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Patent Searching and Data


Matches 1 - 50 out of 16,454

Document Document Title
WO/2020/259232A1
A magnetic bearing and a high-performance servo motor. The magnetic bearing comprises a housing, and is characterized by further comprising a fixed ring provided in the housing and a plurality of magnetic rollers provided circumferential...  
WO/2020/244954A1
The invention concerns a method for estimating the electromagnetic torque of a three-phase synchronous machine with permanent magnets, which involves: measuring the stator phase currents and voltages in a fixed three-phase reference fram...  
WO/2020/245597A1
A motor drive signal generator configured to combine at least a part of a first input waveform with at least a part of a second input waveform to create a compound waveform, wherein the first waveform is a sine wave and the second input ...  
WO/2020/237851A1
A drive control method and apparatus, and a household appliance and a computer-readable storage medium. The drive control method comprises: during a load operating process, detecting a power supply signal (S102); and controlling, accordi...  
WO/2020/235130A1
On the basis of a detected motor angular velocity ωM and a velocity command ω*, a velocity control unit 1 outputs a torque command T*. A vibration suppression control unit 2 subtracts the detected motor angular velocity ωM from an est...  
WO/2020/227462A1
Apparatus, systems, and methods of monitoring and controlling electric power consumption by one or more pump jacks at one or more oil and gas well sites.  
WO/2020/216392A1
The invention relates to a method (10) for ascertaining at least one first motor parameter (P) of an electric motor (12), which can be actuated by an input value (/) and comprises a rotatable rotor (16) and a stator (14), which electric ...  
WO/2020/216399A1
The invention relates to a method (10) for controlling an electric motor (12), wherein the electric motor (12), on the basis of control by means of an input variable (/), has a target variable (Ψ) influenced by at least one parameter (P...  
WO/2020/213285A1
[Problem] To provide a vehicle steering apparatus that makes it possible to easily attain a steering torque equivalent to a steering angle or the like independently of the state of a road surface and without being affected by changes in ...  
WO/2020/213178A1
Provided is an electric motor control device capable of reducing torque ripples up to a high frequency range without amplifying unnecessary noise and vibration. The electric motor control device estimates an interlinkage magnetic flux on...  
WO/2020/207756A1
A method for determining a speed of an electronically commutated electric motor (14), in particular an electric motor (14) for a fan (11), wherein current measurement values (18, 19) are detected at multiple points in time which describe...  
WO/2020/202707A1
This control device is provided with: an angular velocity detection unit for detecting the angular velocity of a motor; an oscillation component removal unit for removing, through a filtering process, an oscillation component in a predet...  
WO/2020/198629A1
Apparatus and methods for controlling electric motors are disclosed. In addition, such apparatus and methods for starting and controlling electric motors and controlling electric motors switching from a PWM control to six step method of ...  
WO/2020/196719A1
A rotating electrical machine control system (100) for controlling an alternating current rotating electrical machine (80) provided with M coil sets (8) is provided with: M inverters (50) which are provided with a plurality of switching ...  
WO/2020/186656A1
A method for estimating the position of a linear time-variant rotor of a low-speed permanent magnet synchronous motor, comprising: first, injecting a high-frequency sinusoidal signal from a voltage end of a stator, thereby causing stator...  
WO/2020/186404A1
A method, system and device for adjusting and controlling a mowing robot. The method comprises: obtaining state information of a mowing motor on a robot, and calculating an output power according to the state information; calculating a d...  
WO/2020/182340A1
A drive having an electric motor able to be fed by an inverter, wherein the electric motor is connected to the AC-voltage-side terminal of the inverter by way of feed lines, wherein current sensors for recording the current in one of the...  
WO/2020/180027A1
A home appliance is provided. The home appliance includes a motor configured to execute a predetermined function of the home appliance, and a processor configured to determine an upper limit of noise of the home appliance based on ambien...  
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...  
WO/2020/166337A1
This electric actuator device for a flying object comprises: an inner rotor motor that is mounted on the flying object and generates thrust for the flying object; a motor driver that supplies a drive signal to the inner rotor motor; a fl...  
WO/2020/162660A1
The present invention relates to a vibration damping system and a method for estimating the cutting force of a machine tool using same. According to the present invention, the vibration damping system comprises: a housing; a stator dispo...  
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...  
WO/2020/097506A3
Techniques for managing a distributed control system for a motor control switch are described. A request to implement a first controller for a motor control switch is received. Embodiments determine a plurality of functional modules for ...  
WO/2020/151006A1
A rotational speed control device for a motor, a motor, and a food processing apparatus. The rotational speed control device comprises: a rotational speed feedback circuit (10) and a rotational speed control loop (20). The rotational spe...  
WO/2020/135389A1
