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WO/2019/021156A1 |
The invention teaches a circuit and method of operating a motor drive circuit, during normal operation of the motor. The method includes the steps of: adjusting a shape of a fundamental input voltage wave and adjusting an amplitude of an...
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WO/2019/021647A1 |
Provided is a power conversion device equipped with a plurality of drive units and capable of continuing to drive a motor when abnormality occurs. The power conversion device 1000 is provided with: a first inverter 120 connected to one e...
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WO/2019/016901A1 |
A motor drive device (30) is used for driving a motor (3) and is provided with an inverter (2) that applies AC voltage to the motor (3). At the time of starting operation, the inverter (2) operates switching elements of the inverter (2) ...
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WO/2019/015858A1 |
The invention relates to an electric machine. The machine has at least two sub-machines, each of which has the same number of phases and each of which is designed to generate a magnetic rotary field independently of one another in order ...
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WO/2019/015894A1 |
The invention relates to an electric machine, in particular an electric motor and/or generator. The electric machine has a stator and a rotor which is designed to be permanently magnetic or to be energized in particular. The machine has ...
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WO/2019/015777A1 |
The invention relates to an arrangement (1) comprising an asynchronous machine (5), which, in generator operation, is configured to feed electric power into an AC network (4). According to the invention, the asynchronous machine can be d...
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WO/2019/015812A1 |
The invention relates to control electronics for refrigeration systems having refrigeration components (K1,..., Kn) comprising a central electronic control module (10) having a rectifier (11) and an intermediate circuit capacitor (12) an...
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WO/2019/012915A1 |
This rotating electric machine drive system is provided with: a rotating electric machine (10) equipped with a rotor (12) in which each magnetic pole is constituted by a plurality of permanent magnets (22) and in which a salient pole por...
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WO/2019/007694A1 |
The invention relates to a method and a device for operating an electric motor, wherein: a power output stage has half bridges (4) supplied with operating voltage which each consist of a series circuit of a first and a second semiconduct...
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WO/2019/008758A1 |
[Problem] To provide a fluid transfer system with which it is possible to suppress a deterioration in efficiency. [Solution] A pump system 1 comprises: a pump 3 for transferring a fluid; a motor 4 which is provided with a plurality of wi...
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WO/2019/008637A1 |
Provided is a power conversion device having a first multi-phase inverter and a second multi-phase inverter which receive the supply of a DC voltage Vdc output from a DC power supply and perform power conversion to output an AC voltage. ...
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WO/2019/008756A1 |
The purpose of the present invention is to obtain a motor drive system capable of detecting an erroneous wire connection state. The motor drive system (100) for driving a motor (4) equipped with a plurality of stator windings (41, 42, 43...
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WO/2019/008932A1 |
The present invention addresses the problem of ripple current (ripple) occurring in the zero-phase current and increasing loss. A motor control system 1 is provided with: an inverter 100 for driving a motor 200 equipped with independentl...
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WO/2019/009195A1 |
The number of a plurality of coils of a consequent motor is a multiple of 6 and the number of a plurality of magnetic poles is an odd number of 3 or more. A control unit includes a first inverter that controls a current supplied to a fir...
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WO/2019/006452A2 |
An electrical combination, a power tool system, an electric motor, a battery pack, and operating and manufacturing methods. The electrical device may include a device housing, a motor supported by the device housing, the motor having a n...
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WO/2019/001915A1 |
A drive train for an electrically operated vehicle, having an electric motor (20), a first energy store (12) and a second energy store (14) which are each electrically connected to the electric motor (20), a first inverter (16) and a sec...
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WO/2018/235190A1 |
A thyristor startup device (100) is configured so as to accelerate a synchronous machine (20) from a stop state to a predetermined rotational speed by sequentially executing a first mode in which an inverter (2) is commutated by intermit...
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WO/2018/235187A1 |
A thyristor starting device (100) for accelerating a synchronous machine (20) from a stopped state to a prescribed rotation speed by sequentially executing a first mode for performing inverter (2) commutation by intermittently switching ...
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WO/2018/235586A1 |
A control device (30) is provided with: a pre-changing control unit for, when the number of poles before changing is selected as the number of poles of a rotating electric machine (10), controlling the currents flowing through stator win...
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WO/2018/229793A1 |
In one embodiment of the invention, two sets of identical stator windings are placed 30 electrical degrees apart and a third winding rated for lower voltage arbitrarily placed with respect to the former windings. A machine with tapped st...
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WO/2018/230542A1 |
[Problem] To provide a vector control-type motor control device that compensates for inverter dead time without requiring a tuning operation, improves current waveform distortion and current control responsiveness, and suppresses noise, ...
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WO/2018/230541A1 |
[Problem] To provide a vector control-type motor control device that compensates for inverter dead time without requiring a tuning operation, improves current waveform distortion and current control responsiveness, and suppresses noise, ...
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WO/2018/229874A1 |
A motor drive device (2) is provided with: a single-phase inverter (11) that applies AC voltage to a single-phase motor (12); a position sensor (21) that is attached to the single-phase motor (12) and that detects a rotor magnetic pole p...
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WO/2018/227307A1 |
A switching circuit for controlling charging input from a DC source to at least one inverter circuit, each inverter circuit corresponding to at least one respective battery, the switching circuit is provided with a switching device which...
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WO/2018/227270A1 |
A system for providing both driving and charging functionality by using a plurality of traction inverters and a plurality of energy storage devices coupled to one another across the electric motor; an AC/DC converter front-end circuit in...
