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Matches 351 - 400 out of 31,963

Document Document Title
WO/2017/030020A1
[Problem] To provide an electronic control device equipped with a function for diagnosing short-circuit malfunctions in an inverter FET by means of a FET short-circuit detection unit and responding appropriately to the diagnosis result, ...  
WO/2017/029925A1
A motor unit equipped with: a motor; a drive circuit; a shunt resistor; a rotation command input terminal; a pulse output terminal; a current detection unit that detects the drive current measured by the shunt resistor; a drive control u...  
WO/2017/029694A1
A motor driving device 100 according to the present invention is provided with an inverter main circuit 4 for outputting AC power to each of a plurality of phases of a motor 3 having the plurality of phases. When the current flowing to a...  
WO/2017/025993A1
A motor controller comprises: a target current value generating part for generating a d-axis target current value and a q-axis target current value; a motor current value generating part for generating a d-axis motor current value and a ...  
WO/2017/024418A1
The invention relates to a method and system for controlling a synchronous machine by means of a multi-pulse cyclo-converter actuated by means of predictive control, the method comprising: acquiring the variables of state associated with...  
WO/2017/026061A1
The present invention is an electric motor drive device 100 which drives an electric motor 4 by using AC power converted from a DC power source 1, said electric motor drive device 100 being provided with: an inverter 5 that receives a pu...  
WO/2017/022081A1
A synchronous motor control device equipped with a voltage detector, a current detector, an inverter main circuit, and an inverter control unit 6, wherein the inverter control unit 6 is equipped with: a phase current reproduction unit 9 ...  
WO/2017/022083A1
A synchronous motor control device equipped with a DC power source 1, an inverter main circuit 2, a three-phase synchronous motor 3 driven by converting the direct current from the DC power source 1 to an alternating current using the in...  
WO/2017/017839A1
The motor driving device according to the present invention is provided with: an inverter for applying a voltage to a motor; and an inverter control unit for controlling a voltage outputted by the inverter. The inverter control unit cont...  
WO/2017/018811A1
The present invention relates to a motor driver comprising: a control unit for generating a gate control signal as a pulse width modulation (PWM) signal necessary for driving a motor; a gate driver for outputting a pair of driver signals...  
WO/2017/016692A1
The present invention relates to an apparatus for reducing and/or avoiding harmful bearing currents in an electrical machine (M), such as preferably a three-phase EC motor (M), having a rotor (2) and a stator (3) which is constructed in ...  
WO/2017/013117A1
The invention relates to a method for operating a frequency converter which is designed for controlling a rotary current motor, wherein the frequency converter comprises three half-bridges, each having at least two switching means. The m...  
WO/2017/013723A1
In order to provide noise reduction that takes into consideration the noise levels felt by people, by using a method for reducing output current noise in a power conversion device, this power conversion device comprises: a carrier freque...  
WO/2017/014063A1
It is necessary, when starting an electric motor, for a control to be performed in estimating the rotation position, as an electric motor cannot be started quickly at high torque. When an electric motor 5 stops rotating, a control device...  
WO2017010256A1
A drive device for a compressor is provided with: an inverter circuit (51) constituted from a plurality of switching elements (SW1, SW2, …, SW6); a drive unit (53) for switching the plurality of switching elements; a determination unit...  
WO/2017/009883A1
This AC motor control device comprises: an inverter including switching elements; a switching control means that controls the switching elements; and a phase detecting means that detects the rotor phase of the AC motor, wherein the switc...  
WO/2017/003071A1
Provided is an electric tool control method for tightening a nut by providing intermittent pulse torque after the nut is seated, wherein an electric motor is used as a means for providing the pulse torque, and the method comprises the st...  
WO/2016/206971A1
The invention relates to a method for controlling an electric drive, wherein the drive unit is monitored as to the occurrence of an acoustic interference signal while the drive is being controlled, and when an acoustic interference signa...  
WO/2016/207165A1
A method of controlling a compressor system (10) comprises a gas compressor (32) and an electrical variable-speed drive (30) supplied by an electrical grid (36) and driving the gas compressor (32). A method of controlling the compressor ...  
WO/2016/207936A1
A motor control device according to the present invention is provided with: a magnet-temperature detection unit (209) for detecting a magnet temperature of a motor (4); a magnetic-flux calculation unit (3081) for calculating a motor magn...  
WO/2016/203709A1
A driving device for a motor (12) equipped with a stator and a rotor, the rotor being rotated by the input of AC voltage, said driving device being equipped with: an inverter circuit (40) wherein units, which have switching elements (Tr1...  
WO/2016/201405A1
An electrical power system for a six-phase electric motor having a first set of three-phase windings and a second set of three-phase windings. A first pulse width modulator operates at a conversion frequency and at a first phase which co...  
WO/2016/198377A1
The invention relates to an electrical circuit, comprising a first power converter unit (12; 70), at least a second power converter unit (14; 76), an intermediate circuit (16; 72), which connects the power converter units (12, 14; 70, 76...  
WO/2016/199197A1
This power conversion device is provided with: an inverter 11, which converts a direct current voltage into an alternating current voltage, and applies the converted alternating current voltage to an electric motor 2; a power supply circ...  
WO/2016/195033A1
The objective of the invention is to reduce the impacts of transient currents generated when a modulation scheme is switched. When this rotating electrical machine control device (2), which switches a modulation scheme in accordance with...  
