| 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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| 05/05/2011 | US20110101905 Generating electromagnetic forces in large air gaps |
| 05/05/2011 | US20110101901 Power control system for vehicle disk motor |
| 04/28/2011 | WO2011047971A2 Electronically commutated electrical motor having a calibrated motor torque constant |
| 04/27/2011 | CN201813346U Intelligent electricity saving device |
| 04/27/2011 | CN102035458A Current control method used for high-voltage transducer |
| 04/27/2011 | CN102035457A Motor drive device |
| 04/27/2011 | CN101488727B Undisturbed switching variable frequency speed control system for medium voltage electric motor and speed control method |
| 04/26/2011 | US7932692 Control system for rotary electric machine with salient structure |
| 04/21/2011 | WO2011005678A3 Motor control systems, foldable partitions employing motor control systems, methods of monitoring the operation of electric motors and foldable partitions |
| 04/21/2011 | DE10355287B4 Ansteuereinrichtung für elektrische Maschinen The drive device for electric machines |
| 04/14/2011 | WO2011043118A1 Motor system |
| 04/14/2011 | WO2011042186A2 Variable damping circuit for a synchronous servomotor |
| 04/14/2011 | WO2009138285A3 Method for examining the state of an electric motor |
| 04/14/2011 | US20110084643 Method and apparatus for failsafe monitoring an electromotive drive |
| 04/14/2011 | US20110083467 Air conditioner, air conditioner manufacturing method, and compressor |
| 04/13/2011 | EP2309641A2 Method and device for error-free monitoring of an electric motor drive |
| 04/13/2011 | CN201797413U Time-staggered independent driving device for stator winding of permanent magnet synchronous motor |
| 04/13/2011 | CN102012674A Building method for electric drive system hardware-in-the-loop simulation device |
| 04/12/2011 | US7923961 Vehicle equipped with motor and inverter |
| 04/12/2011 | US7923959 Rotor driving control device and image forming apparatus |
| 04/07/2011 | WO2011040845A1 Electric motor and method for controlling the same |
| 04/07/2011 | CA2775834A1 Electric motor and method for controlling the same |
| 04/06/2011 | EP2063339B1 Control method of electromotor |
| 04/06/2011 | CN102006002A Drive circuit of alternating current fan |
| 04/06/2011 | CN101383586B Motor electricity saving device and motor electricity saving method |
| 04/05/2011 | US7919941 Semiconductor power converter |
| 03/31/2011 | US20110074329 Electric motor control apparatus |
| 03/30/2011 | CN101999206A Traction control method and apparatus for a vehicle with independent drives |
| 03/30/2011 | CN101997478A Method and circuit for processing resolver fault |
| 03/30/2011 | CN101997477A PWM pulse regulating circuit for motor of range hood |
| 03/30/2011 | CN101997476A Motor driving device and method |
| 03/22/2011 | US7911176 Systems and methods involving permanent magnet electric machine rotor position determination |
| 03/17/2011 | US20110062902 Method and apparatus for low speed permanent magnet motor operation |
| 03/16/2011 | CN201766443U Solar energy stretching motor system |
| 03/15/2011 | US7906932 Signal processing device, velocity detecting device and servo mechanism |
| 03/15/2011 | US7906924 Wide dynamic range motor control system and method |
| 03/10/2011 | WO2011005678A8 Motor control systems, foldable partitions employing motor control systems, methods of monitoring the operation of electric motors and foldable partitions |
| 03/10/2011 | US20110057601 Current injection circuit for delaying the full operation of a power factor control circuit for ac induction motors |
| 03/09/2011 | EP2293426A1 Softstarter device and method for an electric motor |
| 03/09/2011 | CN101208857B Operating three-phase equipment by single-phase power |
| 03/08/2011 | CA2548861C Linear motor door actuator |
| 03/03/2011 | US20110050157 Induction motor |
| 03/03/2011 | US20110050156 Control system for a compressor actuated by an electric motor, an assembly composed of an electric induction motor, an electronic control and an arrangement for motor-compressors, and a method of controlling an electric motor |
| 03/03/2011 | US20110050142 System and method for motor speed estimation of an electric motor |
| 03/03/2011 | DE102010036500A1 Steuervorrichtung für einen Elektromotor mit einer Funktion zum zeitgleichen Bestimmen von Trägheit und Reibung A control apparatus for an electric motor having a function for simultaneously determining inertia and friction |
| 03/03/2011 | CA2771179A1 System and method for motor speed estimation of an electric motor |
| 03/02/2011 | EP2290808A1 Method for determining a scaling factor of an electrical drive system, corresponding device and corresponding electrical drive system |
| 03/02/2011 | CN101982659A Method of controlling a pump and motor |
| 03/02/2011 | CN101535913B Control method of electromotor |
| 02/22/2011 | US7893650 Method and system for multiphase current sensing |
