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WO/2020/188693A1 |
This power converter comprises a main circuit unit, a control unit (12), a current sensor, and a half-wave rectification unit. The control unit (12) comprises current frequency calculation units (42, 51), and monitoring units (43, 52). T...
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WO/2020/188880A1 |
The present invention improves the operation performance of an electric motor drive system for driving a load via a gear by outputting an appropriate torque in a backlash zone. This backlash control device of an electric motor drive syst...
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WO/2020/184598A1 |
An embodiment of the present invention provides a control device comprising: an electric detection unit which detects an electric physical quantity relating to a head capacitor provided between a DC power supply and an inverter switching...
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WO/2020/183542A1 |
This power converter comprises: a rectifier that rectifies AC voltage supplied from an AC power supply; a smoothing capacitor that smooths the voltage rectified by the rectifier; an inverter section that has a plurality of switching elem...
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WO/2020/184285A1 |
Switching elements (Su, Sv, Sw, Sx, Sy, Sz) are controlled so that at least two maximum points appear in a power supply half cycle in a waveform obtained by combining the second harmonic, the fourth harmonic, and the sixth harmonic of th...
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WO/2020/184378A1 |
This power conversion device is provided with: a rectifier for rectifying the AC voltage supplied from an AC power supply; an inverter unit having a smoothing capacitor for smoothing the voltage rectified by the rectifier and a plurality...
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WO/2020/182339A1 |
The invention relates to a drive system comprising a converter, in particular an AC/DC converter, and an inverter for supplying power to an electric motor which is electrically connected to the AC voltage-side terminal of the inverter, w...
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WO/2020/182220A1 |
Disclosed is a supercapacitor-based automatic energy-saving system of a direct-current high-voltage beam pumping unit. The system comprises a frequency converter, wherein a direct-current bus of the frequency converter, a direct-current ...
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WO/2020/178181A1 |
The invention relates to an electric drive comprising at least one electric motor (5) having one or more electric coils (2, 3, 4); an electrically chargeable electrical energy store (11); a control unit (22); an electrical switch (27) wh...
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WO/2020/179818A1 |
In a driving control device for an electric motor according to the present invention, two drive control systems, each including a control circuit, an inverter, a power supply connector, and a ground connector, are provided to the two win...
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WO/2020/177269A1 |
An adaptive control parameter adjustment method for a BBMC asynchronous electric motor speed regulation system, the method comprising the following steps: by taking control parameters of finite time control as optimization objects and ta...
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WO/2020/174671A1 |
This motor drive device (101A) is provided with: an inverter output unit (6) for driving a motor (13) by the power supplied from a power supply generation unit (2); a voltage detection unit (8) for detecting the voltage value of a DC vol...
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WO/2020/174520A1 |
This electric motor driving device (101A) drives an electric motor (3) and can switch the connection states of the stator windings (61 to 63) of the motor (3). The electric motor driving device (101A) is provided with: relays (11 to 13) ...
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WO/2020/174884A1 |
An angular speed detection unit (9) for detecting a rotation speed of an electric motor (6), has a rotation speed calculation unit (18) that detects a rotation angular speed of the electric motor (6) on the basis of an output pulse of a ...
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WO/2020/173733A1 |
A system for transmitting a value by means of a pulse-width-modulated signal is shown. The system comprises a transmitter and a receiver. The transmitter is configured to capture the value and to output a pulse-width-modulated signal, th...
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WO/2020/170379A1 |
The present invention comprises an inverter (30) for driving a motor (7) that can switch connection of windings thereof and drives a load element having a periodically fluctuating load torque, wherein: the inverter (30) is controlled suc...
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WO/2020/170983A1 |
This electric motor drive device controls driving of an electric motor having open windings in at least two phases, end points of which are open with respect to one another. A switching mediation unit (303) determines switchover between ...
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WO/2020/170302A1 |
This electric motor drive device is provided with: an inverter unit (3a) and an inverter unit (3b) for converting, using a plurality of switching elements, the DC voltage supplied from a DC power source (1) to a three-phase AC voltage an...
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WO/2020/170564A1 |
In this motor actuator, a first power supply relay (51) and a second power supply relay (52) are provided to a power feeding line (L1A) for supplying a power supply from an in-vehicle battery (8) to an inverter (10) by being connected in...
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WO/2020/170315A1 |
This power control method calculates a duty command value used for a PWM control, generates a PWM signal in accordance with the comparison result between the duty command value and a carrier signal, and drives an inverter on the basis of...
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WO/2020/161945A1 |
The present invention addresses the problem of providing a power conversion device including a plurality of inverter circuits connected in parallel with a load, wherein said power conversion device can be controlled by a smaller number o...
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WO/2020/163085A1 |
A DC monitoring system measures and analyzes VFD (Variable Frequency Drive) operational characteristics. The VFD receives three-phase input power from a standardized source and to provide variable frequency three-phase output power to a ...
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WO/2020/163081A1 |
A DC monitoring system is configured to measure and analyze VFD (Variable Frequency Drive) operational characteristics. The VFD is configured to receive three-phase input power from a standardized source and to provide variable frequency...
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WO/2020/162112A1 |
This motor actuator of the present invention has a first solid state relay and a second solid state relay for which the orientation of a parasitic diode is reversed between a battery and an inverter, and when the supply of power from the...
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WO/2020/158128A1 |
This rotating electric machine drive device (20) is provided with: a first inverter unit (22) equipped with a plurality of switching elements (24-34) corresponding to the respective phases of a motor/generator (10); a second inverter uni...
