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WO/2020/039720A1 |
The purpose of the present invention is to provide a motor control device which can estimate a delay with high accuracy and suppress an influence of the delay, even when there is a disturbance torque or a fluctuation in delay time. To th...
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WO/2020/035293A1 |
The invention relates to a method for operating a synchronous motor excited by permanent magnets, wherein a desired voltage vector having a desired value is calculated in such a way that the power limitation is maintained for the best po...
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WO/2020/035569A1 |
A description is given of a method and a device for assigning the inductance or admittance to the rotor position of a synchronous machine, comprising a stator and a rotor with or without permanent magnets, wherein the synchronous machine...
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WO/2020/035693A1 |
A control system for an electrical motor comprises a rotor, a stator having a plurality of phase windings, and an inverter for applying voltage to the plurality of phase windings by connecting individual phase windings to a first or seco...
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WO/2020/032084A1 |
This motor drive device is provided with a motor having a rotor and a stator, an inverter electrically connected to the motor, and a control device for controlling the inverter. The control device has: an impedance observer for estimatin...
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WO/2020/031526A1 |
One embodiment of a drive control device is a drive control device for controlling driving of a three-phase motor, the drive control device comprising: an imbalance calculation unit that calculates an electrical imbalance between the pha...
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WO/2020/032260A1 |
[Problem] To suppress load on a power supply for supplying power supply current to an electric motor even if variation in load occurs. [Solution] In the motor control device, an estimated value of power supply current supplied from a pow...
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WO/2020/019741A1 |
Disclosed is an N phase N+1 bridge arm inverter comprising N+1 bridge arms. Each bridge arm comprises: an upper bridge arm power switch device and a lower bridge arm power switch device. In each bridge arm, an upper node of the upper bri...
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WO/2020/020924A1 |
The present invention concerns a method for checking the setting of an angular position sensor of a rotor of a drive system of a vehicle, said drive system comprising a physical angular position sensor intended to measure the angular pos...
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WO/2020/016002A1 |
The invention relates to a method for estimating the speed and position of a rotor (50) of a wound-rotor synchronous machine (50) powered by a three-phase electric power network, comprising: - a step of injecting, into the three-phase el...
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WO/2020/016074A1 |
The invention relates to a drive unit (1). The drive unit (1) has at least two permanently excited synchronous motors (11, 12), at least two asynchronous motors (13, 14) and a transmission unit (20). The two permanently excited synchrono...
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WO/2020/012644A1 |
This control device for an electric power steering device controls an inverter on the basis of a three-phase voltage command obtained in such a way that: three-phase current flowing through a synchronous motor is converted to d-axis curr...
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WO/2020/011577A1 |
Systems and methods for providing open loop motor control for an electromechanical brake when closed loop motor control fails. The method includes determining, with an electronic controller, whether a rotor position sensor or a current s...
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WO/2020/009525A1 |
The present invention relates to a drainage pump driving apparatus and a laundry treatment machine including same. A drainage pump driving apparatus according to an embodiment of the present invention comprises: a converter configured to...
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WO/2020/003560A1 |
This power conversion apparatus comprises: a current detection unit which controls a load device by a position sensorless vector control and detects a current in the load device; a current detection/calculation unit which calculates, on ...
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WO/2020/003771A1 |
The motor control device according to the present disclosure determines, on the basis of a torque command value, a command value for a current vector in a dq coordinate system which rotates in synchronization with a rotor. The motor cont...
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WO/2020/003772A1 |
In an embodiment, the motor control device according to the present disclosure determines, on the basis of a torque command value, a command value for a current vector in a dq coordinate system which rotates in synchronization with a rot...
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WO/2020/001945A1 |
The invention relates to a method for determining the position (ӨR) and the rotational speed (nR) of a rotor of an electrical machine during an active short circuit and a rotor-state determining device (10) designed to carry out the met...
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WO/2020/003770A1 |
In an embodiment, the motor control device according to the present disclosure is a motor control device (100) that determines, on the basis of a torque command value, a command value for a current vector in a dq coordinate system which ...
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WO/2019/242407A1 |
Provided by the present invention is a method for controlling a speed regulation system of an asynchronous motor on the basis of a Buck-Boost matrix converter (BBMC). The method comprises steps of: detecting the actual rotational speed o...
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WO/2019/244370A1 |
Provided are induction electric motor overheat monitoring method and device that make it possible to detect induction electric motor overheat only from the detected value of a current sensor without requiring many sensors as in conventio...
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WO/2019/243265A1 |
The invention relates to a method for controlling, by means of field-oriented control, an active rectifier electrically connected to a stator of a generator of a wind turbine. The generator has a rotor mounted for rotation about the stat...
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WO/2019/242733A1 |
A method and device for calibrating a current of a permanent magnet synchronous motor. The method comprises: obtaining an inflection-point rotating speed at which the permanent magnet synchronous motor enters a weak magnetic area from a ...
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WO/2019/240826A1 |
A 3-phase motor driver circuit has a first input to be coupled to an output of a first phase current sensor, and a second input that represents a zero reference. A controller adjusts one or more of a first phase voltage, a second phase v...
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WO/2019/239657A1 |
When controlling the driving of a permanent magnet synchronous motor, in order to estimate magnet's magnetic flux with high accuracy and robustness against harmonic components of induced voltage and errors in setting constants for resist...