A motor compensation method and device, a driver, and a system. Said method comprises: controlling a motor to rotate by a preset angle value, the preset angle value being an angle value corresponding to multiple parts obtained by equally...  
WO/2020/139221A1
The present invention relates to a motor (1) comprising a connection table (2) wherein nine connection elements (6) are positioned so as to form a 3x3 matrix, which are composed of a mains connection group (3) which provides the connecti...  
WO/2020/134159A1
Disclosed are a control unit (40) and a determination method for determining the rotation direction of an electric motor (10) of an electric tool, and an electric tool comprising the control unit (40). The electric motor (10) is a bidire...  
WO/2020/124934A1
Disclosed is a servo motor load inertia measurement method, comprising: when a motor is shipped from a factory, measuring natural frequencies fn of a speed loop under different JL/JM values, and producing a two-dimensional table of natur...  
WO/2020/132420A1
Apparatus features a signal processor configured to receive signaling from a flux sensor containing information about a residual field from an electrical supply to a motor of a driven machine and a magnetic field from one or more rotatin...  
WO/2020/126133A1
Control commands (C) are specified for a control device (4) of a machine, said control commands defining a sequence of ideal position target values (x*) for a position-controlled shaft (1) of the machine. This sequence has successive sec...  
WO/2020/119208A1
Disclosed is a method for controlling the rotational speed fluctuation of a single rotor compressor, comprising the process of controlling the compressor according to the real-time angle speed and the torque. The process of controlling t...  
WO/2020/120618A1
The invention relates to a method (100) for processing a signal in order to extract a useful signal from a disturbed signal P1 if the disturbed signal P1 is formed as a sum of a sinusoidal component S1 and an additional component X1. The...  
WO/2020/122110A1
This vibration control device comprises: a soft magnetic rotor that is fixed to an output shaft of a rotation drive part or to a shaft rotating in conjunction with the rotation of the output shaft, and rotates according to the rotation o...  
WO/2020/114626A1
The invention relates to a method for operating a drive train and a drive train, wherein the drive train comprises an electric motor and a load driven by the electric motor or driven by a transmission driven by the electric motor, wherei...  
WO/2020/109005A1
The invention relates to a method for monitoring the operation of at least one drive component (4). The aim of the invention is to improve the speed and security of the monitoring. This aim is achieved, according to the invention, in tha...  
WO/2020/109321A1
The invention relates to a method for monitoring the operation of a frequency converter (1) which is designed to control an electric motor (2), wherein the method has the steps: generating phase voltages (u1, u2, u3) for corresponding ph...  
WO/2020/109185A1
The invention relates to a method for controlling a three phase synchronous-reluctance or synchronous rotating machine (4) with permanent magnets, comprising the following steps: - measuring a current (iA, iB, iC) flowing in each of the ...  
WO/2020/105204A1
This power conversion device has: a harmonic voltage generation unit for superimposing, according to a switching signal, dc-axis and qc-axis harmonic voltages on dc-axis and qc-axis voltage commands; and an inductance estimation unit for...  
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/2020/098538A1
A torque control method for a doubly salient electro-magnetic electric motor, wherein the method relates to the technical field of control over variable-reluctance type electric motors and can suppress torque pulsation and improve the to...  
WO/2019/117329A8
In this work, it is shown for the first time that the power and the impedance in a transformer circuit depend on the phase of the flux, hence the phase of the current. There is a phase change when the flux travels the magnetic core, and ...  
WO/2020/088983A1
The invention relates to a method (100) for operating a voltage transformer (1), which converts an input voltage UZK provided on the DC voltage gate (2) of the voltage transformer into a three-phase or multiphase alternating voltage U on...  
WO/2020/087753A1
A drive control method, apparatus and system for an electric motor. The drive control method comprises: acquiring an output voltage set value of an inverter; calculating a voltage difference value according to a voltage instruction outpu...  
WO/2020/079999A1
This motor drive device (200) comprises: a power conversion circuit (204) which drives an AC motor; and a controller (203) which controls the power conversion circuit. The controller has: a command current calculation unit (206) which ge...  
WO/2020/073422A1
A high-power switched reluctance motor, comprising a stator (10), a rotor (4), a housing, and a cooling unit. Stator winding (11) is wound on stator teeth (102); the rotor (12) is supported and rotated by a rotating shaft (13); the shell...  
WO/2020/067576A1
A control device (10) for a power conversion device (3) according to an embodiment includes a drive control unit (16) controlling a current that is caused to flow through a stator winding of a motor (2), a drive quantity adjustment unit ...  
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/2020/046280A1
Obstacle detection for a moving element activated by a motor is disclosed. The obstacle detection may comprise a controller to: move the element at a substantially constant speed; determine an actual torque value to move the element at t...  
WO/2020/041016A1
A device may receive a current measurement of a motor identifying a plurality of component currents associated with a plurality of phases. The device may determine a position estimate for the motor based on the plurality of component cur...  

Matches 1 - 50 out of 16,454