| 02/22/2011 | US7893638 Apparatus and method for driving rotary machine |
| 02/17/2011 | WO2011018302A1 Method for monitoring a drive state of an electric motor |
| 02/17/2011 | DE102009037557A1 Method for controlling electric motor arranged in drive train of motor vehicle, involves presetting motor torque depending on captured operating variable of vehicle, and representing measure of counter torque that rests against drive train |
| 02/10/2011 | WO2011016235A1 Synchronous motor and system for driving synchronous motor |
| 02/09/2011 | EP2281336A2 Method for examining the state of an electric motor |
| 02/09/2011 | CN201742368U Servo controller specially used for textile machinery |
| 02/09/2011 | CN201742367U Speed regulating circuit of cleaning machine |
| 02/03/2011 | US20110029197 Electrically-powered actuator driving control apparatus and driving control method and vehicle having electrically-powered actuator driving control apparatus |
| 01/26/2011 | CN201726357U Intelligent power-saving control system |
| 01/26/2011 | CN201726356U Electromagnetic speed governor |
| 01/26/2011 | CN201726355U Electricity saver for electric machine |
| 01/19/2011 | CN201717816U Electromotor pressure reduction electricity-saving controller |
| 01/19/2011 | CN101953047A Driving controller of AC motor |
| 01/19/2011 | CN101951072A Time-staggering independent-drive device and method for stator windings of permanent magnet synchronous motor |
| 01/13/2011 | WO2011005678A2 Motor control systems, foldable partitions employing motor control systems, methods of monitoring the operation of electric motors and foldable partitions |
| 01/13/2011 | DE102009031943A1 Pump motor for pumps with different selectable speed, comprises plug, which has electronic component that transfers electric or electronic signal of motor to its control, particularly for determination of number of revolutions |
| 01/12/2011 | CN101946399A Electric motor |
| 01/12/2011 | CN101944878A Induction motor parameter identification |
| 01/12/2011 | CN101944877A Estimation of parameters of an induction machine |
| 01/12/2011 | CN101201259B Motor control apparatus |
| 01/06/2011 | US20110001452 Method and electric circuit for operating an electric motor, especially a servomotor, for a component of an internal combustion engine |
| 01/06/2011 | US20110001444 Method for ascertaining a correction value for the angle of the rotor of an electrically commuted reversible synchronous motor |
| 01/05/2011 | EP2270522A1 Induction motor parameter identification |
| 01/05/2011 | EP2269300A1 Traction control method and apparatus for a vehicle with independent drives |
| 01/05/2011 | EP2268500A2 Voltage estimation feedback of overmodulated signal |
| 01/05/2011 | CN201699648U Driving device of motor with feedforward and injection damping control |
| 01/05/2011 | CN201699647U Electromagnetism speed regulator |
| 01/05/2011 | CN201699646U Motor control device |
| 01/05/2011 | CN101938247A Special servo controller for textile machinery |
| 12/30/2010 | US20100327798 Applying a control unit to an asynchronous machine which is operated without a rotary encoder |
| 12/29/2010 | CN201684804U Servo control system for plate bending machine |
| 12/29/2010 | CN101933222A Method for ascertaining a correction value for the angle of the rotor of an electrically commuted reversible synchronous motor |
| 12/29/2010 | CN101931364A Motor driving system and method |
| 12/28/2010 | US7859205 Motor drive apparatus and motor drive method |
| 12/23/2010 | US20100320956 Energy Saving System and Method for Devices with Rotating or Reciprocating Masses |
| 12/22/2010 | CN101924515A Hovering speed regulation technology for oil pumping unit |
| 12/19/2010 | CA2669692A1 Strain gauge pump control switch |
| 12/16/2010 | WO2010144308A2 System and method of dynamic regulation of real power to a load |
| 12/16/2010 | WO2010143452A1 Power converter |
| 12/16/2010 | US20100315033 System and method of dynamic regulation of real power to a load |
| 12/16/2010 | DE102009024737A1 Data detection station for detection of engine relevant variables of speed-dependent electric motor, particularly servo motor, has detection unit for measuring engine relevant variables to control one electric motor |
| 12/16/2010 | CA2774625A1 System and method of dynamic regulation of real power to a load |
| 12/15/2010 | CN201674455U Dedicated power-saving device for cooling and refrigerating water pump motor of air-conditioner |
| 12/14/2010 | US7852038 Single switch controlled switched reluctance machine |
| 12/08/2010 | CN201667581U Direct-driven climb assisting host |
| 12/08/2010 | CN101907087A Speed reduction/change starter |
| 12/08/2010 | CN101562422B Automatic setting method for speed ring control parameters of alternating current servo driver |
| 12/07/2010 | US7847510 Controlling switching of thyristors to reduce power loss in variable speed motor |
| 12/01/2010 | EP2256892A1 Driving controller of ac motor |
| 12/01/2010 | EP2255066A2 Cable loss compensation in an electrical submersible pump system |