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WO/2022/028238A1 |
Provided is a power conversion system. The system comprises: a rectifier module, which converts an alternating-current input voltage into a direct-current bus voltage; an inverter module, which converts the direct-current bus voltage int...
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WO/2022/029940A1 |
A motor drive device comprising a first inverter, a second inverter, and a controller. This controller: rotates the motor rotor, when the motor starts, to an initial position by using DC magnetic excitation that supplies DC magnetic exci...
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WO/2022/030190A1 |
A control circuit (10) comprises: an OFF-holding switch (86, 88) which, by being turned on, short-circuits between the gate and ground portion of an OFF-side switch (SWH) constituting a power converter (20); a drive unit (80) that become...
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WO/2022/026957A1 |
An electric machine includes a stator defining multiple stator poles with associated stator windings configured to receive a stator current. The electric machine also includes a rotor defining multiple fixed rotor poles with associated r...
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WO/2022/020936A1 |
An electrical distribution apparatus is disclosed, having a supply terminal structured to receive distribution electricity from a primary circuit; a power corrector configured to correct the distribution electricity to reduce a voltage d...
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WO/2022/019083A1 |
A rotating electric machine drive device (10) is applied to a rotating electric machine having a plurality of windings corresponding to a plurality of phases and comprises: a first inverter (INV1) connected to a DC power supply and provi...
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WO/2022/019043A1 |
An electronic control device (33, 33A, 33B) equipped with a plurality of computation blocks (41-44, 51-54, 61-63) for computing floating-point data, said device being equipped with: a storage unit (36, 36A, 36B) for storing the computed ...
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WO/2022/014083A1 |
A motor control device, according to the present invention, is connected to a power converter for converting power from direct current power to alternating current power, and controls the drive of an alternating current motor that is dri...
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WO/2022/013123A1 |
The invention relates to a method and a system for controlling at least two electric machines, preferably electric motors, which are arranged in a vehicle; wherein a first electric machine is controlled by means of a first pulse-width-mo...
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WO/2022/009201A1 |
Circuitry for directly providing drive power to a BLDC motor having separated coils, comprising unipolar controlled current sources for supplying current to each of the separated coils; a controller, for controlling the level and phase o...
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WO/2022/009740A1 |
A motor drive device 1 is provided with: a converter unit 11 which converts input alternating-current power into direct-current power and outputs the same to a DC link; a DC link capacitor 4; voltage dividing resistors 13-1, 13-2 which a...
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WO/2021/258799A1 |
The present application provides an inverter switching frequency adjusting method, a power assembly system and an electric vehicle, and relates to the field of electric vehicles. The current output by an inverter is used for driving a mo...
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WO/2021/256312A1 |
A motor control device (80) comprises: a first inverter (120) connected to a first winding set (180) and a first power supply unit (191); a second inverter (220) connected to a second winding set (280) and a second power supply unit (291...
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WO/2021/253204A1 |
A driver for a variable frequency motor that has a simple structure and a clear and easy-to-understand configuration, comprising a variable frequency drive circuit (3), wherein the input end of the variable frequency drive circuit (3) is...
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WO/2021/255887A1 |
Provided is a control device for an AC rotating electric machine and an electric power steering device capable of accounting for the mechanical resonant period of the AC rotating electric machine to suppress increases in the sound of the...
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WO/2021/256762A1 |
A hybrid power generation measurement system for construction machines according to one embodiment in the present specification comprises: a power distribution device that is connected to a driving unit and a working unit of a piece of c...
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WO/2021/254530A1 |
Provided are a compressor variable-frequency speed regulation system and a direct-current bus voltage overvoltage protection method, comprising: during the process of motor speed regulation, setting a direct-current bus voltage given val...
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WO/2021/255956A1 |
Provided is a motor control device capable of realizing highly accurate abnormality diagnosis. A PWM controller 15 controls a plurality of switching elements in a power converter 2 on the basis of a PWM signal. A current controller 11 ac...
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WO/2021/256045A1 |
In the present invention, in a first control state, it is determined whether there is a malfunction pattern (FT), which is either a first malfunction pattern (FP1) or a second malfunction pattern (FP2), in a second control state, it is d...
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WO/2021/251536A1 |
The present invention relates to a motor assembly, and more particularly, to a motor having a two-phase input power source and a power conversion device for driving a two-phase motor. The present invention relates to the motor assembly f...
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WO/2021/249221A1 |
Disclosed in embodiments of the present application are a motor controller and a vehicle. The motor controller comprises a power circuit board; the power circuit board comprises a circuit board and a plurality of bridge arms; the circuit...
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WO/2021/248223A1 |
The present disclosure provides a method and apparatus using a novel PWM switching technique that requires only one PWM carrier signal and benefits from two logic functions to provide switching signals and provides the flying capacitor (...
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WO/2021/251273A1 |
A first terminal (T1) that is one end of a DC rotating machine (710) is connected to a phase current path of a multi-phase winding set. A multi-phase power converter (60) converts the DC power of a power supply (Bt) to multi-phase AC pow...
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WO/2021/247021A1 |
The subject matter of this specification can be embodied in, among other things, a method that includes receiving a first electrical current output setpoint, identifying a first operational condition based on the first electrical current...
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WO/2021/247762A1 |
Systems and methods for reducing current imbalance in a motor, where one embodiment comprises a system having an ESP installed in a well, an electric drive, and a power cable coupled between the drive and the ESP's motor. The electric dr...
