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WO/2024/089759A1 |
A motor drive device (2) comprises: a rectifier circuit (21); a capacitor (23) that smooths a rectified voltage output from the rectifier circuit (21); a three-phase inverter (27) that converts a capacitor voltage output from the capacit...
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WO/2024/089760A1 |
A motor drive device (2) comprises: a rectification circuit (21); a capacitor (23) that smoothens a rectification voltage outputted from the rectification circuit (21); a three-phase inverter (27) that converts a capacitor voltage output...
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WO/2024/091083A1 |
The present invention relates to a modular multilevel converter and a power system using same. The modular multilevel converter may comprise: a first converter unit having a leg according to a preset phase, wherein the leg has an upper a...
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WO/2024/090232A1 |
Pull-down resistors (Rdu, Rdv, Rdw) are composed of two voltage dividing resistors which divide voltages between the ground and inter-arm connection points (Nu, Nv, Nw) that are connection points of upper arm elements (61, 62, 63) and lo...
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WO/2024/090982A1 |
An air conditioner capable of suppressing inverter loss is provided. The air conditioner includes a motor driving device of a motor having a plurality of phase coils not connected to each other, and the motor driving device includes two ...
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WO/2024/084566A1 |
Provided is an electric power converter control device for controlling an electric power converter which executes electric power conversion between a DC power supply and a motor, the electric power converter control device comprising a m...
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WO/2024/084724A1 |
This control device controls the rotation speed of a motor by controlling an inverter for AC driving a motor that rotationally drives a compressor, wherein: a compensation torque value is calculated by multiplying an average output torqu...
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WO/2024/084891A1 |
These control devices (50, 51) are applied to a system comprising: a rotary electric machine (20) which has windings (21); an inverter (30) which has upper and lower arm switches (SWH, SWL) that are electrically connected to the windings...
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WO/2024/085194A1 |
A motor drive device according to the present invention comprises: an inverter that is electrically connected to a motor which has an air bearing; and an inverter control unit that provides the inverter with a PWM control signal on the b...
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WO/2024/082904A1 |
A controller (1011, 3011) of an electric motor control module, a control method for an electric motor, and a related device. An input end of the controller (1011, 3011) is connected to a rotation speed measurement apparatus, such that th...
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WO/2024/083122A1 |
The present invention relates to the technical field of motor carrier frequencies. Specifically, disclosed are a high-speed motor carrier frequency modulation method and system. The modulation method comprises the following steps: enabli...
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WO/2024/079431A1 |
The invention relates to a method (100) for determining the potentials (Vi) at the terminals of the N phases of a motor, N being an integer greater than or equal to 4, which method comprises: - determining (102) reference potentials (VRE...
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WO/2024/080679A1 |
An objective of the present invention is to provide an output control system and method for an inverter for harmonic suppression, which suppresses harmonic vibration transmitted from a propeller, by analyzing, in real time, vibration gen...
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WO/2024/076471A1 |
A drive system suitable for motors and the like employs bidirectional FETs with active gate current sourcing and sinking to eliminate series diode losses. In one embodiment, the bidirectional FETs have floating field plates that can be d...
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WO/2024/075210A1 |
A power conversion device (200) comprises: a rectification unit (3) that rectifies first AC power supplied from a commercial power source (1); a smoothing capacitor (5) connected to the output end of the rectification unit (3); an invert...
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WO/2024/075798A1 |
This inverter control device controls an inverter that converts a DC current into a three-phase AC current by driving a three-phase inverter circuit and outputs the resulting current to a motor. The inverter control device comprises: a P...
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WO/2024/069811A1 |
A motor drive device (100) drives a motor (40) that generates, in addition to a fundamental wave component of an induced voltage, at least one harmonic voltage of a fifth-order harmonic component and a seventh-order harmonic component of...
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WO/2024/070731A1 |
Disclosed is a motor control device that is capable of estimating and compensating for a gain error of an electric current sensor in a stable and accurate manner, without being equipped with a special operating sequence. This motor contr...
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WO/2024/070456A1 |
A power source unit (10) is provided with a bias route (40, 40a-40c) through which some of the current including the lightning surge current, which overlaps the current from a power source (2), flows, and is further provided with an impe...
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WO/2024/066736A1 |
A controller of an electric motor control module, a control method for an electric motor, and a related device. A communication end of the controller (1011, 3011, 4011) is connected to an assisted driving controller (203, 302, 402) or an...
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WO/2024/071277A1 |
The motor control device according to one embodiment of the present invention comprises an inverter, a calculation unit, a speed estimation unit, and a current control unit. The inverter converts the DC voltage supplied from a DC power s...
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WO/2024/068095A1 |
The invention relates to a control method for generating voltages (u12, u23, u31 between phase connections (4) of a self-commutated power converter (1), wherein a zero-sequence system is superposed on a target voltage system without a ze...
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WO/2024/069437A1 |
A system includes: an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a first decoupling capacitor configured to be connected to a positive connection of the battery and...
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WO/2024/071023A1 |
A motor control device according to one aspect of the present disclosure comprises: an inverter circuit having an upper arm and a lower arm in each phase of three phases; a conduction control unit that controls conduction of the upper ar...
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WO/2024/066470A1 |
Disclosed in the present invention are a PWM generation method and circuit, a driver control method, an electric motor and an electric motor system. The PWM generation method comprises: on the basis of the polarity of a command current o...
