| Patents for H02P 21 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation (7,114) |
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| 07/04/2012 | CN102545744A Displacement estimating method and suspension control system for bearingless synchronous reluctance motor |
| 07/04/2012 | CN102545742A Position sensorless control device and control method for permanent magnet synchronous motor |
| 07/04/2012 | CN102545648A Multi-phase current supplying circuit, driving apparatus, compressor, and air conditioner |
| 07/04/2012 | CN102082541B Overcurrent inhibition method for doubly-fed wind driven generator rotor in grid fault |
| 07/04/2012 | CN102013870B Inverse system decoupling controller of five-degree-of-freedom bearingless synchronous reluctance motor |
| 07/04/2012 | CN101986552B Rotor current control method of double-fed wind driven generator under power grid faults |
| 07/04/2012 | CN101977011B Control method of double-fed induction generator under power grid voltage three-phase symmetrical drop fault |
| 07/04/2012 | CN101938246B Fuzzy fusion identification method of rotating speed of sensorless motor |
| 07/04/2012 | CN101924514B Rotary transformer initial position signal autocorrection method |
| 07/04/2012 | CN101536302B Open-loop and/or closed-loop control of a 3-phase power converter for the operation of an asynchronous machine |
| 07/04/2012 | CN101385234B Electric motor control |
| 07/04/2012 | CN101320955B Electric motor control device |
| 07/04/2012 | CN101043195B Stepping motor control apparatus |
| 06/28/2012 | WO2012025312A3 Method and device for controlling a synchronous machine |
| 06/28/2012 | WO2011113810A3 Methods and devices for the determination of slip frequency and for the automatic control of an asynchronous motor |
| 06/28/2012 | DE102011079841A1 System zum Regeln eines Motors von einem Hybridfahrzeug A system for controlling a motor of a hybrid vehicle |
| 06/28/2012 | DE102010055744A1 Three-phase motor controlling method for driving cooling fan of e.g. forklift lorry, involves determining flux vector, rotor position, and speed of motor on basis of model calculation of operating performance of motor |
| 06/27/2012 | EP2469702A1 Method and arrangement for slip setpoint tracing in a field-oriented control loop of an asynchronous motor |
| 06/27/2012 | EP2282401B1 Motor control device and electric steering system |
| 06/27/2012 | CN102522948A Hybrid intelligent adjusting method of torque hysteresis width in DTC (Direct Torque Control) system |
| 06/27/2012 | CN102522945A Polyphase motor fault-tolerant control method and system based on multi-neural-network inverse model |
| 06/27/2012 | CN102522944A Servo-motor acceleration-deceleration control method for servo pressure machine |
| 06/27/2012 | CN102522943A Control method of initial position of rotor of vertical shaft permanent magnet wind-driven generator |
| 06/27/2012 | CN102522942A Excitation control method of doubly-fed wind-driven generator |
| 06/27/2012 | CN102522941A Method for suppressing low-frequency vibration of compressor and system for suppressing low-frequency vibration of compressor |
| 06/27/2012 | CN102055401B System and method for controlling indirect torque of single regulating loop of three-phase induction motor |
| 06/27/2012 | CN102006001B Oscillation starting control method for thermo-acoustic engine |
| 06/27/2012 | CN101689828B Motor drive system and its control method |
| 06/27/2012 | CN101577523B Current control method, servomotor and injection molding machine |
| 06/27/2012 | CN101507101B Permanent magnet synchronization motor vector control device |
| 06/27/2012 | CN101291131B Control system for synchronous electric motor |
| 06/27/2012 | CN101257243B Fuel engine servo-loading unit and optimum efficiency operation control method |
| 06/26/2012 | CA2660601C Vector control device for alternating-current electric motor |
| 06/24/2012 | CA2762473A1 Method for controlling a converter |
| 06/21/2012 | WO2012081493A1 Control device for rotating electrical machine |
| 06/21/2012 | US20120153881 Vector control method for electric motors |
| 06/20/2012 | EP2131488B9 Electric vehicle controller |
| 06/20/2012 | CN202282759U 永磁同步电机矢量控制器 PMSM controller |
| 06/20/2012 | CN102510263A Method for identifying practical parameters of synchronous generator on basis of load rejection test and numerical difference |
| 06/20/2012 | CN102510262A Variable-frequency speed regulation controller |
| 06/20/2012 | CN102510261A Motor phase current reconstruction method based on symmetric pulse width modulation (PWM) carrier wave |
| 06/20/2012 | CN102510260A Induction machine vector control method taking account of iron loss |
| 06/20/2012 | CN101567659B Motor control device, motor drive system, and method of changing magnetization amount of permanent magnet motor |
| 06/20/2012 | CN101383581B Absolute position sensor for field-oriented control of an induction motor |
| 06/20/2012 | CN101262199B Motor controller and motor control system |
| 06/19/2012 | US8203293 Motor drive apparatus and motor drive method |
| 06/19/2012 | US8203292 Controller of multi-phase electric motor |
| 06/14/2012 | WO2012077153A1 Inductance measurement device and measurement method for synchronous electric motor |