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WO/2018/225402A1 |
When the present invention is started for use in a debugging mode such as parameter correction, the user enjoys both ease of use, due to operation being possible in a simple environment, as well as security. A power conversion device of ...
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WO/2018/227121A1 |
A load control device may control power delivered from a power source, such as an alternating-current (AC) power source, to at least two electrical loads, such as a lighting load and a motor load. The load control device may include mult...
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WO/2018/226025A1 |
The present invention relates to a motor driving apparatus and, more specifically, to a motor driving apparatus for selectively performing identical phase overmodulation compensation or minimum distance overmodulation compensation accord...
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WO/2018/220968A1 |
A control apparatus for an AC motor (10) comprises: a correction unit (220) that calculates a correction voltage for compensating for an output voltage error of a power converter (3) and corrects a voltage command; a voltage error featur...
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WO/2018/222398A1 |
According to one aspect of the invention, a motor control system for driving a motor for a powered air purifying respirator (PAPR) is provided. The motor control system includes a control printed circuit board assembly (PCBA) including a...
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WO/2018/210869A1 |
The invention relates to an inverter (1) having an intermediate circuit capacitor, the terminals of which are connected to supply lines (3, 4) for power supply and to a switching device (10) comprising a plurality of half-bridges (13), w...
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WO/2018/212219A1 |
Provided is a motor driving device having: a drive unit; a switching circuit for switching the path between a power supply and the drive unit to a conductive state and a cutoff state; an output circuit for outputting a voltage for instru...
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WO/2018/208057A1 |
Provided is a conductive noise suppression device which suppresses noise deterioration caused by a frequency of conductive common mode noise. A suppression unit (100) comprises: a first coil unit (110) for detecting a noise current of a ...
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WO/2018/207748A1 |
A drive shaft (20) rotationally drives a load. A drive support unit (50) rotationally drives the drive shaft (20) by an electromagnetic force generated by the passage of a current within a predetermined current range, and also supports, ...
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WO/2018/209009A1 |
An improved hybrid drive apparatus with a switched reluctance hub motor. The switched reluctance motor eliminates any drag caused by the existing magnetic fields of the motors used in the prior art by turning off the magnetic fields when...
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WO/2018/207330A1 |
An electric power steering device according to the present invention comprises: a multi-phase coil electric motor that causes a steering mechanism of a vehicle to rotate; and a control unit that has a plurality of inverter circuits drivi...
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WO/2018/203393A1 |
A control device for a motor, comprising: a power converter 4 for performing ON/OFF control on an upper switching element and a lower switching element in accordance with a drive command from a current controller 3, and thereby supplying...
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WO/2018/198739A1 |
A motor drive device for driving a motor, wherein: the motor drive device has a control unit for outputting a drive signal instructing the amount by which a motor is to be driven, a drive unit including a plurality of inverter circuits f...
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WO/2018/198928A1 |
A motor control apparatus 32 has: an on/off switch 22; a main control unit 36; a motor control circuit 38; an operating voltage generation circuit 40; a SW/AC monitoring unit 46; and an operating voltage monitoring unit 48. The SW/AC mon...
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WO/2018/198805A1 |
This fluid control device is provided with a motor which drives a fluid machine, and a motor control unit which controls the rotation of the motor. The motor control unit is provided with: a torque detecting unit which detects the torque...
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WO/2018/201118A1 |
An integrated power and electronics unit (IPEU) operable for providing output power for driving an electric motor of a drilling rig machine. The IPEU comprises a housing, a radiator, and a VFD. The radiator is mounted within the housing ...
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WO/2018/195003A1 |
The present invention discloses a vehicle. The vehicle includes an AC electric machine configured to generate traction driving force, a DC bus configured to provide a DC voltage, an inverter, and a controller. The inverter is coupled wit...
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WO/2018/191108A1 |
The systems and methods described herein relate to electrical circuits. A system (e.g., inverter current system.) is provided. The system includes plural inverters connected to a common bus and at least one capacitor. The inverters are c...
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WO/2018/186686A1 |
Disclosed herein are a compressor driving apparatus and a refrigerator including the same. A compressor driving apparatus includes: a plurality of switching elements; an inverter for converting direct current (DC) power into alternating ...
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WO/2018/184814A1 |
The present invention relates to an inverter arrangement and to the actuation of an inverter by means of space vector modulation. In this case, a voltage space vector that is to be formed can also be formed, in particular, through combin...
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WO/2018/187346A1 |
A drive circuit for an electric pump motor is provided. The drive circuit includes an inverter and a contactor. The inverter is configured to supply variable frequency current to the electric motor. The contactor is configured to supply ...
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WO/2018/185877A1 |
This motor control device is provided with: a power conversion circuit which applies a voltage to a motor in response to a voltage command value; a current detection means which outputs a current detection value, i.e. a value obtained by...
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WO/2018/180238A1 |
A power conversion device converts a power from a power supply to a power supplied to a motor having n-phase (n is an integer of 3 or more) windings, one ends of which are connected to each other in a Y-connection, and is provided with: ...
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WO/2018/179662A1 |
The present invention relates to a method in which, when converting power supplied from a power supply to a power for driving an AC rotating electric machine, an output voltage is raised with the increase of the rotational speed of the A...
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WO/2018/181332A1 |
The objective of the present invention is to reduce noise in the audible band generated in a rotating electrical machine in accordance with a carrier frequency, while suppressing a deterioration in the overall electrical efficiency of an...
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