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WO/2021/245974A1 |
An object of the present invention is to realize a motor control device capable of improving motor control precision by suppressing error component due to braking and so forth, and bringing an estimated motor speed closer to an actual mo...
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WO/2021/245815A1 |
The present invention obtains a rotating machine control device capable of generating a current command value without using a current command map in such a way that torque does not decrease by reducing loss while appropriately protecting...
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WO/2021/244669A1 |
A compressor variable-frequency speed adjusting system and a control method for a direct-current bus voltage, comprising: a rectifier module, for converting an alternating-current input voltage into a direct-current bus voltage; an inver...
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WO/2021/248155A1 |
Systems and methods for reducing current imbalance in a motor, where one embodiment comprises a system having an ESP installed in a well, an electric drive, and a power cable coupled between the drive and the ESP's motor. The electric dr...
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WO/2021/243425A1 |
The present invention relates to a system for limiting the charging current of the capacitive filters of the power cells of a cascaded modular power converter during the start-up period. The invention applies to cascaded modular power co...
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WO/2021/239183A1 |
The invention relates to a method for operating a multi-phase inverter (3) connected to an electric machine (4) using a control device (2), wherein the inverter (3) comprises a plurality of switch devices and the control device (2) contr...
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WO/2021/239344A1 |
The invention relates to a method for starting and stopping an asynchronous motor (4) by means of a soft starter (1). The method comprises the following steps: determining ignition options of one or more thyristors (2) of the soft starte...
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WO/2021/235548A1 |
This motor system comprises: a permanent magnet motor (18) including a stator having N-phase windings (N is a natural number greater than or equal to three) and a rotor having a permanent magnet; an inverter (16) that supplies N-phase dr...
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WO/2021/235328A1 |
When the rotation direction of a motor (18) is determined by a connection determination unit (40) not to match a rotation command (Cr), the phase sequence of a current detection signal (Di) and the phase sequence of a voltage command (Cv...
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WO/2021/233611A1 |
The invention relates to a multi-system motor (1) for operation from an AC voltage grid or a DC voltage grid. In order to improve operation from any desired energy supply grid (8), it is proposed that the multi-system motor (1) has a sem...
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WO/2021/235010A1 |
The present invention addresses the problem of controlling rotation of a motor at rotational speeds equal to or less than the set minimum rotational speed of a motor driver. A motor control device according to one embodiment of the pre...
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WO/2021/230177A1 |
A control circuit (50) is applied to a system (10) provided with a low-voltage power storage unit (31), a high-voltage power storage unit (30) provided in a high-voltage region, a rotary electric machine (11), and a power converter (13) ...
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WO/2021/230446A1 |
According to an embodiment, provided is a vacuum cleaner having: a body which has a power part for supplying power, a first motor for generating a suction force and a first PCB having a first control part mounted thereon; and a nozzle wh...
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WO/2021/230165A1 |
Provided is a control device for a multiphase rotary machine in which a multiphase rotary machine (80) has two systems of multiphase winding sets (801, 802) magnetically coupled to each other, the torques generated by energizing the mult...
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WO/2021/229703A1 |
Provided is a device that controls an alternating-current rotating machine, in which a current sensor is serially connected to a switching element on the positive-electrode side of an inverter or to a switching element on the negative-el...
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WO/2021/228582A1 |
The invention relates to controlling an electric drive system, a control range for the switching frequency of a power converter in such a drive system being adaptable when the rotational frequency curve or the torque curve of the electri...
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WO/2021/228584A1 |
The present invention relates to controlling a voltage converter, the modulation method for controlling the voltage converter being adaptable when a voltage ripple at the input of the voltage converter is taken into account. In particula...
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WO/2021/228583A1 |
The present invention relates to controlling an electric drive system. According to the invention, the rotor temperature of an electrical machine is monitored and modulation methods and the switching frequency for controlling the drive s...
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WO/2021/229376A1 |
The invention relates to a motor control processing unit (1) for a motor control device (2) which comprises a voltage source inverter unit (4), configured to control the voltage source inverter unit (4) to provide a motor voltage followi...
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WO/2021/225660A1 |
A variety of methods, controllers and electric machine systems are described that facilitate pulsed control of electric machines to improve the energy efficiency of the electric machine when conditions warrant. Selected transitions betwe...
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WO/2021/225590A1 |
According to one aspect, a starter-generator control unit may include a comparator, a pulse width modulation (PWM) duty cycle generator, a randomizer, and a sequencer. The comparator may receive a current reading from a current sensor an...
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WO/2021/221852A1 |
A magnetically de-coupled, separately controlled, electric machine assembly including a radial and one or more axial electric machines, each with rotors mechanically coupled to and arranged to directly drive a single shaft. Each of the e...
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WO/2021/221182A1 |
The present invention relates to a current sensor assembly comprising: a housing; a plurality of shields which are accommodated inside the housing and open toward the top of the housing; a plurality of bus bars to which three-phase curre...
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WO/2021/216228A1 |
Modulated pulse control of electric machines to deliver a desired output in a more energy efficient manner by either (a) operating the electric machine in a continuous mode when a requested torque demand is greater than the peak efficien...
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WO/2021/214980A1 |
This electric motor drive device comprises: a connection switching device (60) that includes a plurality of switches (61, 62, 63), and switches the connection state of windings (71, 72, 73) of an electric motor (7) by performing switchin...
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