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Matches 1 - 50 out of 32,214

Document Document Title
WO/2019/091686A1
The present invention relates to an electric drive system, and to a control apparatus for such an electric drive system. In this case, provision is made for the operation of an electric machine with two independent inverters. Each of the...  
WO/2019/093300A1
[Problem] To provide a brushless DC motor identification method by which information about a brushless DC motor can be identified while handshakes are not especially needs to be performed. [Solution] The identification method according t...  
WO/2019/087243A1
This electric motor drive device (2) has: a connection switching device (60) for switching the connection states of the windings (71-73) of an electric motor (7) by performing switching operation on switches (61-63) during rotational ope...  
WO/2019/087644A1
[Problem] To provide a motor control device and a motor control method enabling torque control by a command value even during switching of control modes, suppressing torque variation during the switching, and excellent in responsiveness....  
WO/2019/087362A1
Provided is a SVPWM method that is capable of reducing losses in a DC power source and an inverter. According to the present invention, an inverter has three or more legs that supply phase currents to respective phase coils of a multipha...  
WO/2019/084678A1
A system for simultaneously controlling a plurality of PM AC motors includes a single VFD operatively connected to a power source. The single VFD is programmable to have predetermined operating conditions. The plurality of PM AC motors i...  
WO/2019/085106A1
An electric motor control system and an inverter air conditioner. The electric motor control system comprises a rectifier (2), a filter circuit (6), an operation control portion (5), several inverters (4, 8), and current sampling portion...  
WO/2019/080998A1
The invention relates to a motor electric control unit (1) for an electric motor controlled by PWM with a PWM frequency, wherein each PWM period (A,B,C,D,E,F,G,H,I,J,K) has pre-calculated duty cycles and with a motor control frequency, w...  
WO/2019/083636A1
A motor drive for driving a permanent magnet electrical machine includes an inverter having switches that are selectively operated to control current flow and terminal voltages in the electrical machine and a controller operatively conne...  
WO/2019/025740A3
Method for controlling an inverter (18) configured to power electrically a motor (12) comprising a stator and a rotor capable of being rotated relative to the stator when the motor (12) is electrically powered, the inverter (18) comprisi...  
WO/2019/083015A1
A motor control device for performing PWM control of an inverter for driving a three-phase brushless motor on the basis of a current command value, wherein the motor control device is provided with: a voltage command value computation un...  
WO/2019/082718A1
This motor drive device is provided with a brushless DC motor (4) which has a rotor, an inverter circuit (3) which is configured comprising six switching elements (3a-3f) and which supplies power to the brushless DC motor (4), a position...  
WO/2019/081503A1
An electrical converter (10) comprises three branches (12) of series-connected converter cells (14), each converter cell (14) comprising a rectifier (34), a DC link (36) with a DC link capacitor (C) and an inverter (38), wherein the thre...  
WO/2019/082272A1
This electric motor driving apparatus is provided with: a wire connection switching unit that switches among wire connection states of a stator winding; an inverter; a control device that controls the wire connection switching unit and t...  
WO/2019/081046A1
In order to improve a method for selecting a frequency converter for a refrigerant compressor unit, comprising a refrigerant compressor and an electric drive motor, in such a way that the frequency converter is selected to meet applicati...  
WO/2019/083050A1
Provided in the first embodiment according to the present invention is an inverter system that directly tracks an optimum efficiency of a three-phase permanent magnet motor (synchronous motor) in a stationary coordinate system in a simpl...  
WO/2019/083629A1
One example includes a half-bridge switching circuit system. The system includes a first plurality of switches arranged between a first rail voltage and an output on which an output voltage is provided and a second plurality of switches ...  
WO/2019/082535A1
The present invention concerns a method for on-line monitoring a DC- bus capacitor having a diode rectifier front end, the three-phase inverter controlling the three-phase power provided to a load at each switching cycle using a space ve...  
WO/2019/082441A1
In acceleration and deceleration operations of a motor, a problem has been posed in that a power converter gets into overcurrent or overvoltage when an inertia moment value of a machine mounted to the motor is large. In order to solve th...  
WO/2019/077059A1
The invention relates to a method for determining an error voltage of a current converter to which a load, in particular in the form of a three-phase machine such as an asynchronous machine, is connected, is determined and if necessary c...  
WO/2019/077873A1
High-side switching elements (700H, 701H) and low-side switching elements (700L, 701L) used as switching elements (70) constituting the upper/lower arms of a plurality of phases constitute a semiconductor module (40). This control device...  
WO/2019/077700A1
The purpose of the present invention is to optimally perform an intermittent electrification operation of inverters and a voltage boosting operation of a converter in accordance with the input or output. Accordingly, a power conversion d...  
WO/2019/071955A1
Disclosed in the present invention discloses a system and method for fault-tolerant control under five-phase permanent magnet synchronous motor open-circuit faults. The method comprises: employing a rotation speed controller to obtain a ...  
WO/2019/070068A1
Provided is a motor module that makes it possible to achieve high motor output. This motor module 1000 comprises: a motor 200 that has windings of n phases (n being an integer that is 3 or greater); a first circuit board CB1 that is conn...  
WO/2019/069894A1
Provided is a switch element having: a switch core material 61 that is formed from a superconducting material capable of transitioning from a normal conducting state above the critical field to a superconducting state below the critical ...  
