| 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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| 05/08/2013 | CN103095208A Motor driving device |
| 05/08/2013 | CN102215021B Device and method for measuring electromotive force of fan motor |
| 05/08/2013 | CN102185555B Digitalized alternating-current voltage and speed regulation device |
| 05/01/2013 | EP2585803A1 Method for determining the torque of an electric motor |
| 05/01/2013 | CN202918239U Transmission control system for variable frequency motor in power grid well drilling |
| 05/01/2013 | CN103078586A Non-location technology for three-phase electro-magnetic double-salient pole machine starting and accelerating based on induction method |
| 05/01/2013 | CN103078585A Segmental slip control method of industrial and mining electric locomotive |
| 05/01/2013 | CN103078584A Voltage compensation method of constant voltage-frequency-ratio control of industrial and mining electric locomotive |
| 05/01/2013 | CN103078583A Separately excited motor control flow |
| 05/01/2013 | CN103078564A Soft-start intelligent electricity-saving controller |
| 04/30/2013 | US8432123 Method and electric circuit for operating an electric motor, especially a servomotor, for a component of an internal combustion engine |
| 04/24/2013 | EP2583108A2 System and method of speed detection in an ac induction machine |
| 04/24/2013 | CN202906827U Motor control-driven system based on ARM-cotexm3 framework |
| 04/24/2013 | CN103066916A Separately excited motor controller applied to battery driven vehicle |
| 04/24/2013 | CN101884165B Method for analyzing the operation of an electromechanical actuator for the powered manoeuvre of a screen, and actuator for implementing same |
| 04/24/2013 | CN101814894B Serial port communication mode programming system for a cooling fan and a method thereof |
| 04/24/2013 | CN101291132B Method and system for pulse position scheduling for electric drive |
| 04/24/2013 | CN101252337B Reduction of subharmonic oscillation at high frequency operation of a power inverter |
| 04/23/2013 | US8427089 Motor driving device |
| 04/18/2013 | WO2012022970A3 Measurement circuit |
| 04/18/2013 | WO2012018985A3 Method and apparatus for motor control |
| 04/17/2013 | EP2582035A2 Image forming apparatus, motor controlling apparatus, method for controlling motor |
| 04/17/2013 | CN103052890A Method and device for controlling a synchronous machine |
| 04/17/2013 | CN102082545B Motor speed controller and motor speed control method |
| 04/11/2013 | US20130088183 Single Phase Motor Energy Economizer for Regulating the Use of Electricity |
| 04/11/2013 | US20130088181 Control device and control method of alternating current motor |
| 04/04/2013 | WO2012028390A3 Control circuit for an electric motor having an electrical power supply control unit |
| 04/04/2013 | DE102011054129A1 Verfahren und Schaltungsanordnung zum Ansteuern von elektrischen Motoren Method and circuit for controlling electric motors |
| 04/03/2013 | CN202856684U Universal type three-phase machine controller |
| 04/03/2013 | CN103023428A Three-phase motor energy saving device capable of quickly accelerating and decelerating |
| 04/03/2013 | CN103023422A Electric power tool |
| 03/28/2013 | US20130076285 Method for compensating instantaneous power failure in medium voltage inverter and medium voltage inverter system by using the same |
| 03/28/2013 | DE102012215008A1 System und Verfahren zur Stromabschätzung für den Betrieb von elektrischen Motoren System and method for power estimate for the operation of electrical motors |
| 03/28/2013 | DE102011113877A1 Verfahren zur Positionierung eines schienengeführten Mobilteils, insbesondere Fahrzeugs, und Vorrichtung zur Durchführung des Verfahrens A method for positioning a rail-guided mobile part, in particular the vehicle, and apparatus for carrying out the method |
| 03/27/2013 | CN202841046U Fan motor |
| 03/27/2013 | CN202841045U Power-saving control system for beam-pumping unit |
| 03/27/2013 | CN103001572A Direct torque control system |
| 03/27/2013 | CN103001571A Motor load tracking synchronous adjusting power saving device |
| 03/27/2013 | CN103001570A Motor position overshooting control method and control device |
| 03/27/2013 | CN102055405B Brushless double feed motor control device and direct torque control method thereof |
| 03/27/2013 | CN101933222B Method for ascertaining a correction value for the angle of the rotor of an electrically commuted reversible synchronous motor |
| 03/27/2013 | CN101677227B Blower motor for HVAC systems |
| 03/27/2013 | CN101330272B Oil pump systems and methods for preventing torque overload in motors of oil pump systems |
| 03/27/2013 | CN101316094B Apparatus, systems, and methods for reducing voltage source inverter losses |
| 03/21/2013 | US20130073125 Drive device for railway vehicle |
| 03/21/2013 | CA2847498A1 Engine control for a synchronous motor |
| 03/20/2013 | EP2571159A2 Motor control apparatus |
| 03/20/2013 | CN101640514B Separately excited motor controller and control method thereof |
| 03/14/2013 | US20130063070 Medium voltage variable frequency driving system |
| 03/14/2013 | US20130063067 Power semiconductor module, electric-power conversion apparatus, and railway vehicle |
| 03/13/2013 | CN202798571U Explosion suppression type frequency conversion speed regulation controller for storage-battery motor vehicle |