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WO/2020/157919A1 |
The machine learning device (10) according to the present invention learns the state variables of a motor drive device (70) for driving a motor (80). The motor drive device (70) includes a rectifier circuit (71), an electrolytic capacito...
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WO/2020/156782A1 |
The invention relates to a method for controlling an inverter which is electrically connected to an electric motor, having the following steps: defining a modulated voltage (S1) for the inverter, said voltage being based on a first switc...
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WO/2020/153152A1 |
A micro computer stores offset correction values that correct offset of detected current associated with pulse shift for each of maximum phase detection current having the longest energization time among three phases and minimum phase de...
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WO/2020/153313A1 |
The purpose of the present invention is to provide a power conversion device capable of reducing noise that occurs when increasing the temperature of a storage battery is controlled. This power conversion device (10) is provided with: a ...
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WO/2020/151968A1 |
The invention relates to the actuation of an electric machine with a change between time-synchronous PWM clocking and angle-synchronous block clocking. It is proposed to provide an angle-synchronous clocking with adjustable voltage indic...
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WO/2020/151883A1 |
The invention relates to a method for operating switching elements (40 to 56) of a multilevel energy converter (28) which uses at least three electric potentials (22, 24, 26) and to which a multiphase electrical machine (30) is connected...
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WO/2020/152792A1 |
A drive apparatus (101) drives an electric motor (1) having a coil (3). The drive apparatus (101) has: an inverter (103) that applies voltage to the coil (3); and a control device (50). The control device (50) controls a carrier frequenc...
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WO/2020/151912A1 |
The invention relates to a drive system having a first transformer (1), a controller (2), and a converter (6) for feeding an electric motor, wherein the first transformer (1) supplies a DC voltage to the controller (2), a second transfor...
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WO/2020/148925A1 |
This power conversion device is provided with: a current detection unit (13) for detecting the current flowing through a rotating electric machine (3); a switching pattern determination unit (14) for determining a switching pattern on th...
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WO/2020/148173A1 |
A power supply control circuit (200) of a three-phase brushless DC (BLDC) motor (130), characterized in that the control circuit (200) comprises means for calculating the DC current consumption I s based on a phase current signal I shunt...
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WO/2020/148825A1 |
This motor control device has: an inverter circuit for converting a DC voltage to an AC voltage and supplying the AC voltage to a plurality of motors connected in parallel; a current detector for detecting the motor current flowing throu...
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WO/2020/145078A1 |
This control device controls a rotating electric machine that comprises a rotor having a magnet part and a stator having a slotless structure with a stator winding. The control device comprises a temperature estimation unit (S10, S20), a...
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WO/2019/146437A9 |
Provided is an inverter device which exhibits excellent tracking performance in the event of load variation. The inverter device is provided with: an inverter circuit (20); d, q/u, v, and w conversion units (50); a line voltage effective...
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WO/2020/141569A1 |
In this thyristor starting device, an inverter converts DC power given from a converter via a DC reactor to AC power of a variable frequency and supplies the resulting power to a synchronous machine. A control unit is configured to contr...
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WO/2020/137567A1 |
According to the present invention, a first torque calculation unit 114 calculates, on the basis of a DC current DC1, a torque TQ_DC that is currently generated by a motor 106. A second torque calculation unit 115 calculates, on the basi...
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WO/2020/137510A1 |
One aspect of a drive control device for controlling driving of a motor includes: a first inverter connected to one end of a winding of the motor; a second inverter connected to the other end with respect to the one end; a first control ...
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WO/2020/137509A1 |
This drive control device, for controlling driving a motor, is provided with a first inverter which is connected to one end of the winding of the motor, a second inverter which is connected to the other end of the winding, a first contro...
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WO/2020/133840A1 |
The present application provides a high-integration power module and an air conditioner. The high-integration power module comprises a substrate, and a power factor correction element, a rectifier bridge, a compressor inverter and a blow...
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WO/2020/137511A1 |
One embodiment of this drive-controlling device is a drive-controlling device that controls driving of a motor, wherein the drive-controlling device comprises: a first inverter connected to one end of a winding of the motor; a second inv...
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WO/2020/129170A1 |
The present invention comprises: switches (61, 62, 63), which are mechanical switches that can switch the connection state of a motor (7); an inverter (30), which generates AC voltage from DC voltage and outputs the AC voltage to the mot...
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WO/2020/129127A1 |
Provided is an electric motor comprising: a rotor having a rotating shaft inserted therein; a stator which is disposed around the rotor and provided with three-phase windings; an inverter including three sets of upper-arm switches and lo...
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WO/2020/129651A1 |
An electric motor system 1 is provided with: a battery 10; an inverter 12; an electric motor 14; a zero-phase switching arm Z; and a control unit 18. The inverter 12 converts a DC power output from the battery 10 into a three-phase AC po...
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WO/2020/121183A1 |
Operating method (10) for a compressor (101) of a refrigerating machine (100), said compressor (101) comprising an electric motor (102) and a power supply device (103) configured to modulate a supply voltage (V) and/or current (I) and/or...
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WO/2020/120233A1 |
The invention relates to a motor control device (3) for a motor unit (2) comprising: a control unit (4); a safety stage (S) for setting a safety state (STATE1, STATE2) of the motor unit (2); a driver stage (5); and a power bridge circuit...
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WO/2020/116210A1 |
A power conversion device according to an aspect of the present invention is for converting power from a power source into power to be supplied to a motor which has a winding wire of n phases (n is integer of 3 or more), and is provided ...
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