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WO/2019/237868A1 |
A vibration suppression method for a servo motor and a load multi-stage transmission system. N + 1 vibration suppression filters are used with respect to N fixed vibration frequencies and one vibration frequency that varies with a load p...
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WO/2019/233021A1 |
A motor control method and apparatus, an electronic governor (20), and an unmanned aerial vehicle (100). The method comprises: acquiring a current battery voltage Udc and a q-axis voltage input instruction value uqref0, and obtaining a c...
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WO/2019/230818A1 |
In an embodiment of the present invention, a motor control device controls a permanent magnet synchronous motor (100) which has a stator (100S) and a rotor (100R), and said motor control device comprises a processor (90) and memory (95),...
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WO/2019/227813A1 |
A motor starting method and device, an electronic speed regulator (20), and an unmanned aerial vehicle (100). The method comprises: in the period from 0 to t0: taking a first specified voltage as a current q-axis voltage; performing clos...
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WO/2019/227863A1 |
A control system and a method for a permanent magnet synchronous traction drive system. The control system comprises a sampling unit and a controller, the sampling unit collecting an operational excitation current and an operational torq...
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WO/2019/229885A1 |
A permanent-magnet synchronous motor (100) is provided with: a main inverter circuit (3) that converts direct-current power to three-phase alternating-current power by switching a plurality of transistors (31–36); a motor body (20) tha...
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WO/2019/227179A1 |
A method of facilitating control of a multi-phase electric machine under fault conditions of one or more open phases, the method including the steps of receiving unbalanced current data from an optimisation engine into a stationary trans...
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WO/2019/227860A1 |
The present invention provides an identification method and an identification device for a permanent magnet flux linkage of a permanent magnet synchronous motor, and a computer readable storage medium. The identification method for the p...
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WO/2019/225373A1 |
This motor drive device for sine wave driving a three-phase brushless motor is configured to find a phase current value of each of the phases with a single current sensor. The motor drive device for sine-wave driving a three-phase brushl...
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WO/2019/218980A1 |
A permanent magnet motor, comprising a stator, a rotor, and a control circuit. The stator uses three-way water cooling control; a first permanent magnet and a third permanent magnet comprised in the rotor are made of different materials ...
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WO/2019/218389A1 |
Disclosed in the present invention is a virtual voltage injection-based speed sensor-less driving control method for an induction motor: first injecting a virtual voltage signal into flux linkage and a rotational speed observer of a moto...
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WO/2019/220798A1 |
This rotary electric machine 10 is provided with: a stator 40; armature windings 50u, 50v, 50w wound around the stator; a rotor 20 having a plurality of poles; and a control unit 100 that controls the rotation of the rotor by controlling...
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WO/2019/216050A1 |
A motor control device according to an aspect of the present invention is provided with: an inverter that drives a motor; and a control arithmetic unit that calculates a current command value indicating a current supplied from the invert...
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WO/2019/214777A1 |
The invention relates to a method for generating and/or compensating for vibrations by means of electric machines, in particular by means of electric motors, wherein actual values for current components are obtained via a power electroni...
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WO/2019/210854A1 |
A zero self-learning method for a position sensor of a synchronous reluctance motor, comprising the following steps: step 1: determining the position of a motor, and controlling current to lock a d-axis position of the motor; step 2: det...
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WO/2019/206551A1 |
The invention relates to a device for protecting an electrical machine in the event of a fault, the electrical machine having six phase terminals. The device has a monitoring unit for detecting a fault of the electrical machine and a swi...
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WO/2019/207678A1 |
An inverter control device (3) that controls an inverter (1) for driving a motor (2) that is a synchronous motor, wherein the inverter control device (3) comprises: a torque calculating unit (34) that calculates a load torque on the basi...
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WO/2019/208007A1 |
This motor drive device performs stable current control even when an external disturbance occurs, while suppressing steadily occurring current ripples. The motor drive device 100 is provided with a power conversion circuit 103 for drivin...
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WO/2019/205112A1 |
Disclosed are an air compressor, and an electric motor control method and device for an air compressor, which are applicable to the technical field of air compressors. The method comprises the following steps: controlling the start of an...
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WO/2019/201961A1 |
A method of determining an offset between an angular position indicated by a rotary position sensor assembly secured directly or indirectly to the rotor of a multiphase permanent magnet AC motor and an actual electrical position of the m...
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WO/2019/204501A1 |
A brushless, self-excited synchronous field winding machine is presented. The AC stator is configured with four or more phases to produce independent magnetic fields at different spatial harmonics. Windings in the rotor are configured to...
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WO/2019/202188A1 |
The invention describes a new method and device for determining torque, speed and energy losses of three-phase asynchronous electric motors, from the direct measurement of stator currents, with the motor in operation.
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WO/2019/196352A1 |
A motor acceleration method and apparatus, and an unmanned aerial vehicle. The method comprises: performing closed loop control on a d-axis current to obtain a current d-axis voltage; determining a q-axis voltage change coefficient K, wh...
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WO/2019/198507A1 |
This control device for controlling a motor is provided with: a rotation information calculation unit; an average load torque calculation unit; a normalized torque pattern storage unit; an allowable rotational speed fluctuation range sto...
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WO/2019/198411A1 |
This control device for controlling a motor is provided with: a rotation information calculation unit; an average torque calculation unit; a normalized torque pattern storage unit; an allowable rotational speed fluctuation range storage ...
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