WO/2019/070066A1
Provided is a motor module that can improve heat dissipation. This motor module 1000 comprises: a motor 200 that has n phases of windings (n being an integer that is 3 or greater); a first circuit board CB1 that is connected to a first p...  
WO/2019/070062A1
This motor control device generates three-phase drive currents having different phases according to a combination of ON/OFF operations of a plurality of switching elements, and supplies the three-phase drive currents to three-phase coils...  
WO/2019/070065A1
Provided is a motor module that can suppress reductions in motor output when a power supply system and/or an inverter has failed. This motor module 1000 comprises: a motor 200 that has n phases of windings (n being an integer that is 3 o...  
WO/2019/070064A1
Provided is a motor module in which the redundancy of a power source is implemented and the efficient voltage use rate is improved. The motor module according to the present disclosure comprises: a motor having n-phase (n is an integer o...  
WO/2019/068330A1
The invention relates to a drivetrain (1) for a motor vehicle comprising an electronic differential (2) with at least two electric motors (5, 6) having at least five phases, wherein a first electric motor (5) provides torque to a first r...  
WO/2019/070067A1
Provided is a motor module that makes downsizing possible. This motor module 1000 comprises: a motor 200 that has windings of n phases (n being an integer that is 3 or greater); a first circuit board CB1; a first inverter 120 that is mou...  
WO/2019/064766A1
The present invention provides a power conversion device equipped with two inverters, wherein when energizing the winding of a certain phase, the current induced in the winding of another phase is reduced. The power conversion device 100...  
WO/2019/064829A1
The present invention provides a power conversion device with which it is possible to detect failure of a switch element of an inverter in a shorter amount of time. This power conversion device 1000 comprises a first inverter 120, a seco...  
WO/2019/064830A1
Provided is a power conversion device with which it is possible to sense a fault in a switching element of an inverter in a reduced amount of time. The power conversion device 1000 is provided with a first inverter 120, a second inverter...  
WO/2019/064725A1
Provided is a power conversion device capable of detecting failure of switching elements in inverters in a shorter period of time. A power conversion device 1000 according to the present disclosure comprises: a first inverter 120; a seco...  
WO/2019/065171A1
This motor control circuit, which supplies a drive coil of a motor with a drive current, is provided with: a calculation unit which calculates a digital value indicating the magnitude of the drive current; a digital-to-analog conversion ...  
WO/2019/066021A1
According to the present invention, fail-safe control is properly performed even when one of switching elements of an inverter is off-circuited. This inverter control device (20) controls an inverter (10) that is connected to a direct cu...  
WO/2019/065882A1
According to the present invention, when a dynamo-electric machine (80) is in a state of rotation while a contactor (9) is in an open state, an inverter (10) is controlled so as to suitably stop the operation of the inverter (10). An inv...  
WO/2019/065859A1
According to the present invention, a power conversion device having a plurality of switching elements (Su, Sv, Sw, Sx, Sy, Sz) is provided with a control unit (40) for controlling a switching operation. In a waveform obtained by extract...  
WO/2019/064512A1
Provided are a data obtaining method, an inverter, and a rotating electric machine capable of managing the operation state of a device without complicating the configuration thereof. Therefore, the data obtaining method uses an inverter ...  
WO/2019/060859A1
A chiller assembly is provided. The chiller assembly includes a compressor (102), a condenser (106), an expansion device and an evaporator (108) connected in a closed refrigerant circuit. The chiller assembly further includes a motor (10...  
WO/2019/058675A1
This malfunction diagnosis method involves executing, for each of a plurality of switching elements: a step for determining whether the current flowing in the switching element when the switching element has been controlled to be in an o...  
WO/2019/058676A1
This malfunction diagnosis method involves executing, for each of a plurality of switching elements: a step for determining whether the voltage at the switching element when the switching element has been controlled to be in an on state ...  
WO/2019/058668A1
The motor control method according to the present disclosure obtains the n (n is an integer of 3 or more) phase currents of a first inverter, the GND current of the first inverter, the n phase currents of a second inverter, and the GND c...  
WO/2019/058677A1
This malfunction diagnosis method involves diagnosing whether a power conversion device that supplies power to a motor is malfunctioning. The power conversion device comprises a plurality of switching elements. The plurality of switching...  
WO/2019/059648A1
A motor control apparatus according to one embodiment of the present invention comprises: a current controller for generating a voltage command signal on the basis of a torque command for driving a motor and a fundamental wave current of...  
WO/2019/053992A1
Provided is a power conversion device which is capable of identifying which of a plurality of switch elements has failed. This power conversion device is provided with: a first inverter 120; and a control circuit 300 which controls on/of...  
WO/2019/053943A1
The purpose of the invention is to obtain, in a control device for a synchronous electric motor that switches the drive control of the synchronous electric motor between PWM drive control and rectangular wave drive control, a configurati...  
WO/2019/054026A1
Provided is a power conversion device which is capable of executing failure diagnosis on conduction paths on the basis of voltage measurement results. This power conversion device is provided with: a first inverter 120; and a control cir...  
WO/2019/051718A1
A frequency converter adapted to be connected to another frequency converter via a direct current bus is provided. The frequency converter comprises: a positive bus interface adapted to be interconnected with a positive bus interface of ...  

Matches 1 - 50 out of 32,214