart interface controller. The first node can include an energy storage co...
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WO/2021/134540A1 |
A hybrid circuit breaker (200), a hybrid circuit breaker system and a circuit breaking method, the hybrid circuit breaker (200) comprising: a power supply, having two output terminals (In1, In2); a semiconductor circuit breaker (MSS2), o...
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WO/2021/130194A2 |
The invention relates to an accumulator module (26) comprising a moisture-tight housing (28) in which there are arranged a plurality of accumulator cells (31), the contacts of which are electrically interconnected and are routed to outer...
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WO/2021/130898A1 |
This power control device has: a first overcurrent detection unit (201) for detecting whether or not current supplied from a power supply unit to an external device exceeds a first reference value; a second overcurrent detection unit (20...
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WO/2021/128716A1 |
A multiplexed output short-circuit protection circuit. The multiplexed output short-circuit protection circuit comprises a power supply module (1), an input winding (2) and a plurality of output windings (3), wherein the power supply mod...
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WO/2021/131698A1 |
A power feeding control device (10) in which power feeding is controlled by switching on or off a first semiconductor switch (20a) and a second semiconductor switch (20b) that are arranged in a current path. A first diode (21a) and a sec...
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WO/2021/132690A1 |
A secondary battery that comprises a plurality of cell modules, a supply unit, and a control unit. The cell modules include a plurality of first containers, a second container, an electrolyte solution, positive electrodes, and negative e...
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WO/2021/129598A1 |
A safe and quick shutdown apparatus for a photovoltaic module. A photovoltaic module is connected in parallel to a switching device, a holding device, and a voltage acquisition module; the switching device, the holding device, and the vo...
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WO/2021/129823A1 |
The present application provides an ultra-high-voltage direct current high-end converter valve area grounding fault control method and control device. An ultra-high-voltage direct current transmission system comprises at least one rectif...
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WO/2021/129828A1 |
The present application provides an earth fault control method for a valve region of an ultra-high-voltage direct current low-voltage-end converter, and a control device. The control method and the control device are applicable to a low-...
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WO/2021/122187A1 |
Disclosed is a voltage converter (10) comprising at least one arm (24) extending between a first DC terminal (16) and a second DC terminal (28) and comprising at least one upper half-arm (24u) and one lower half-arm (24l) that are connec...
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WO/2021/125269A1 |
For example, an overcurrent protection circuit 71 has a hiccup control unit 71b for hiccup-driving a switching element 10 so as to repeat predetermined on-time ton and off-time toff when the output current Io flowing through the switchin...
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WO/2021/124719A1 |
This semiconductor circuit that is connected to a load circuit and controls the supply of power to the load circuit is provided with: a power supply line to which a power supply voltage is applied; an overvoltage protection unit having a...
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