| 03/13/2013 | CN102971960A Method and device for determining a momentary torque of an electronically switched electric machine and for regulating the average torque |
| 03/13/2013 | CN102969971A Motor control apparatus |
| 03/13/2013 | CN102969970A Motor efficiency tracking driving system and driving method |
| 03/07/2013 | US20130057195 Variable speed induction motor with single external power supply and control method thereof |
| 03/07/2013 | DE102011081996A1 Method for operating three-phase electric machine e.g. linear motor, involves defining electric current as function of relative position of runner to individual segments such that force affecting runner is set to predetermined value |
| 03/07/2013 | DE102007028914B4 Einrichtung zum Steuern und/oder Regeln der Geschwindigkeit eines elektrischen Motors Means for controlling and / or regulating the speed of an electric motor |
| 03/06/2013 | EP2566046A1 Motor control apparatus |
| 03/06/2013 | CN202772836U Device for judging the initial position of a pumped storage power station set rotor |
| 03/06/2013 | CN202772835U Intelligent electricity-saving controller of electric motor |
| 03/06/2013 | CN202772834U AC asynchronous motor direct torque control device |
| 03/05/2013 | US8390240 Absolute position sensor for field-oriented control of an induction motor |
| 03/05/2013 | CA2608780C Variable-frequency drive with regeneration capability |
| 02/27/2013 | EP2561609A1 Method for controlling position and/or speed |
| 02/27/2013 | EP2544358A9 Control system for doubly-fed induction machine |
| 02/27/2013 | CN102947711A System and method of speed detection in an AC induction machine |
| 02/27/2013 | CN101320956B Method for operating a three-phase rotating electric machine and device for implementing the method |
| 02/26/2013 | US8384338 System and method for determining stator winding resistance in an AC motor using motor drives |
| 02/21/2013 | WO2012038274A3 Method and device for the sensorless determination of a rotor position of an electric motor |
| 02/21/2013 | US20130043824 Control device for an asynchronous electric machine, electric propulsion system comprising said device, and method for controlling an asynchronous electric machine |
| 02/21/2013 | US20130043823 Control device for an asynchronous electric machine, electric propulsion system comprising said device, and method for controlling an asynchronous electric machine |
| 02/20/2013 | EP2559157A2 Control of a brushless motor |
| 02/20/2013 | CN102939712A Control of a brushless motor |
| 02/19/2013 | US8378618 Systems and methods for controlling operations of a motor |
| 02/13/2013 | CN202737804U Intelligent electricity-saving speed regulation control device of beam-pumping unit |
| 02/13/2013 | CN202737803U Alternating current servo driver |
| 02/12/2013 | US8373380 Device and method for controlling alternating-current motor |
| 02/12/2013 | US8373379 Methods and devices for estimation of induction motor inductance parameters |
| 02/12/2013 | US8373378 Systems and method for motor speed control |
| 02/07/2013 | WO2013018209A1 Electric motor drive system |
| 02/07/2013 | US20130033215 Apparatus and method for permanent magnet electric machine condition monitoring |
| 02/07/2013 | DE102012107084A1 Motorsteuervorrichtung The motor control apparatus |
| 02/06/2013 | EP2553806A1 Rectifier based torsional mode damping system and method |
| 02/06/2013 | CN202721644U AC asynchronous motor direct torque control system based on DSP |
| 02/06/2013 | CN102918274A Method for detecting abnormality in refrigeration apparatus and apparatus therefor |
| 02/06/2013 | CN102916648A Inverter control device |
| 01/31/2013 | WO2013013792A2 Drive system and method for operating a drive system |
| 01/31/2013 | US20130026007 Electric motor driven pushers for automated clipping packaging apparatus |
| 01/31/2013 | DE102012106771A1 Controller für elektromotor, umfassend eine funktion zum simultanen schätzen von trägheit, reibung und federkonstante Controller for electric motor comprising a function to simultaneously estimate of inertia, friction and spring constant |
| 01/31/2013 | DE102011079995A1 Method for operating drive system of e.g. engine, involves varying modulation depth of network-side or machine-side converters by average modulation depth of intermediate circuit, to supply alternating current power |
| 01/30/2013 | EP2550733A2 Avoidance of torsional excitations in converter-controlled compressor runs |
| 01/30/2013 | EP2550732A2 Avoidance of torsional excitations in converter-controlled compressor runs |
| 01/30/2013 | EP2550731A2 Method and device for determining output torque of an electric drive |
| 01/30/2013 | CN102906992A Avoidance of torsional excitations in converter-controlled compressor runs |
| 01/30/2013 | CN102904521A Electric motor controller comprising function for simultaneously estimating inertia, friction, and spring |
| 01/30/2013 | CN102904498A Control device that detects whether or not irreversible demagnetization has occurred |
| 01/29/2013 | US8362630 Method for controlling self-piloted alternator-starter, comprising shortened pre-flux step |
| 01/24/2013 | WO2013010778A1 Method for controlling harmonics and resonances in an inverter |
| 01/24/2013 | US20130020979 Dynamic reconfiguration-switching of windings in an electric motor |
| 01/24/2013 | US20130020973 Motor driving circuit and motor driving system |