| 06/14/2012 | WO2011124346A3 Method for controlling an optimal operating point in a synchronous machine and inverter-fed synchronous machine |
| 06/14/2012 | US20120146559 Estimation of actual torque in an electrical motor drive |
| 06/13/2012 | EP2464002A1 Estimation of actual torque in an electrical motor drive |
| 06/13/2012 | CN202276316U 电机控制中转子位置的观测装置 Observation unit motor control rotor position |
| 06/13/2012 | CN102497156A Neural-network self-correcting control method of permanent magnet synchronous motor speed loop |
| 06/13/2012 | CN102497155A Permanent magnet synchronization motor rotor magnetic pole position presumption method |
| 06/13/2012 | CN102497154A Method for avoiding shutdown of frequency converter under instantaneous power-down situation |
| 06/13/2012 | CN102497153A Constant-power-angle self-adaptive control method of permanent magnet synchronous motor |
| 06/13/2012 | CN102497152A Rotating compaction instrument control system and integrated control method thereof |
| 06/13/2012 | CN102497151A Intelligent reconstruction flexible motor driven controller |
| 06/13/2012 | CN102497150A Fixed-frequency integral controller of brushless direct-current motor and construction method thereof |
| 06/13/2012 | CN102497149A Direct decoupling control method of permanent magnet linear synchronous motor-driven suspension platform |
| 06/13/2012 | CN102497148A High-precision control device for mechanical flywheel |
| 06/13/2012 | CN102496957A Compound full-power wind power converter |
| 06/13/2012 | CN101741309B Directional control device and control method for magnetic field of permanent magnet synchronous motor |
| 06/13/2012 | CN101604955B Jiggling phase searching method for three-phase AC servo motor |
| 06/13/2012 | CN101557196B Current regulator and current control method and system for AC motors |
| 06/13/2012 | CN101102089B Motor control device and motor drive system |
| 06/12/2012 | US8198840 Method and device for operating a synchronous machine |
| 06/07/2012 | US20120139461 Power conversion device for a rotary electric machine |
| 06/07/2012 | US20120139460 Apparatus for carrying out improved control of rotary machine |
| 06/07/2012 | US20120139459 System for controlling motor of hybrid vehicle |
| 06/06/2012 | DE102010053098A1 Method for monitoring rotor position sensor, involves reading rotor position signal and reading voltage signal and current signal, where error signal for rotor position signal is determined from rotor position signal and voltage signal |
| 06/06/2012 | CN102487265A Method for adaptively compensating position error of resolver |
| 06/06/2012 | CN102487264A Magnetic flow controller used for sensitive motor |
| 06/06/2012 | CN102487263A Controlling device |
| 06/05/2012 | US8193747 Methods, systems and apparatus for controlling operation of two alternating current (AC) machines |
| 06/05/2012 | CA2654432C Control apparatus for ac rotary machine |
| 05/31/2012 | WO2012069229A2 Drive method and apparatus for an electric machine |
| 05/31/2012 | DE19532477B4 Verfahren zum Anlassen einer Asynchronmaschine Method for starting an asynchronous |
| 05/30/2012 | CN202261154U Electrically excited synchronous motor initial magnetic pole positioning control device |
| 05/30/2012 | CN202260954U Three-phase polymorphic servo motor |
| 05/30/2012 | CN102484438A Anomaly detection device for a permanent magnet synchronous electric motor |
| 05/30/2012 | CN102481859A Electric Motor Drive System For An Electric Vehicle |
| 05/30/2012 | CN101795109B Asynchronous motor vector controller |
| 05/30/2012 | CN101755383B Motor control device, drive device, and hybrid drive device |
| 05/30/2012 | CN101682279B Ac motor drive controller |
| 05/24/2012 | WO2012066800A1 Electric current detection device and motor control device |
| 05/24/2012 | US20120130153 Portable controller with integral power source for mechanical circulation support systems |
| 05/24/2012 | DE112010000463T5 Steuerungsvorrichtung für eine Elektromotorantriebsvorrichtung Control device for an electric motor drive means |
| 05/24/2012 | DE102010061897A1 Ansteuerverfahren und -Vorrichtung für eine elektrische Maschine A driving method and apparatus for an electrical machine |
| 05/23/2012 | EP2456064A1 Control method for doubly-fed electric generator |
| 05/23/2012 | CN202231664U Non-inductance vector frequency converter |
| 05/23/2012 | CN102474215A 电动机驱动装置的控制装置 The control means of the motor driving device |
| 05/23/2012 | CN102468800A Control system of servomotor driver |
| 05/23/2012 | CN102082543B Method for controlling double-feed wind driven generator under imbalanced power grid voltage |
| 05/23/2012 | CN101977006B Method for controlling double-fed wind driven generator in power grid faults |
| 05/23/2012 | CN101958683B Method for acquiring redundant stator voltage signal of double-fed wind turbine |
| 05/23/2012 | CN101917157B Method for reconstructing phase current of electromotor |
| 05/23/2012 | CN101814892B Support vector machine inverse system composite controller based on bearingless synchronous reluctance motor |
| 05/23/2012 | CN101783563B Multiple multiphase fault-tolerant motors for electric automobile and decoupling control method thereof |
| 05/23/2012 | CN101682283B Sensor-less control device for permanent-magnet synchronous electric motor |