| 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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| 12/30/2009 | CN201374678Y Controller of bearing-free permanent magnetic synchronous motor |
| 12/30/2009 | CN101615883A Controller for permanent magnet synchronous motor and motor control system |
| 12/30/2009 | CN100576719C Control device of motor for refrigerant compressor |
| 12/30/2009 | CN100576718C Control device of electromotor |
| 12/29/2009 | US7638967 Motor control unit |
| 12/24/2009 | US20090315492 Motor control unit and air conditioner having the same |
| 12/23/2009 | WO2009154491A1 A method for the estimation of the disturbances in a speed observer of an induction motor |
| 12/23/2009 | EP2136467A1 Permanent magnet rotary electric machine and permanent magnet motor drive system |
| 12/23/2009 | CN100573369C Motor control unit |
| 12/17/2009 | WO2009151033A1 Air conditioner, air conditioner manufacturing method, and compressor |
| 12/17/2009 | WO2009149796A2 Centrifugal pump unit |
| 12/17/2009 | WO2009149624A1 A space vector based synchronous modulating method and system |
| 12/16/2009 | EP2133991A1 Centrifugal pump assembly |
| 12/16/2009 | CN201364850Y Cylindrical linear induction motor control device of high-voltage circuit breaker |
| 12/16/2009 | CN101604955A Jiggling phase searching method for three-phase AC servo motor |
| 12/16/2009 | CN101604954A Comprehensive method for vector or direct torque control of doubly-fed wind generator |
| 12/16/2009 | CN101604953A Comprehensive method for vector or direct torque control of permanent magnetism type wind generator |
| 12/16/2009 | CN100571018C Electromotive power steering controller |
| 12/15/2009 | CA2265227C Two-dimensional variable limit proportional internal regulator |
| 12/10/2009 | DE19928481B4 Verfahren zur vereinfachten feldorientierten Regelung von Asynchronmaschinen Simplified method for field-oriented control of induction motors |
| 12/09/2009 | EP2131488A1 Controller of electric vehicle |
| 12/09/2009 | CN201360204Y Alternating current asynchronous speed-regulating electric motor |
| 12/09/2009 | CN101599738A Method for determining duty ratio of universal pulse width controlled by three-phase AD motor PWM |
| 12/09/2009 | CN101599737A Permanent magnet flux-switching generator voltage control method by space vector modulation |
| 12/09/2009 | CN100568705C Method and system for synchronous modulation of closed-loop base on space vector |
| 12/03/2009 | WO2009145270A1 Motor control device, and electric steering device |
| 12/03/2009 | US20090295316 Gearless wheel motor drive system |
| 12/03/2009 | DE102008025408A1 Steuer- oder Regelverfahren für einen Umrichter Control or regulation method for an inverter |
| 12/02/2009 | EP2127065A1 Indirect rotor resistance estimation system and method |
| 12/02/2009 | CN101594116A Double-core and split surge torsion runaway frequency conversion inhibiting system for high voltage motor of power plant |
| 12/02/2009 | CN101594114A Method for determining initial position angle of rotor of permanent magnet synchronous motor |
| 12/02/2009 | CN100566129C Constant slip frequency vector control method and system for linear induction motor |
| 12/02/2009 | CN100566128C AC rotating machine control device and method |
| 12/02/2009 | CN100566127C Vector controller of induction motor |
| 12/02/2009 | CN100566112C Drive system for multi-phase brush-less motor containing multi-phase |
| 12/01/2009 | US7626349 Low noise heating, ventilating and/or air conditioning (HVAC) systems |
| 11/25/2009 | CN100563093C A rotation blocking parameter recognition method and device for asynchronous motor |
| 11/24/2009 | US7622885 Linear electric motor controller and system for providing linear control |
| 11/19/2009 | WO2009071642A3 Applying a control unit to an asynchronous machine which is operated without a rotary encoder |
| 11/19/2009 | US20090284195 Gain adjustment to improve torque linearity of an electric machine during operation in a field weakening region |
| 11/19/2009 | US20090284194 Phase current measurements in a three phase inverter using a single common dc-link current sensor |
| 11/18/2009 | EP2120330A2 Apparatus for estimating the rotor slots quantity |
| 11/18/2009 | EP2120329A2 Method and apparatus for estimating the rotor temperature of an induction motor |
| 11/18/2009 | EP2120328A2 Complex phase locked loop |
| 11/18/2009 | EP2120327A2 Methods and apparatus for estimating the slip of a motor |
| 11/18/2009 | EP2120326A2 Method and apparatus for estimating induction motor electrical parameters |
| 11/18/2009 | CN201349195Y Parameter identification and control device for induction motor |
| 11/18/2009 | CN101582677A Motor non-speed sensor control method for smoothly switching composite rotating speed identification |
| 11/18/2009 | CN101582676A Automatic gear shifting control system of motor in electric automobile |
| 11/18/2009 | CN101582675A Space vector modulated method for linearly regulating speed of torque angle of permanent magnet flux switching motor |
| 11/18/2009 | CN100561858C Decoupling control method of permanent-magnet synchronous generator |
| 11/12/2009 | US20090278482 Servomotor current control method, current control program, recording medium, servomotor, and injection molding machine |
