| 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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| 03/15/2012 | DE102010040766A1 Method for increasing temperature of e.g. electrical turbo compressor utilized for supplying air to fuel cell of fuel cell system to produce electricity, involves producing heat-producing current flow in coil to produce magnetic field |
| 03/15/2012 | DE102007035234B4 Motorsteuerung Motor control |
| 03/14/2012 | EP2429074A2 Brushless motor control device and brushless motor system |
| 03/14/2012 | CN202168029U 一种步进电机细分驱动装置 A stepping motor drive unit subdivision |
| 03/14/2012 | CN102377386A Method and circuit for driving brushless motor and method and circuit for detecting rotation position of brushless motor |
| 03/14/2012 | CN102377378A Double-machine or multi-machine two-dimensionally integrated triphase asynchronous spindle direct drive type motor system |
| 03/14/2012 | CN101814893B Method for inhibiting stator current imbalance of doubly-fed wind turbine generator set |
| 03/14/2012 | CN101764567B Composite vector control method for permanent magnet synchronous wind generator |
| 03/08/2012 | WO2012030403A1 Improved method to save energy for devices with rotating or reciprocating masses |
| 03/08/2012 | WO2012029715A1 Electric motor drive device |
| 03/08/2012 | DE102011003866A1 Verfahren, Systeme und Vorrichtung zur Approximation von spitzensummierten Spannungen der Grundschwingung und der dritten Harmonischen in einer Mehrphasenmaschine Methods, systems and apparatus for approximating spitzensummierten voltages of the fundamental and the third harmonic in a polyphase machine |
| 03/08/2012 | DE102010040223A1 Method for field-oriented operation of permanently excited synchronous machine of drive system, involves determining target voltage components based on target current parameters, and providing target voltage components to control machine |
| 03/08/2012 | CA2808589A1 Improved method to save energy for devices with rotating or reciprocating masses |
| 03/07/2012 | EP2426814A1 Power conversion device |
| 03/07/2012 | EP2131488B1 Electric vehicle controller |
| 03/07/2012 | CN102368674A Method and system for resolving position of switched reluctance motor rotor |
| 03/07/2012 | CN102368673A Power balance control method of frequency converter multi-motor dragging system and test device |
| 03/07/2012 | CN102368657A Bearingless brushless direct current motor and control method thereof |
| 03/07/2012 | CN101917154B Method for acquiring stator and rotor current redundant signals of double-fed fan motor set |
| 03/06/2012 | US8129931 Motor control device, motor drive system, washing machine, air conditioner and method of changing magnetization amount of permanent magnet motor |
| 03/01/2012 | DE102011075980A1 Verfahren und Systeme für die Induktionsmotor-Steuerung Methods and systems for the induction motor controller |
| 02/29/2012 | EP2424105A2 Vector control apparatus and motor control system |
| 02/29/2012 | EP2422444A1 Vector control method for electric motors |
| 02/29/2012 | CN202153719U Double-fed motor energy saving control system based on PLC and frequency converter |
| 02/29/2012 | CN102365818A Alternating-current rotary machine controller |
| 02/29/2012 | CN102364871A Method for directly controlling torque of induction motor and control device |
| 02/29/2012 | CN102364870A Vector control method for driving four asynchronous motors by single inverter |
| 02/29/2012 | CN101834559B Phase-shifting output system of frequency converter of home appliance compressor and implementing method thereof |
| 02/22/2012 | EP2421148A1 Device and method for identifying mechanical parameters of an alternating current asynchronous motor without using a rotary encoder |
| 02/22/2012 | EP2421147A1 Device and method for identifying equivalent circuit parameters of an alternating current synchronous motor without using a rotary encoder |
| 02/22/2012 | EP2421146A1 Device and method for identifying magnetomechanical parameters of an alternating current synchronous motor without using a rotary encoder |
| 02/22/2012 | EP2421145A1 Apparatus and method for identifying equivalent circuit parameters of an alternating current asynchronous motor without using a rotary encoder |
| 02/22/2012 | CN102362425A Rotary electric machine controller |
| 02/22/2012 | CN102362424A Device and method for rotating electric machine |
| 02/22/2012 | CN102361433A Direct torque control method for harmonic voltage injected multi-phase induction motor |
| 02/22/2012 | CN102361430A Position sensor-free vector control device for built-in permanent magnetic synchronous motor |
| 02/22/2012 | CN102361429A Bearing-free asynchronous motor control method based on neural network inverse system theory |
| 02/21/2012 | US8120296 Motor magnetic pole position detecting device |
| 02/16/2012 | WO2012020153A1 Method for adjusting the electromagnetic torque of electric traction motors of railway vehicles |
| 02/16/2012 | US20120038311 Apparatus And Method For Rotating-Sensorless Identification Of Mechanical Parameters Of A Three-Phase Asynchronous Motor |
| 02/16/2012 | US20120038296 Controllable rectification device and electric motor comprising the same |
| 02/16/2012 | US20120038295 Method for operating a polyphase machine having a pulse-width-modulated inverter |
| 02/15/2012 | EP2319172B1 Operating a synchronous motor having a permanent magnet rotor |
| 02/15/2012 | CN102355195A Multi-inverter module paralleling frequency conversion device for transmission system and control policy |
| 02/15/2012 | CN102355193A On-line rotational inertia identification device for alternate current permanent magnet servo system and identification method |