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WO/2024/067242A1 |
An electric motor controller and a vehicle. The electric motor controller comprises a micro-control unit (MCU) module, a battery management system (BMS) module, a direct-current converter (DC/DC) module and a power distribution unit (PDU...
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WO/2024/062594A1 |
This motor drive system, for an electric vehicle comprising a motor having one rotor and two stators, comprises: a motor that outputs driving power for vehicle wheels and is capable of generating regenerative power; an inverter that cont...
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WO/2024/060785A1 |
Disclosed in the embodiments of the present application are a motor controller, a powertrain and an electric vehicle. The motor controller comprises an inverter circuit, the inverter circuit comprising three bridge arms. Each bridge arm ...
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WO/2024/057708A1 |
The present invention provides an electric power conversion device that converts DC power to three-phase AC power for output, the electric power conversion device comprising: an AC current sensor that detects current values in two phases...
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WO/2024/058456A1 |
A power conversion device according to one embodiment of the present disclosure may comprise an input voltage sensor for sensing input voltage; a first leg having a first top switch and a first bottom switch. A power conversion device ac...
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WO/2024/057368A1 |
The purpose of the present invention is to readily reduce any voltage error that is caused by dead time, in order to suppress torque shock. This inverter control device 100 controls, through pulse width modulation, a switching operation ...
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WO/2024/057449A1 |
This rotating machine control device (1) comprises: a voltage applicator (3) for generating a three-phase voltage to be applied to a rotating machine (2); and a controller (4) for controlling the voltage generation operation of the volta...
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WO/2024/057875A1 |
Motor control devices (351-354) each comprise: a torque command calculation unit (40) that calculates a torque command value (Trq*); a current command calculation unit (50) that calculates a current command value (I*); a power converter ...
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WO/2024/057728A1 |
This electric motor control device comprises: a first drive system including a first MCU and a first inverter; and a second drive system including a second MCU and a second inverter. The first MCU performs drive control on an electric mo...
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WO/2024/053459A1 |
This winding-field-type rotary electric machine (40) comprises: a stator (50) including stator windings (52); and a rotor (60) having a plurality of magnetic poles that are arranged in the circumferential direction, the rotor including f...
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WO/2024/053779A1 |
The present specification relates to an inverter control device and method. The inverter control device according to one embodiment of the present specification comprises: an inverter control unit, which generates, on the basis of a sign...
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WO/2024/053008A1 |
A motor drive device (100) comprises: an inverter (32) that converts DC voltage to AC voltage and applies the AC voltage to an AC motor (1); a DC voltage detection unit (31) that detects the DC voltage applied to the inverter (32); a vol...
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WO/2024/054331A1 |
A bearingless rotating electric machine provides a rotor-stator architecture that decouples motor torque fields from motor suspension fields greatly simplifying field weakening such as affects torque fields, without detrimental effect on...
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WO/2024/051227A1 |
Disclosed in the embodiments of the present application is a control method. The method is used for controlling a BLDCM. A driving circuit of the BLDCM comprises a DC-DC converter and a three-phase inverter. The method comprises: acquiri...
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WO/2024/053460A1 |
This electric power conversion device is equipped with: a higher arm switch (SWH) and a lower arm switch (SWL) which are connected in series; a first capacitor (21) which is electrically connected in parallel to the higher arm switch and...
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WO/2024/048258A1 |
A motor control device (100) wherein an inverter (10) converts a DC voltage that is supplied from a DC electric power source into an AC voltage and applies the converted AC voltage to a motor (M), an electric current detection unit (21) ...
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WO/2024/048291A1 |
A torque command calculation unit (40) of a braking force control unit (400) calculates a torque command value (Trq*) for a motor (60) on the basis of required braking force commanded from the outside. The relationship between the torque...
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WO/2024/048342A1 |
This EPU (50) has a motor device (60), an inverter device (80), a unit housing (101), and a cooling device (800). The motor device (60) has a motor (61) and a motor housing (70). The inverter device (80) has an inverter (81) and an inver...
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WO/2024/047787A1 |
This steering control device (40) is configured to execute an operation-amount calculation process, a correction process and an operation process. In the operation-amount calculation process, an operation amount is calculated for control...
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WO/2024/047788A1 |
A steering control device (10) executes operation amount calculation processing, estimation processing, correction processing, and operation processing. The operation amount calculation processing calculates an operation amount of contro...
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WO/2024/047789A1 |
A steering control device (10) performs an operation amount calculation process, a correction process, and an operation process. The operation amount calculation process is for calculating the operation amount of control in which a steer...
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WO/2024/048818A1 |
This apparatus for suppressing resonance of a servo system comprises a resonance suppressing unit which includes: an amplitude estimator for outputting an amplitude estimation value that is a value obtained by estimating an amplitude of ...
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WO/2024/040742A1 |
Disclosed are a multi-pole few-slot unitized permanent magnet hub motor and a coordinated control system and method. The motor is composed of N same motor units evenly distributed in the circumferential direction of a radial cross sectio...
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WO/2024/042594A1 |
Provided is a rotary machine control device (1) that applies an AC voltage to a rotary machine (16) through an electric power converter (14) for converting a DC voltage from a DC power supply (13), wherein: the rotary machine control dev...
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WO/2024/042942A1 |
In order to provide a PWM control technology that can output an accurate fundamental wave voltage while reducing harmonic current by adding an operation amount to modulation waves of three phases in accordance with the saturation states ...
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