| 11/12/2009 | DE102008045630A1 Load side converter i.e. self-commuting pulse power converter, connecting method for encoder less permanently excited synchronous machine, involves calculating field position angle at time point with respect to orientation of field voltage |
| 11/12/2009 | DE102008001586A1 Verfahren zur Fehlerkorrektur bei einer Strommessung in einem mehrphasigen Stromnetz Method for error correction at a current measurement in a multiphase current network |
| 11/11/2009 | CN101577523A Current control method, program, recording medium, servomotor and injection molding machine |
| 11/11/2009 | CN101577522A Apparatus for carrying out improved control of rotary machine |
| 11/11/2009 | CN101577517A Device and method for direct torque control of permanent magnet synchronous motor |
| 11/10/2009 | US7615948 Controller for motor and control method for motor |
| 11/05/2009 | WO2009133700A1 Inverter control device and power conversion device |
| 11/03/2009 | US7612522 Motor drive control with a single current sensor using space vector technique |
| 11/03/2009 | US7612520 Method for operating a delta wound three-phase permanent magnet brushless motor |
| 10/29/2009 | US20090267547 Motor control device and magnetic pole position estimation precision confirming method |
| 10/29/2009 | US20090267546 Motor control device, motor drive system, washing machine, air conditioner and method of changing magnetization amount of permanent magnet motor |
| 10/29/2009 | DE102008019570A1 Control architecture for multi-phase alternating current motor, has converter of polar- into Cartesian coordinates producing blocked d-axis synchronous frame command voltage and blocked q-axis synchronous frame command voltage |
| 10/28/2009 | CN101567660A Motor control device and generator control device |
| 10/28/2009 | CN101567659A Motor control device, motor drive system, washing machine, air conditioner and method of changing magnetization amount of permanent magnet motor |
| 10/28/2009 | CN101567652A Permanent magnet motor start-up |
| 10/28/2009 | CN100555838C Motor driving apparatus |
| 10/27/2009 | US7609024 Auxiliary bus method |
| 10/21/2009 | CN100551736C Electrically operated drive controller, electrically operated drive control method |
| 10/15/2009 | US20090256503 Motor control apparatus and electric power steering system |
| 10/14/2009 | CN101558553A Method and controller for controlling an electric variable transmission |
| 10/14/2009 | CN101557196A Current regulator and current control method and system for AC motors |
| 10/14/2009 | CN101557193A Vector control method of non-sinusoidal counter-electromotive-force surface AC magnetoelectric machine |
| 10/14/2009 | CN101557190A Control method of net-side rectifier of double-fed asynchronous wind power generator under unbalanced network voltage |
| 10/14/2009 | CN100550597C Power supply apparatus with function of detecting abnormality of current sensor |
| 10/14/2009 | CN100550595C Controller for brushless motor |
| 10/13/2009 | US7602139 Signal conditioning apparatus and method for determination of permanent magnet motor rotor position |
| 10/13/2009 | US7602138 Driving apparatus and driving system for electric motor |
| 10/08/2009 | WO2009123118A1 Motor control device and electric power steering device |
| 10/08/2009 | WO2009123113A1 Motor control device and electric power steering device |
| 10/08/2009 | WO2009122647A1 Motor control device |
| 10/08/2009 | US20090251082 Controller for ac rotary machine |
| 10/08/2009 | DE102007058209B4 Verfahren zum Aufschalten eines Umrichters auf eine geberlos betriebene Asynchronmaschine Method for Intrusion of an inverter to run a sensorless induction machine |
| 10/07/2009 | CN100547904C Speed control method for asynchronous motor |
| 10/06/2009 | US7598689 Motor drive apparatus |
| 10/01/2009 | WO2009119810A1 Servo motor position control device |
| 09/24/2009 | WO2009116216A1 Device and method for controlling vehicle |
| 09/24/2009 | US20090237015 Motor Control Device |
| 09/24/2009 | US20090237014 Synchronous motor control device and method for optimizing synchronous motor control |
| 09/24/2009 | US20090237013 Control Apparatus and Method for Motor Drive System |
| 09/24/2009 | DE102009000616A1 Redundante Entladung eines DC-Busses für ein Elektromotorsystem Redundant discharge of a DC bus for an electric motor system |
| 09/24/2009 | DE102008015206A1 Reluctance identifying method for synchronous motor, involves detecting momentary current during change of adjustment of motor axle, and determining reluctance of synchronous motor using detected momentary current |
| 09/23/2009 | CN101540581A Apparatus for carrying out improved control of rotary machine |
| 09/22/2009 | US7592766 Gearless wheel motor drive system |
| 09/22/2009 | US7592765 Method and system for controlling synchronous motor drive systems |
| 09/17/2009 | WO2009113509A1 Inverter device |
| 09/17/2009 | US20090230900 Current regulator and current control method and system for ac motors |
| 09/17/2009 | DE102009000609A1 Stromregler und Verfahren und System zur Stromregelung für Wechselstrommotoren Current controller and method and system for current control for AC motors |
| 09/16/2009 | EP2101404A2 Method for determining and correcting the torque transmission given off by an electric motor |