| 02/15/2012 | CN102355192A Control method of reactive power of doubly fed wind power generator |
| 02/15/2012 | CN102355191A Initial magnetic pole positioning control device for electrically excited synchronous motor |
| 02/15/2012 | CN102355105A Novel synchronous electric motor and electric motor control system |
| 02/14/2012 | US8115431 Inverter control apparatus and motor drive system |
| 02/14/2012 | US8115430 Methods, systems and apparatus for controlling operation of two alternating current (AC) machines |
| 02/14/2012 | US8115429 Motor control apparatus and electric power steering system |
| 02/09/2012 | WO2012017766A1 Control device |
| 02/08/2012 | EP2415150A2 Method for operating an electrical machine and device for carrying out said method |
| 02/08/2012 | CN202143028U 三相交流异步电机变频调速控制装置 Three-phase AC induction motor speed control device |
| 02/08/2012 | CN102349231A 3-phase motor control device, 3-phase motor system, and 3-phase motor control method and program |
| 02/08/2012 | CN102349230A Controller of AC rotating machine |
| 02/08/2012 | CN102347726A Device and method for observing rotor position in motor control |
| 02/02/2012 | WO2012014526A1 Control apparatus of ac rotating machine |
| 02/02/2012 | WO2012014443A1 Control apparatus for ac rotating machine |
| 02/02/2012 | CA2806515A1 Control apparatus for ac rotary machine |
| 02/02/2012 | CA2806317A1 Control apparatus for ac rotating machine |
| 02/01/2012 | EP2413495A1 Semiconductor integrated circuit device |
| 02/01/2012 | EP2413494A1 Alternating-current rotary machine controller |
| 02/01/2012 | EP2413493A1 Rotary electric machine controller |
| 02/01/2012 | EP2413492A1 Device and method for rotating electric machine |
| 02/01/2012 | EP2412090A2 Electric machine, method for operating a separately excited synchronous machine and use of a separately excited synchronous machine |
| 02/01/2012 | EP1922806B1 System and method for parallel control of variable frequency drives |
| 02/01/2012 | CN102342016A Method and device for the angle sensor-free position detection of the rotor shaft of a permanently excited synchronous machine based on current signals and voltage signals |
| 02/01/2012 | CN102340278A Method for estimating stator flux of motor in vector converter |
| 02/01/2012 | CN102340277A Sensorless induction motor control device having function of correcting slip frequency of motor |
| 02/01/2012 | CN102340270A Programmable logic controller (PLC)-and-frequency-converter-based energy saving control system and method for doubly-fed motor |
| 01/31/2012 | US8104584 Elevator drive control strategy |
| 01/26/2012 | DE10327690B4 Vorrichtung zur Umformung der elektrischen Energie für ein Fahrzeugbordnetz A device for converting the electrical energy for a vehicle electrical system |
| 01/25/2012 | EP2179498B1 Method and apparatus for compensation of vibration effects of network asymmetry in a doubly-fed asynchronous machine |
| 01/25/2012 | CN102334277A 半导体集成电路器件 The semiconductor integrated circuit device |
| 01/25/2012 | CN102332862A Method for estimating rotor initial position of low-salient-pole embedded permanent magnet synchronous motor |
| 01/25/2012 | CN102332861A Method for controlling active power of double-fed wind power generator |
| 01/25/2012 | CN102332728A System for controlling permanent magnet wind turbine generator set according to given power under full wind condition |
| 01/25/2012 | CN102332727A Method for outputting active power by using smoothing permanent-magnet direct-driving wind power generating system of direct-current-side flywheel energy storage unit |
| 01/25/2012 | CN101969292B Method for identifying stator resistance parameters |
| 01/18/2012 | EP2408103A1 Controller of ac rotating machine |
| 01/18/2012 | CN202121543U AC motor driving device with vector control used in variable-pitch control system |
| 01/18/2012 | CN102326329A Ac motor control device and AC motor driving system |
| 01/18/2012 | CN102324890A Elevator door motor switch-in-place torque control method and elevator door motor device |
| 01/18/2012 | CN102324888A DSP based vector control system for variable-speed constant-frequency double-feed wind driven generator |
| 01/18/2012 | CN102324882A Wide range speed control system and current distribution method for hybrid excitation synchronous machine |
| 01/18/2012 | CN102321774A Automatic control device for rotation of blast furnace chute |
| 01/17/2012 | US8098032 Control system for multiphase rotary machines |
| 01/12/2012 | US20120007528 Ac motor control device and ac motor driving system |
| 01/11/2012 | EP2404376A1 Method and device for the angle sensor-free position detection of the rotor shaft of a permanently excited synchronous machine based on current signals and voltage signals |
| 01/11/2012 | EP1980864B1 Residual magnetic flux determining apparatus |
| 01/11/2012 | CN102317874A Magnetic pole position estimation method for AC synchronous motor |
| 01/11/2012 | CN102315816A Arbitrary level real-time sector subdivision direct torque control method |
| 01/11/2012 | CN102315815A Control apparatus and control method for AC electric motor |
| 01/11/2012 | CN102315814A Motor vector control method based on Hall position sensor |
| 01/11/2012 | CN101447363B Cylindrical linear induction motor control device of a high voltage circuit breaker and application method thereof |
| 01/05/2012 | WO2012000911A1 Training apparatus, arrangement and method |
| 01/05/2012 | WO2012000507A1 Permanent magnet generator inductance profile identification |
| 01/05/2012 | US20120001587 Power converting apparatus |
| 01/05/2012 | US20120001573 Controller for ac rotary machine |