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Patent Searching and Data


Matches 1 - 50 out of 10,017

Document Document Title
WO/2019/008838A1
The purpose of the present invention is to estimate, in a short time and with a small torque shock, an initial speed including zero speed during speed-sensorless vector control of an induction motor. When applying an AC voltage to an ind...  
WO/2019/008242A1
The invention relates to a method for controlling a three-phase voltage inverter receiving a direct input voltage, the method comprising a step (40) of correcting the reference voltage vector comprising: - a step (44) of computing at lea...  
WO/2019/009194A1
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...  
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...  
WO/2018/227972A1
By presuming the phase of a rotor (R) when stopping, the present invention enables starting in a smooth synchronously rotating manner and control without a sensor, even if no position detection unit is additionally used. The washing mach...  
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, ...  
WO/2018/227769A1
A method for starting a position sensorless BLDC motor, comprising step A: reset: selecting a voltage Vds on a ds shaft, keeping the voltage Vqs of a qs shaft equal to 0, and allowing the motor to return to a preset position; step B: giv...  
WO/2018/230140A1
Provided is a power tool comprising a permanent magnet synchronous motor and a control unit for controlling the operation of the permanent magnet synchronous motor, wherein the control unit includes a limiting means for limiting the elec...  
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, ...  
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...  
WO/2018/225139A1
In order to reduce deviation of a correction quantity at the time of calculating the magnetic pole position correction quantity of a permanent magnet type rotating electrical machine, and accurately perform magnetic pole position correct...  
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...  
WO/2018/220805A1
This control method for an electric vehicle comprises: calculating a first torque command value by a feedforward arithmetic operation based on a motor torque command value; detecting a rotational angular speed of a first motor; and estim...  
WO/2018/210203A1
The invention relates to a vector control method and system based on a rotary transformer, and a motor system. The method comprises: acquiring a current inputted into a motor, and acquiring an orthogonal voltage of a rotary transformer; ...  
WO/2018/211596A1
This synchronous electric motor control device that controls operations of a synchronous electric motor has: a control unit that outputs a voltage command value corresponding to a speed command value; and an inverter that supplies, in ac...  
WO/2018/207157A3
A method for controlling pressure and flow of hydraulic fluid through a hydraulic control unit comprises receiving a pressure command from an electronic control unit. The received pressure command is processed to generate a pressure- bas...  
WO/2018/207157A2
A method for controlling pressure and flow of hydraulic fluid through a hydraulic control unit comprises receiving a pressure command from an electronic control unit. The received pressure command is processed to generate a pressure- bas...  
WO/2018/203387A1
During a time period from start of activation of a permanent magnet synchronous electric motor (4) to completion of the activation, an activation control unit (17) calculates an α-axis induced voltage (Eα) and a β-axis induced voltage...  
WO/2018/202508A1
The invention relates to a method and device for determining the position angle of a rotor (2) in an electric synchronous machine (1). The device is designed to comprise: a voltage generator (12) for generating electrical voltage pulses ...  
WO/2018/198694A1
This control device for outputting a voltage command value has: a feedback controller that performs a feedback control on the basis of a current value and outputs a first voltage value; a feedforward controller that is constructed using ...  
WO/2018/193697A1
The present invention relates to the speed sensorless vector control of an induction motor and the purpose thereof is to provide a speed estimation method capable of preventing torque shortage caused by the coil temperature inside the in...  
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...  
WO/2018/180087A1
This method for correcting the detected rotation angle of a PM motor includes: a step (S3) of imparting, to a PM motor, a command value of a prescribed rotation speed and a prescribed torque command value; a step (S4) of driving the PM m...  
WO/2018/179822A1
The purpose of the invention is to improve an initial speed estimation method in sensorless vector control of an induction motor, thereby reducing time required for estimation and estimating initial speed with high-speed and a reduced to...  
WO/2018/182196A1
The present specification relates to a motor control module, a motor control device, a motor control system, and a motor control method, and the purpose of the present specification is to provide a motor control module, a motor control d...  
WO/2018/181506A1
According to the present invention, a compressor electric motor is caused to generate preheat. The path of an integral value over time of a unit voltage vector constituting a voltage vector serving as a unit which is a constituent of an ...  
WO/2018/173102A1
A magnetic pole position detection device of a motor control device comprising a computation unit for estimating the position of a magnetic pole. The computation unit: generates a three-phase connection voltage pulse command for operatin...  
