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WO/2023/230897A1 |
Provided are a modular multilevel converter (MMC) control method and control apparatus (500, 600, 700), a computing device (800) and a storage medium (804). The MMC control method comprises: for each branch of an MMC, executing the follo...
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WO/2023/233636A1 |
A power conversion device (1) comprises: a rectifier circuit (11) that rectifies a first AC voltage into a DC voltage; an inverter unit (12) that converts the DC voltage into a second AC voltage; a filter including inductance elements (2...
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WO/2023/233683A1 |
The purpose of the present invention is to obtain a rotating machine control device capable of adjusting the on/off switching timing of a square wave voltage while preventing an increase in calculation amount. An inverter control unit ...
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WO/2023/233544A1 |
A power conversion device according to the present disclosure comprises: at least one insulation structure (20); and a plurality of power conversion units (10). The at least one insulation structure has a plurality of step structures (30...
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WO/2023/233454A1 |
This power conversion device (200) comprises a power storage element (40), a power converter (20), and a control device (100). The control device (100) includes: a generator simulation unit (60) that, by simulating the characteristics of...
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WO/2023/234045A1 |
A rotating electric machine unit according to the present disclosure comprises: a rotating electric machine that has a stator, a rotor that rotates about a central axis relative to the stator, and a plurality of coils that are wound arou...
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WO/2023/234044A1 |
A rotary electric machine unit according to the present disclosure comprises a rotary electric machine, an electric power conversion device, and a first cooling part that cools the electric power conversion device and has formed therein ...
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WO/2023/233456A1 |
This power conversion device (200) comprises a power converter (20) and a control device (100). The control device includes: a DC voltage control unit (52) that generates an effective power command value on the basis of a DC voltage comm...
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WO/2023/232597A1 |
The invention relates to a power module (LM), comprising: - a circuit substrate (ST) having a top face, on which a first electrical connection surface (F1), for surface-mounting first transistor switches (T1), and a second electrical con...
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WO/2023/232648A1 |
A power electronics converter is disclosed. The power electronics converter comprises a converter commutation cell comprising a power circuit and a gate driver circuit, the power circuit comprising at least one power semiconductor switch...
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WO/2023/230679A1 |
The present invention proposes a mode of operation in which a conventional DC-AC MMC (1) operates alternatingly in two distinct states: a first state of operation and a second state of operation. During each of these states, half of the ...
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WO/2023/233540A1 |
An uninterruptible power supply device (100) comprises a compensation power supply circuit (1) and a bypass circuit (20). The bypass circuit is provided electrically in parallel to the compensation power supply circuit. The bypass circui...
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WO/2023/228650A1 |
[Problem] To provide an electric compressor that is easy to assemble and maintain and with which it is possible to realize size and cost reduction by reducing the number of components, while ensuring the specified insulation characterist...
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WO/2023/227342A1 |
The invention relates to a method for pre-magnetizing a medium voltage transformer (T1) which is designed to carry out a voltage transformation between a medium voltage of a medium voltage grid (MVG) on a medium voltage side of the mediu...
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WO/2023/228739A1 |
In the present invention, an electric power conversion circuit device comprises an inverter circuit between input terminals (T01, T02) and output terminals (T11, T12). A first connection point (N11) is connected to the first output termi...
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WO/2023/227205A1 |
The present disclosure relates to a power converter arrangement (100) for power conversion in a single-phase power network. The power converter arrangement comprises: an input filter (120) coupled to a first phase terminal (111) to recei...
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WO/2023/228680A1 |
A control device (40) for a three-level inverter is applied to a system comprising: a first power storage unit (21) and a second power storage unit (22); a driving target (10); and a three-level inverter (30) having switches (SUH to SWL ...
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WO/2023/226348A1 |
Disclosed in the present application are an isolated matrix converter and a control method. The converter comprises bidirectional switch modules, a transformer, a resonant inductor, a resonant capacitor and bridge arm capacitors, a bidir...
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WO/2023/226724A1 |
Provided in the present invention are a method for improving the efficiency of a micro-inverter, and a dual-active-bridge-type micro-inverter. The method comprises: performing power modulation mode switching of a dual-active-bridge-type ...
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WO/2023/228649A1 |
[Problem] To provide: an electric compressor which can avoid complexity in the manufacturing process and suppress an increase in the number of components while securing the heat dissipating performance and aseismic performance of a drivi...
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WO/2023/229360A1 |
Disclosed is an interface device. The interface device includes a substrate that interfaces signals between an electronic device and a display device, wherein the substrate includes a first connector connected to the electronic device, a...
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WO/2023/226048A1 |
There is provided a computer-implemented method for predicting commutation failures, so as to prevent commutation failures from occurring, at an inverter side valve group (35, 36) of a Line-Commutated Converter based High Voltage Direct ...
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WO/2023/228436A1 |
An electric power conversion device (10) comprising a first electric power converter (13a) that converts AC current generated by a first dynamo-electric machine (8a) coupled with an internal combustion engine to DC current, a second elec...
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WO/2023/226723A1 |
Provided in the present invention is a circuit modeling method for a dual-active-bridge-type micro-inverter. The method comprises: establishing an equivalent circuit model, and making a dual-active-bridge-type micro-inverter be equivalen...
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WO/2023/228641A1 |
[Problem] To provide an inverter device that efficiently reduces common mode noise which flows out from a switching element and a motor, and that enables a reduction in size. [Solution] The present invention comprises an input-side commo...
