| 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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| 08/15/2012 | CN102638214A Working method of high-power electric vehicle controller based on sliding mode variable structure model algorithm |
| 08/15/2012 | CN102035456B Direct torque control system of permanent magnet synchronous motor based on terminal sliding mode |
| 08/15/2012 | CN101645685B Alternating current synchronous motor controller based on FPGA and control method thereof |
| 08/15/2012 | CN101540581B Apparatus for carrying out improved control of rotary machine |
| 08/15/2012 | CN101047358B Sinusoidal DC conversion control method and equipment for one-drives-two air conditioner |
| 08/14/2012 | US8242728 Method for modernizing a technical system and an appropriate drive element |
| 08/14/2012 | US8242721 Position-sensorless control system and method of operation for a synchronous motor |
| 08/14/2012 | US8242720 Sensorless optimum torque control for high efficiency ironless permanent magnet machine |
| 08/09/2012 | US20120200241 Control Device for Vehicle Electric Drive Motor and Vehicle With the Same |
| 08/09/2012 | DE19913941B4 Steuergerät zur variablen Steuerung der Drehzahl eines Asynchronmotors Control unit for variably controlling the speed of an induction motor |
| 08/08/2012 | EP2485389A2 System and method for controlling torque of induction motor in electric vehicle |
| 08/08/2012 | EP2485388A1 Reduction of noise and vibrations of an electromechanical transducer by using a modified stator coil drive signal comprising harmonic components |
| 08/08/2012 | CN202374208U Frequency conversion speed-adjusting device |
| 08/08/2012 | CN102629848A Speed-sensor-less construction method for bearing-less asynchronous motor |
| 08/08/2012 | CN102629847A Asynchronous motor pure electronic speed feedback method |
| 08/08/2012 | CN101821942B Motor control device and magnetic pole position estimation method |
| 08/07/2012 | CA2643433C Control apparatus for ac rotary machine and control method for ac rotary machine |
| 08/02/2012 | US20120194108 Motor system |
| 08/01/2012 | EP1829200B1 Method and apparatus for determining motor rotation status |
| 08/01/2012 | EP1487098B1 Motor temperature estimator and motor controller |
| 08/01/2012 | CN102624322A Motor control system and method without position sensor |
| 08/01/2012 | CN102624321A Electromagnetic torque jitter elimination method for doubly-fed induction wind driven generator |
| 08/01/2012 | CN102624320A Electromotor dynamic/stable stage parameter identification method based on stator resistance observer |
| 08/01/2012 | CN102624319A Methods, systems and apparatus for controlling third harmonic voltage |
| 08/01/2012 | CN102624318A Online space vector state display device for monopole asynchronous motor |
| 08/01/2012 | CN102624317A Two-level dual-mode space vector over-modulation method and system |
| 08/01/2012 | CN102624316A Multiphase motor control system based on driving of multiphase matrix converter |
| 08/01/2012 | CN102624315A High-precision permanent magnetic servo motor three-closed-loop control system and method |
| 08/01/2012 | CN102624314A Variable-flux motor drive system |
| 08/01/2012 | CN102624297A Fault tolerance permanent magnet power generation system and control method thereof |
| 08/01/2012 | CN102624276A Novel dead-zone effect compensation method of AC servo inverter |
| 07/26/2012 | WO2012098875A1 Power conversion apparatus |
| 07/26/2012 | WO2012098873A1 Power conversion device |
| 07/26/2012 | WO2011112363A3 Method and system for controlling a permanent magnet synchronous motor |
| 07/26/2012 | US20120187877 Motor and drive system provided therewith |
| 07/26/2012 | US20120187876 Methods, systems and apparatus for controlling third harmonic voltage when operating a multi-phase machine in an overmodulation region |
| 07/25/2012 | CN102612801A Apparatus and method for generating electromagnetic torque in an electric machine |
| 07/25/2012 | CN102612453A Power supply status diagnostic method and device |
| 07/25/2012 | CN102611383A On-line identifying method and device for stator resistor |
| 07/25/2012 | CN102611382A Online rotor resistance identification method of asynchronous motor |
| 07/25/2012 | CN102611381A Direct torque control system of permanent-magnet synchronous motor |
| 07/25/2012 | CN102611380A Online identification method for parameters of double-fed motor |
| 07/25/2012 | CN102611379A Method and system for operating an electromechanical generator |
| 07/25/2012 | CN102611378A System and method for compensating current harmonics of permanent-magnet synchronous motor |
| 07/25/2012 | CN101821941B Ac motor control device and AC motor control method |
| 07/25/2012 | CN101295955B Motor control device |
| 07/24/2012 | US8228012 Controller of multi-phase electric motor |
| 07/18/2012 | EP2477325A2 Method and system for operating an electromechanical generator |
| 07/18/2012 | EP2477324A1 Controller device for controlling a power converter device |
| 07/18/2012 | EP2476590A1 Power supply status diagnostic method and device |
| 07/18/2012 | CN102598501A Overcurrent limit in the control of three-phase machines fed by inverter |
