| Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487) |
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| 09/22/2011 | DE102010003094A1 Verfahren und Vorrichtung zur Ermittlung eines Abgabemoments eines elektrischen Antriebs A method and apparatus for determining an output torque of an electric drive |
| 09/21/2011 | CN102195557A Pump motor control method and device |
| 09/21/2011 | CN102195556A System and method for managing torque capability in electric motor system |
| 09/21/2011 | CN102195555A Servo system, servo motor driving device, safety unit and method for controlling servo system |
| 09/21/2011 | CN102195547A Indirect torque control method for cage-rotor brushless doubly-fed machine (BDFM) |
| 09/21/2011 | CN102191636A Servo motor driving and controlling device of manual turntable operation type |
| 09/15/2011 | WO2011111097A1 Power converter |
| 09/15/2011 | WO2010060671A3 Method and control device for controlling an electric motor |
| 09/15/2011 | US20110221375 Power converter |
| 09/14/2011 | CN201976063U 一种四象限级联型高压变频器功率单元测控装置 A four-quadrant cascaded high voltage inverter power units and control devices |
| 09/14/2011 | CN201976062U 智能化电磁标相调控式电动机的节电装置 Intelligent electromagnetic standard phase-control type motor energy-saving devices |
| 09/14/2011 | CN102185555A Digitalized alternating-current voltage and speed regulation device |
| 09/14/2011 | CN101699763B Rotary inertia identification method for permanent magnet synchronous motor AC servo system |
| 09/08/2011 | DE102010015846A1 Method for displaying noticeable low filling pressure of tire of lorry trailer connected with tractor, involves displaying warning signal indicating noticeable low filling pressure in display arranged at outer mirror of tractor |
| 09/07/2011 | CN201966869U 纯电动车驱动电机变压调速控制器 Pure electric vehicle drive motor variable speed controller |
| 09/07/2011 | CN201966868U 用于电动叉车的泵电机转速控制模式选择装置 Pump motor speed control mode selection means for electric forklift |
| 09/07/2011 | CN101496274B Drive and method |
| 09/06/2011 | US8013565 Motor control device, control method, and control program |
| 09/06/2011 | CA2561506C Self powered gate driver system |
| 09/01/2011 | WO2011105676A1 Apparatus and method for controlling the speed of a wound-rotor induction motor |
| 09/01/2011 | DE102010009662A1 Method for parameterization of control device for controlling electromotor of car, involves determining type of electromotor automatically while determining ripple of current required for propulsion of electromotor |
| 08/31/2011 | EP2362537A1 Method for regulating the reactive power generated or absorbed by a synchronous electric generator and synchronous electric generator |
| 08/31/2011 | EP1652289B1 Method for the controlled application of a stator-current target value and a torque target value for a polyphase machine that is supplied by an electronic power converter |
| 08/31/2011 | CN201956961U 基于功率单元级联型高压变频器的能量回馈装置 Based on high-voltage inverter power unit cascaded energy feedback device |
| 08/30/2011 | US8008886 Power converter |
| 08/25/2011 | WO2011070165A3 Device for controlling a permanent-magnet synchronous machine |
| 08/25/2011 | WO2010031651A3 An asynchronous power generator for a wind turbine |
| 08/25/2011 | US20110205662 Controlling an electric motor by dynamic switching |
| 08/25/2011 | US20110204839 Motor drive apparatus and electric power steering apparatus using the same |
| 08/24/2011 | EP2360832A1 Control method for frequency converter |
| 08/18/2011 | DE102010007867A1 Verfahren und Steuergerät zur Bestimmung einer Stärke eines Magnetisierungsstromes für einen Asynchronmotor Process and control device for determining a strength of a magnetizing current for an induction motor |
| 08/17/2011 | EP2357724A1 Motor control system for a hoist drive |
| 08/17/2011 | CN201937539U 电动机星角自动转换装置 Motor star angle automatic switching device |
| 08/17/2011 | CN201937537U 一种逆变焊机电机控制系统 An inverter welder motor control system |
| 08/11/2011 | WO2011095225A1 Method for controlling a machine or an electrical load supplied with electric power over a long line |
| 08/11/2011 | WO2010022245A3 System and method for monitoring power damping compliance of a power generation unit |
| 08/11/2011 | CA2789205A1 Method for controlling a machine or an electrical load supplied with electric power over a long line |
| 08/10/2011 | EP2355335A1 Energy converter |
| 08/10/2011 | EP1423904B1 Reversible motor |
| 08/10/2011 | CN201928229U 全数字速度电流双闭环交流电动机调压调速控制装置 Digital AC motor speed regulator current double closed loop speed control device |
| 08/10/2011 | CN201928228U 电机控制装置和软启动器 Motor control device and soft starters |
| 08/10/2011 | CN201928227U 一种电机直驱螺杆泵反转抑制装置 A motor direct drive screw reverse suppression device |
| 08/10/2011 | CN201928226U 一种电机反转抑制单元内置的螺杆泵电机直驱装置 A motor reversing suppression unit built-screw motor direct drive unit |
| 08/10/2011 | CN101527537B Method for adjusting pulse width by capturing three-phase current information and system for modulating pulse width |
| 08/10/2011 | CN101355341B Electric motor systems |
| 08/04/2011 | US20110187308 Control device and control method for alternating-current motor |
| 08/04/2011 | US20110187306 Method for Activating an Asynchronous Motor |
| 08/03/2011 | EP2351202A1 Machine type identification |
| 08/03/2011 | EP1751839B1 Low loss propulsion system |
| 07/28/2011 | US20110181217 Method and device for ascertaining the rotor temperature of a permanent-magnet synchronous machine |
| 07/27/2011 | EP2348631A1 Control of a rotating electric machine |