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WO/2023/226124A1 |
A pulse width modulation power supply method, and an electronic high-voltage energy extraction and sampling apparatus and method. The apparatus uses a high-voltage energy extraction module composed of a high voltage-side element and a lo...
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WO/2023/228640A1 |
[Problem] To provide an inverter device capable of effectively, without any difficulty, reducing noise caused by common mode currents flowing out from a motor and a housing. [Solution] An inverter device 16 comprises a three-phase invert...
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WO/2023/227108A1 |
A bidirectional power supply apparatus and system. The bidirectional power supply apparatus comprises: an alternating current input end configured to input an alternating current to the bidirectional power supply apparatus; an alternatin...
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WO/2023/229455A1 |
A power converter is proposed for converting a mains input into an output for driving at least one load, in particular for driving a pair of electrodes in a treatment chamber of a pulsed ohmic heating or other pulsed electrical fields te...
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WO/2023/229377A1 |
An electronic device for determining a ground fault of a power line to which a DC/AC power converter for outputting, to a control circuit, a converter state signal indicating whether the converter is operating is connected, according to ...
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WO/2023/228642A1 |
[Problem] To provide an inverter device that can effectively reduce noise by a common mode current while having a reduced size. [Solution] The inverter device comprises: an input side common mode coil 67 that is inserted into a single ph...
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WO/2023/228639A1 |
[Problem] To provide an inverter device by which it is possible to effectively reduce noise resulting from a common mode current flowing from a motor and a housing, without worsening noise in a low voltage circuit. [Solution] An inverter...
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WO/2023/228677A1 |
According to the present invention, a short-circuit fault and an open-circuit fault of a switch used in an inrush current suppression circuit are detected without using a voltage detector. A power conversion device (1) comprises a smooth...
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WO/2023/223071A1 |
A motor control method for domestic appliances for reducing noise during use of the domestic appliances including laundry machines and kitchen machines. The method obtains a cancellation signal configured to reduce the noise of the domes...
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WO/2023/222183A1 |
The present disclosure relates to a high voltage bypass device (10), comprising a cavity (13), a trigger element arranged in the cavity (13), a reservoir (17) filled with a conductive, flowable material (18), and a shutter (19) separatin...
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WO/2023/222220A1 |
The disclosure relates to a power converter package (100) for converting a first DC voltage and a second DC voltage into a common AC voltage. The power converter package comprises: a first power semiconductor (130) and a second power sem...
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WO/2023/222420A1 |
Multi-level converter (1), comprising - a capacitor (2); - a resistor (3); - a first switch (4) actuated by a first motor drive (40); - a second switch (5) actuated by a second motor drive (50); wherein - in a closed state, the first swi...
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WO/2023/224090A1 |
Provided is a flying apparatus that can effectively cool components of the flying apparatus. A flying apparatus 10 comprises an airframe base 14, a power supply section, an arm 11 extending toward the periphery of the airframe base 14,...
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WO/2023/221386A1 |
The present invention aims to reduce the requirement of a variable-frequency drive system for the withstand voltage of a single power unit, and also aims to avoid the shutdown of the variable-frequency drive system caused by the damage o...
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WO/2023/223406A1 |
The present invention comprises a reverse connection protection relay, a voltage detection unit, and a control device. The reverse connection protection relay comprises a switching element and a rectifying element. The switching element ...
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WO/2023/223609A1 |
A power module according to the present disclosure comprises: a circuit board disposed on a main surface of a base plate; a main terminal part capable of inputting power to a circuit pattern of the circuit board; an output terminal part ...
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WO/2023/224495A1 |
A variable battery system is disclosed. The system comprises a number of DC sources which by/via control signal will produce wavelets, and a (centralized) control system arranged for individual (monitoring and) control of each DC source ...
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WO/2023/219107A1 |
Provided is an inverter circuit capable of providing both a constant current power supply and a constant voltage power supply. This inverter circuit has: input inductance connected in series between a DC power supply and a switching el...
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WO/2023/217218A1 |
The present application provides a dual-converter parallel circuit and a control method and device therefor, and a direct current power transmission system. The dual-converter parallel circuit comprises a first converter, a second conver...
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WO/2023/217372A1 |
Provided an AC/DC power converter (300, 422). The AC/DC power converter (300, 422) includes a low-frequency half-bridge switching device circuit (Sa, Sb) (302), a high-frequencyhalf-bridge switching device (S1, S2) circuit (304) and a co...
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WO/2023/219595A1 |
Three-phase, three-level, transformerless, step-down inverter The invention relates to a transformerless, high efficiency, three-level, high power density, three-phase DC/AC inverter used in renewable energy, military land/sea/air vehicl...
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WO/2023/217259A1 |
A non-high side power tube inverter circuit and an inverter module, which relate to electronic technology. The inverter circuit in the present invention is connected to become an annular structure by at least two inverter modules. The in...
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WO/2023/216518A1 |
Disclosed in the present application is a T-type three-level overload operating system. The T-type three-level overload operating system comprises a three-level topological circuit and an overload mode switching system, wherein a first d...
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WO/2023/216586A1 |
Provided in the present application is a solid state transformer. The solid state transformer of the present application comprises a first-phase circuit, the input end of the first-phase circuit being connected to single-phase medium-vol...
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WO/2023/218681A1 |
A shield plate is used to reduce effects on a control board from noise generated by a power conversion module, and a configuration is made in which the shield plate is fastened by fixing with a screw from above a resin member that includ...
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