Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 16,585

Document Document Title
WO/2020/100551A1
According to the present invention, every control cycle, a first constant generation part (53) uses a modulation factor (M) to generate a first constant (K1) that defines switching timing, and, every control cycle, a second constant gene...  
WO/2020/100234A1
This motor control device (100) is provided with: a rotation state calculation unit (10) which calculates a rotor position (θe) and a rotor speed (ωe_ave) using a position pulse signal corresponding to the output of a position sensor (...  
WO/2020/100497A1
Provided is a motor control device for performing control by separating motor current into an orthogonal d-axis current and q-axis current on the basis of a torque command constituted by a target value for motor torque, the device compri...  
WO/2020/098746A1
A hardware acceleration method for a current loop in a control algorithm for a permanent magnet synchronous motor, for use in achieving a current loop in a control algorithm for a permanent magnet synchronous motor by means of an MCU and...  
WO/2020/097770A1
Disclosed are a method for recognizing a mechanical parameter of a servo system, a servo control system, and a storage device. The method comprises: causing an angular acceleration speed of a servo motor to change a number of times; coll...  
WO/2020/097769A1
A method for acquiring friction characteristics of a servo system, a control method and system of a servo system, and a storage device. The method for acquiring friction characteristics of a servo system comprises: setting a servo system...  
WO/2020/100478A1
[Problem] To provide a motor control device and a motor control method with which it is possible to eliminate, as much as possible, the effect of a vibration component of a feedback current on d-axis and q-axis voltage command values Vd,...  
WO/2020/100549A1
According to the present invention, every computation cycle, a first triangular wave generation part (51) generates a triangular wave on the basis of an updated phase angle that is the newest value for a phase angle that is the result of...  
WO/2020/095479A1
The present invention limits a d-axis current to an arbitrary value while avoiding duty saturation of a voltage applied to a motor. A motor control device comprising: voltage command value calculation units (45, 46) which, on the basis o...  
WO/2020/094176A1
The invention relates to field-oriented current regulation for a permanent magnet synchronous machine (30) in which setpoint values for the components Id and Iq of the current in the Park coordinate system are limited according to an ope...  
WO/2020/083985A1
The invention relates to a method or a device for load-free determining of load-dependent positioning parameters of a synchronous machine without a position sensor, which is controlled via pulsed terminal voltages from which, and in comb...  
WO/2020/079899A1
The present invention mitigates a decrease in motor output torque which occurs when a power supply current supplied from a power supply to a motor is limited to be less than or equal to a predetermined upper limit value. The motor contro...  
WO/2020/077422A1
The present invention relates to a speed control system for variable-speed hermetic compressors that uses a PMSM motor, including a strategy for optimizing, or minimizing, electric current. Having determined the minimum current required ...  
WO/2020/075620A1
One mode of this motor control device comprises: an inverter that drives a motor; a control operating unit that controls the inverter according to a current command value; and a torque ripple compensation unit that adds a compensation va...  
WO/2020/076083A1
The present invention relates to a power plant early warning device and method which employ a multiple prediction model, and includes: a plurality of prediction models which receive information about the operation states of equipment in ...  
WO/2020/067578A1
A control device (10) for a power conversion device (3) according to an embodiment includes a drive control unit (16) outputting a control signal based on a drive quantity command value, a drive quantity adjustment unit (14) calculating ...  
WO/2020/064098A1
In order to achieve the energy efficiency class IE4 defined in the IEC standard 60034, it is necessary to operate permanently excited synchronous machines directly from the power supply system. Since this is not readily possible, soft st...  
WO/2020/066994A1
This motor control device 10 comprises: a current acquisition unit 12 that acquires a limited current ILdc that can flow from a battery 200 to a brushless motor 100; a voltage acquisition unit 11 that acquires a power supply voltage Vdc ...  
WO/2020/066995A1
This motor control device 10 is provided with: a command current deriving unit 33 for deriving a command current vector on the basis of a command torque TR* for a brushless motor 100; a phase difference deriving unit 18 for deriving a ph...  
WO/2020/064420A1
The invention relates to a method for reducing interference noise and/or vibrations during the operation of an electric machine (1) which has a primary part with a three-phase coil winding and a second part with permanent magnets. In the...  
WO/2020/064536A1
A method for determining a correction value for a control device (3) for an electrical machine (5), wherein the correction value describes an angular difference between a position of a d-axis of the electrical machine (5), which position...  
WO/2020/064097A1
In order to achieve the energy efficiency class IE4 defined in IEC standard 60034, it is necessary to operate permanently excited synchronous machines directly on the mains. Since this is not readily possible, soft starters come into con...  
WO/2020/063331A1
A control device and a control method for an induction motor. The control device comprises: a magnetizing current adjusting unit used for calculating a magnetizing voltage instruction; a torque current adjusting unit used for calculating...  
WO/2020/065918A1
In this invention, a PWM control unit (4) generates a signal for controlling a switching element of individual legs on the basis of the size relationship for a triangular wave carrier of a common period at an initial phase that differs f...  
WO/2020/063330A1
A control apparatus (10) and a control method for an alternating-current electric motor. Provided is the control apparatus (10) for an alternating-current electric motor, wherein same is used for drive control of an alternating-current e...  
WO/2020/067482A1
Provided is a technique for appropriately embedding, in a rotating electric machine control device for controlling a rotating electric machine, a damping function for reducing a transfer torque vibration transferred to the rotating elect...  
WO/2020/061128A1
A sensorless position estimation and control system and method for a permanent magnet electric motor of a powertrain system of a vehicle involve determining a reference torque to be achieved by the electric motor based on a set of vehicl...  
WO/2020/058131A1
The invention relates to a method for determining the magnetic flux φ of an electrical machine based on measurements (MES) of currents and voltages in the phases of the electrical machine, on a dynamic model (MOD) of the magnetic flux, ...  
WO/2020/057427A1
A motor control method and device, and a frequency conversion controller. Said method comprises: performing limiting control on an instruction torque, so as to obtain a target torque (S11); calculating a target current according to the t...  
WO/2020/054407A1
[Problem] To provide a motor control device and a motor control method in which a voltage phase control unit (square wave control unit) covers a conventional weak magnetic flux control region, and in which loss is suppressed. [Solution] ...  
WO/2020/048579A1
The present disclosure relates to a method performed by a control system of a power electronics converter. The method comprises providing a grid-side current controller for controlling power output from the converter to a power grid. A f...  
WO/2020/050250A1
A motor control device 10 equipped with: an acquisition unit 162 for obtaining a q-axis current component of a current vector generated when electricity is supplied to a brushless motor 100 so as to generate a voltage vector along an est...  
WO/2020/044791A1
This electric power converting system is provided with a power source device 1 for supplying electric power to a motor electric power converting device 2 which supplies electric power to a motor 3, wherein: the motor electric power conve...  
WO/2020/044323A1
The invention relates to a wind energy installation comprising a drive train (13) having a wind rotor (12), a generator (2) which is driven by the mechanical drive train (13) and interacts with a converter (3) for generating electric pow...  
WO/2020/045568A1
A motor control device 10 is provided with: a rotation control unit 163 for causing a rotor 105 of a brushless motor 100 to rotate by supplying power thereto; a rotation direction determining unit 164 for determining the direction of rot...  
WO/2020/038038A1
Disclosed are a motor variable frequency driving system and a multi-split central air conditioner. The motor variable frequency driving system comprises: a three-phase alternating-current input (102), a rectification module (104), a thin...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  

Matches 1 - 50 out of 16,585