WO/2018/162335A1
The present invention discloses a control system for an electric machine. In order to control the electric machine, predetermined frequency components are extracted from manipulated variables or measurement variables of the electric mach...  
WO/2018/163420A1
An electric vehicle propulsion control device is provided with: a power converter for applying an AC voltage to an induction machine; and a control unit for controlling the power converter on the basis of an external operation command. T...  
WO/2018/159100A1
This motor control method includes: a step in which the combined magnetic flux, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system a...  
WO/2018/159102A1
This motor control method includes: a step in which the combined magnetic flux and the stator current are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system as a reference; a step...  
WO/2018/159099A1
This motor control method includes: a step in which the armature magnetic flux, the combined magnetic flux, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a d...  
WO/2018/159101A1
This motor control method includes: a step in which the stator current and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system as a reference; a step in whic...  
WO/2018/159341A1
Disclosed is a robot control method for controlling, using a servomotor, motions of a robot arm. In this robot control method, in the cases where an outside air temperature is at a predetermined value or lower (step 15-3), the absolute v...  
WO/2018/159104A1
This motor control method includes: a step in which the combined magnetic flux, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate system a...  
WO/2018/159103A1
This motor control method includes: a step in which a combined magnetic flux vector, the stator current, and the stator voltage are acquired from a phasor representation using an αβ fixed coordinate system or a dq rotary coordinate sys...  
WO/2018/155949A1
The present invention relates to a motor driving device and a home appliance including the same. A motor driving device according to an embodiment of the present invention comprises: an inverter which includes a plurality of upper arm sw...  
WO/2018/156683A1
A system parameter identification system uses a combination of relay control and sinusoidal injection to derive accurate estimates of system parameters of a controlled system or process while satisfying the rate-limit associated with som...  
WO/2018/154621A1
Provided is an elevator capable of ensuring stable operation of an elevator car in the event that no magnetic pole position signal can be obtained from a magnetic pole position sensor. This elevator is provided with: a synchronous electr...  
WO/2018/152177A1
A system for detecting and eliminating harmonic effects in the DQ plane of the non- sinusoidal back EMF voltages is provided. The system is a field oriented controller (FOC) that includes a poly-phase electric machine, proportional-integ...  
WO/2018/147465A1
[Problem] To provide an electric power steering device which has a plurality of dead time (DT) compensation functions that perform DT compensation, wherein the DT compensation functions are switched between to perform compensation in acc...  
WO/2018/146793A1
Provided is a control device for an inverter that drives a motor including a magnet, the control device including: a rotation sensor that detects the rotation state of the motor; a current sensor that detects the current in the motor; an...  
WO/2018/145498A1
A reinforcement learning algorithm-based self-correction control method for a double-fed induction wind generator. According to the method, an RL controller is added to a PI controller of a vector control system based on PI control to dy...  
WO/2018/142445A1
In a drive control unit 7 which carries out vector control of a synchronous motor 3, when the speed of the synchronous motor 3 is at or above a prescribed threshold value, a value obtained by adding a correction angle, at which the D-axi...  
WO/2018/139331A1
The purpose of the present invention is to obtain a motor power conversion device capable of accurately calculating motor average efficiency and motor power loss amount in a driving operation in which a motor frequently repeats a powerin...  
WO/2018/132291A1
The subject matter of this specification can be embodied in, among other things, a motion control apparatus that includes a brushless DC motor to actuate a mechanical output based on a collection of phase power signals, a collection of f...  
WO/2018/130793A1
A control system for a multiphase and synchronous rotating electrical machine comprising a stator (31) and a rotor (30), said control system comprising: - an electronic card (16) for generating stator switching signals according to a cur...  
WO/2018/119539A1
The present invention relates to a constant slip control (CSC) method for variable-speed drives of asynchronous electric motors that deliver high control efficiency, which succeeds at delivering the load torque with lower stator current ...  
WO/2018/120323A1
A servo control strategy which simultaneously eliminates counter potential and load torque disturbances and a system, which estimate the total disturbances of an electrical portion on the basis of a nominal model of an armature winding a...  
WO/2018/123516A1
A motor control device according to an embodiment of the present disclosure includes: a first circuit 10 that determines the d-axis zero-order current and the q-axis zero-order current; a second circuit 20 that determines the d-axis 6th-...  

Matches 1 - 50 out of 10,017