| 07/27/2011 | CN101847957B Voltage-reducing and electricity-saving controller of motor |
| 07/22/2011 | CA2727469A1 Controller for a rotating electrical machine |
| 07/21/2011 | WO2009080911A3 Method for calculating, using a computer, a three-phase regulator of a three-phase system having a three-phase model |
| 07/20/2011 | CN102130649A Voltage regulation and speed regulation control system of full-digital speed and current double closed-loop alternating current motor |
| 07/20/2011 | CN102130536A Compact electromechanical actuator |
| 07/14/2011 | WO2011082851A1 Method for controlling an electric motor |
| 07/12/2011 | US7977910 Method of starting a synchronous motor with a brushless DC exciter |
| 07/07/2011 | WO2011080792A1 Control device for an asynchronous electric machine, electric propulsion system- comprising said device, and method for controlling an asynchronous electric machine |
| 07/07/2011 | WO2011080791A1 Control device for an asynchronous electric machine, electric propulsion system- comprising said device, and method for controlling an asynchronous electric machine |
| 07/07/2011 | WO2011079601A1 Self-starting rare earth permanent magnet motor and control method thereof |
| 07/06/2011 | EP2340609A2 Voltage control and power factor correction in ac induction motors |
| 07/06/2011 | CN201893748U Electric operating mechanism of high-voltage three-position isolating switch |
| 07/06/2011 | CN101567661B Harmonic torque ripple reduction at low motor speeds |
| 06/30/2011 | DE102010052156A1 Motorsteuerungsvorrichtung mit einer Funktion zum Berechnen des Betrags der Rastmomentkompensation A motor control apparatus having a function of calculating the amount of detent torque compensation |
| 06/22/2011 | DE102010052712A1 Drive motor control apparatus for vehicle, motor control system, method for correcting rotation angle of motor, program for performing the same, totation detecting apparatus Drive motor control apparatus for vehicle, motor control system, method for correcting rotation angle of motor, program for performing the same, totation Detecting apparatus |
| 06/22/2011 | CN201878089U Motor high and low speed control device of electrically driven workover rig |
| 06/16/2011 | WO2011070165A2 Device for controlling a permanent-magnet synchronous machine |
| 06/16/2011 | US20110140646 Methods and systems for induction machine control |
| 06/16/2011 | CA2782558A1 Device for controlling a permanent-magnet synchronous machine |
| 06/15/2011 | CN101090252B Electric saving method for AC motor and corresponding AC motor electric saver |
| 06/14/2011 | US7960940 Motor control device |
| 06/09/2011 | WO2011067467A1 Motor control system for a hoist drive |
| 06/08/2011 | CN102088272A 10kV digital high-voltage stator variable voltage control device |
| 06/08/2011 | CN102088206A Intelligent measurement and control apparatus of high-pressure isolation switch operating mechanism and method thereof |
| 06/01/2011 | EP2327149A2 System and method for monitoring power damping compliance of a power generation unit |
| 06/01/2011 | CN102082545A Motor speed controller and motor speed control method |
| 06/01/2011 | CN101119050B Method for changing 50W AC servo motor to 30W AC servo motor |
| 05/31/2011 | US7952318 System and method for determining stator winding resistance in an AC motor |
| 05/25/2011 | CN201846301U Electricity saver of motor |
| 05/25/2011 | CN102075138A Charging and discharging control system and method of flywheel battery |
| 05/25/2011 | CN102075137A High-bandwidth servo drive circuit with integral type current amplitude limiter |
| 05/24/2011 | US7948204 Sensorless speed detection of a PM brushless motor with phase terminals shorted |
| 05/24/2011 | US7948194 Waveform current monitor using RDSon of low-side bridge FET |
| 05/19/2011 | DE102009053620A1 Control electronics-integrated external rotor motor for connection with e.g. mini terminal to drive ventilators, has control electronics controlling motor, during detected interruption, and allowing user configuration of program |
| 05/18/2011 | CN201839254U Electric control device of PLC (Programmable Logic Controller) lifting motor |
| 05/18/2011 | CN201839253U Motor power remote control system for kiln |
| 05/17/2011 | US7944162 Motor control device |
| 05/12/2011 | DE102009046583A1 Verfahren zum Plausibilisieren des Drehmomentes einer elektrischen Maschine und Maschinenregler zur Regelung einer elektrischen Maschine und zur Durchführung des Verfahrens A method for checking the plausibility of the torque of an electric machine and machine controller for controlling an electric machine and for executing the method |
| 05/11/2011 | EP2320559A2 Parameter estimation system and method for an induction motor |
| 05/11/2011 | EP2320558A2 Electrical circuit for generating electrical energy |
| 05/11/2011 | EP2320548A2 DC bus boost method and system for regenerative brake |
| 05/11/2011 | EP2318818A1 Method and device for determining the rotor temperature of a permanently excited synchronous machine |
| 05/11/2011 | CN201830198U AC (alternating current) servo motor speed control system based on DSP (digital signal processor) |
| 05/11/2011 | CN201830197U 节电器 Saver |
| 05/11/2011 | CN201830165U Power inverter |
| 05/11/2011 | CN102055405A Brushless double feed motor control device and direct torque control method thereof |
| 05/11/2011 | CN102055404A Non-depressurizing method and system for adjusting motor reverse electromotive force |
| 05/11/2011 | CN102055403A Method and system for initiating operation of an electric motor |
| 05/11/2011 | CN101227166B Induction motor controller |