WO/2016/193092A1
An electrical motor system and a method for operating the electrical motor system are disclosed. The electrical motor system comprises a direct current (DC) source, a filter connected in parallel with the DC source and an electric motor ...  
WO/2016/194837A1
This DC-brushless-motor control device, which supplies a current to a winding of a stator of a three-phase DC brushless motor for rotating a negative-pressure-generating fan, is provided with: a rectification unit for rectifying alternat...  
WO/2016/194140A1
In an elevator equipped with an inverter for converting power from a power supply to alternating current and suppling the alternating current to and driving a synchronous electric motor that drives the elevator car, and for transmitting ...  
WO/2016/194399A1
The present invention addresses the problem that when the operation of a power conversion device has stopped due to the occurrence of a short-circuit accident, the user cannot identify the place where the short-circuit has occurred, that...  
WO/2016/190093A1
The purpose of the present invention is to reduce excess current in an inverter and a motor. Provided is a control device for an electric motor in which each phase winding is connected independently. The control device uses a zero-phase ...  
WO/2016/185924A1
A control unit (4) is capable of: generating a first switching signal based on a voltage command value and a first carrier wave (frequency Fc1), and a second switching signal based on the voltage command value and a second carrier wave (...  
WO/2016/185150A1
The method according to the invention relates to the control of an electrical machine (1) by PWM signals (C) of the type where the PWM signals are sampled at a variable sampling frequency (Fpwm). According to the invention, a step of cal...  
WO/2016/185601A1
The present invention is provided with: a control-start/stop-determining unit 11 that receives as inputs a start/stop request signal for controlling the starting and stopping of a motor 5 and information about the rotation speed of the m...  
WO/2016/181503A1
The purpose of the present invention is to obtain a power conversion device with which it is possible to suppress power consumption without wastefully consuming regenerative power even when there is no configuration for effectively using...  
WO/2016/181448A1
An AC rotating electric machine control device is provided with a plurality of power conversion circuits by which voltages applied to the multiphase armature windings of a plurality of groups are controlled for each of the multiphase arm...  
WO/2016/177507A1
The invention relates to a method for switching on a multi-phase electrical machine (110) in a motor vehicle. Said multi-phase electrical machine (110) comprises a rotor with a rotor winding (101) and a stator with a multi-phase stator w...  
WO/2016/174702A1
An AC rotating machine control device estimates, as an estimated rotational position, the rotational position of an AC rotating machine having N sets of three-phase windings, where N is a natural number of 2 or more. The control device i...  
WO/2016/170585A1
A control device equipped with a pair of switching elements for converting power from a power supply to AC power, and supplying the AC power to a load. This control device obtains a current or voltage signal supplied to the load, convert...  
WO/2016/166444A1
Method of controlling an asynchronous electric machine of a power train of an automotive vehicle, comprising the following steps: a torque request ( Ce #)and the speed of rotation of the asynchronous electric machine are determined, a re...  
WO/2016/166802A1
An electric drive device 1 comprises: a power conversion unit 20 provided with an inverter 23 having an upper arm 23a and a lower arm 23b that control the operation of an electric motor 2; and a drive control unit 30 that controls the po...  
WO/2016/167111A1
When an irregularity is detected in an air conditioner and driving of an actuator is requested to be stopped, driving of the actuator, which is driven by an inverter, is stopped with greater reliability. A drive signal is outputted to a ...  
WO/2016/165719A1
A method of controlling a full-scale converter system in which both the grid-side inverter unit and the generator-side inverter unit have a series-connection of parallel inverters and form a generator-side and grid-side voltage-center-po...  
WO/2016/163459A1
An electrical motor device (1) that is provided with: a rotating electrical machine (4) that has three-phase windings (7U-7W); a switch (S) that turns application of voltage to the windings (7U-7W) on and off; a control means (6) that gi...  
WO/2016/163788A1
A three-phase voltage-type inverter is disclosed. The three-phase voltage-type inverter comprises: a conversion unit for converting a three-phase AC current to a two-phase DC current; a calculation unit for detecting the angle between a ...  
WO/2016/163458A1
In the present invention, windings (7U-7W) are provided with respective intermediate taps (8U-8W) so as to allow a rotating electrical machine (4) of an electromotive power-generator device (1) to vary actual turn count by phase. A drive...  
WO/2016/157391A1
This drive device is provided with: a rotary electric machine; a matrix converter having a power conversion unit that converts power from an alternating current power supply into alternating current power for output; a battery connected ...  
WO/2016/157306A1
This control device (10) for an AC rotating machine (1) comprises: a current detecting unit (3); a command generating unit (4) that generates a voltage command using an inertia moment J; a speed estimating unit (6) that calculates an est...  
WO/2016/155694A3
The invention relates to a circuit and to a method for operating an electrical machine (M) connected to at least three phases (L1, L2, L3) of a power supply network by means of a frequency converter (1) that has a DC link (3), wherein, b...  
WO/2016/155927A1
The invention relates to a method for estimating a temperature contribution of an inverter used to energize an electrical machine, in particular a synchronous machine. The method comprises the steps for calculating oscillating temperatur...  
WO/2016/158133A1
Provided is an electric tool in which peak electric current can be controlled without increasing the size of the tool body. In an electric circular saw (100) provided with a motor (1), a rectifying circuit (91) for rectifying AC voltage ...  

Matches 351 - 400 out of 31,963