| 07/18/2012 | CN102594254A System and control method for reducing noise of permanent magnet synchronous motor |
| 07/18/2012 | CN102594253A Parameter off-line identifying method and device of three-phase asynchronous motor |
| 07/18/2012 | CN102594252A Multi-closed loop method introducing torque correction into high-precision tracking system |
| 07/18/2012 | CN102594251A Sliding mode control method for servo motor with measurement delay output |
| 07/18/2012 | CN102594250A Maximum torque per ampere vector control system and control method for position sensor-free internal permanent magnet synchronous motor |
| 07/18/2012 | CN102594249A Velocity sensorless vector control method for single bus current detection of three-phase alternating-current motor |
| 07/18/2012 | CN102594248A Rotating machine controller |
| 07/18/2012 | CN102594247A Control system for three-freedom-degree bearingless alternative pole permanent magnet motor in axially active suspension |
| 07/18/2012 | CN102594246A Zero-frequency positioning control method of alternating-current synchronous motor stator and rotor |
| 07/18/2012 | CN102594245A Sliding mode control method of under-actuated double-coupling motor |
| 07/18/2012 | CN102594244A Joint control method of primary frequency modulation for doubly-fed wind power generation set |
| 07/18/2012 | CN102594243A Indirect matrix converter-based multi-unit drive system and fault-tolerant control method thereof |
| 07/18/2012 | CN102594242A Vector control method for multi-unit drive system based on indirect matrix converter |
| 07/18/2012 | CN101567652B Permanent magnet motor start-up |
| 07/12/2012 | US20120176068 Rotating machine controller |
| 07/11/2012 | EP1972053B1 Electric motor control |
| 07/11/2012 | CN202334430U 低速大扭矩伺服控制器 Low speed high torque servo controller |
| 07/11/2012 | CN202334429U 基于等价补偿自抗扰的发电机转子电流控制系统 ADRC-based compensation equivalent generator rotor current control system |
| 07/11/2012 | CN202334428U 交流电机软起动的矢量控制系统 AC motor soft start vector control system |
| 07/11/2012 | CN202334427U 起重专用节能电机及调速系统 Lifting special energy-saving motors and speed control system |
| 07/11/2012 | CN102577093A Control device of motor drive device |
| 07/11/2012 | CN102577090A Method for controlling a motor |
| 07/11/2012 | CN102570963A Sliding mode control method for unbalanced load of direct current motor |
| 07/11/2012 | CN102570962A Double-fed wind power generation high-voltage through control structure, and generator and generation system providing with double-fed wind power generation high-voltage through control structure |
| 07/11/2012 | CN102570961A Method for implementing quick debugging of frequency converters in multiple application occasions based on application macros |
| 07/11/2012 | CN102570960A Method for observing rotor magnetic chain based on cross feedback double compensation method |
| 07/11/2012 | CN102570959A Control system and control method for low-voltage high-current permanent magnet synchronous motors |
| 07/11/2012 | CN102570958A System and method for controlling torque of induction motor in electric vehicle |
| 07/11/2012 | CN102570957A Control method for doubly-fed electric generator |
| 07/11/2012 | CN102570956A Direct-current motor control method based on resonance suppression |
| 07/11/2012 | CN102570470A Transient stability-based generator phase advancing depth determination method |
| 07/11/2012 | CN101989831B Control device of induction motor and application thereof |
| 07/11/2012 | CN101809857B Controller of rotary electric machine |
| 07/11/2012 | CN101741297B Method and device for inversely controlling fuzzy compensation of radial position of bearing-free synchronous reluctance motor |
| 07/11/2012 | CN101565003B Motor controller of electric automobile and control method thereof |
| 07/05/2012 | WO2010097246A3 Method for operating an induction machine containing a pulse-controlled converter |
| 07/05/2012 | US20120169268 System and method for controlling torque of induction motor in electric vehicle |
| 07/04/2012 | EP2472716A1 Anomaly detection device for a permanent magnet synchronous electric motor |
| 07/04/2012 | CN202309607U 高压变频器电机参数识别装置 High-voltage inverter motor parameter identification device |
| 07/04/2012 | CN202309606U 变频调速控制器 Variable speed controller |
| 07/04/2012 | CN202309605U 易接线的风电变桨专用伺服驱动器 Wind easy wiring pitch dedicated servo drives |
| 07/04/2012 | CN102545767A Bearingless synchronous reluctance motor decoupling control system and construction method thereof |
| 07/04/2012 | CN102545766A Novel speed regulating system suitable for driving electric automobile and current distributing method |
| 07/04/2012 | CN102545765A Motor control apparatus and method |
| 07/04/2012 | CN102545764A Pure electric vehicle driving motor stator resistance real-time on-line compensation method |
| 07/04/2012 | CN102545763A Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms |
| 07/04/2012 | CN102545762A Method for controlling a direct-drive wave power generation system |
| 07/04/2012 | CN102545761A Automatic calibrating device for initial zero-position angle of permanent magnet synchronous motor and using method of automatic calibrating device |
| 07/04/2012 | CN102545760A Control system |