| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 07/02/2009 | US20090167236 Control Apparatus for AC Rotary Machine and Control Method for AC Rotary Machine |
| 07/02/2009 | US20090167235 Apparatus for controlling inverter |
| 07/02/2009 | US20090167234 Converter device, rotating electrical machine control device, and drive device |
| 07/01/2009 | EP2075907A1 Power converter |
| 07/01/2009 | EP2075906A1 Vector controller of permanent magnet synchronous motor |
| 07/01/2009 | EP2075904A1 Sensorless control apparatus of synchronous machine |
| 07/01/2009 | CN201266905Y One-drawing-two control system of industry frequency changer based on digital signal processor |
| 07/01/2009 | CN201266904Y Improved structure of variable frequency motor electric box |
| 07/01/2009 | CN101471623A Chopping type bumpless switching bis-PLC intelligent speed-governing system of medium-pressure motor |
| 07/01/2009 | CN101471622A Apparatus for controlling inverter |
| 07/01/2009 | CN100508349C Inverter device for driving electric motor |
| 06/30/2009 | US7554780 Inverter system, AC rotating machine and electric power converter |
| 06/25/2009 | WO2009078216A1 Induction motor control device and motor constant measurement/computing method therefor |
| 06/25/2009 | WO2009078143A1 Inverter, electric vehicle equipped with the inverter, and hybrid vehicle equipped with the inverter |
| 06/25/2009 | WO2009078074A1 Electric power-steering controller |
| 06/25/2009 | US20090160380 Motor Drive Device and Control Method Thereof |
| 06/25/2009 | US20090160378 Motor controller of air conditioner |
| 06/25/2009 | US20090159348 Ac Voltage Output Apparatus and Hybrid Vehicle Including the Same |
| 06/25/2009 | DE102008058439A1 Elektromotorantriebssysteme, Kraftfahrzeuge und Phasenstromregelungsverfahren Electric motor drive systems, motor vehicles and phase current control method |
| 06/25/2009 | DE102007062609A1 Method for operating asynchronous motor, involves calculating changing current frequency with continuously detected motor torque on basis of load dependent speed characteristic |
| 06/25/2009 | DE102007058209A1 Verfahren zum Aufschalten eines Umrichters auf eine geberlos betriebene Asynchronmaschine Method for Intrusion of an inverter to run a sensorless induction machine |
| 06/24/2009 | EP2072924A1 Motor controller of air conditioner |
| 06/24/2009 | EP2072923A1 Motor controller of air conditioner |
| 06/24/2009 | CN101467344A 逆变器装置及空调机 Inverter device and air conditioners |
| 06/24/2009 | CN100505513C Middle voltage electromotor cutting wave dual DSP digital speed adjusting system for IGBT reverser |
| 06/24/2009 | CN100505512C Unified power control method of double-ended inverter drive systems for hybrid vehicles |
| 06/18/2009 | WO2009075272A1 Motor control device |
| 06/18/2009 | WO2009075271A1 Air compressor and motor control device |
| 06/18/2009 | WO2009075188A1 Motor power supply device and method for manufacturing the same |
| 06/18/2009 | WO2009074708A1 Use of a smart camera for controlling an industrial ac drive |
| 06/18/2009 | US20090151362 Motor drive architecture for high frequency ac bus |
| 06/17/2009 | EP2071717A1 Inverter apparatus |
| 06/17/2009 | EP2070184A1 Method and switching arrangement for the feedback of commutation energy of three-phase current drive systems with a current intermediate circuit converter |
| 06/17/2009 | EP1268323A4 Process for switching between mains supply and a frequency inverter and vice versa for an escalator drive |
| 06/17/2009 | CN201260148Y Apparatus for remote controlling multiple different devices by one frequency transformer |
| 06/17/2009 | CN101461130A Motor drive control system and control method thereof |
| 06/17/2009 | CN101459409A Frequency variable speed-adjusting device for both end power supplying multi-phase AC motor |
| 06/17/2009 | CN101459408A Motor transmission system without bearing for multiphase single sleeve winding |
| 06/17/2009 | CN100502226C Permanent-magnetic synchronous motor weak magnetic control system based on A. C. direct control |
| 06/11/2009 | WO2009072359A1 Ac motor controller |
| 06/11/2009 | WO2009071979A1 Drive apparatus, and drive-force output system having drive apparatus, and method for controlling the drive apparatus |
| 06/11/2009 | WO2007086648A3 Air conditioner and control method thereof |
| 06/11/2009 | US20090146603 MVDC power transmission system for sub-sea loads |
| 06/11/2009 | US20090146596 Voltage clamping and energy recovery circuits |
| 06/11/2009 | CA2708054A1 Control apparatus of alternating-current motor |
| 06/10/2009 | EP2068438A1 Permanent magnet synchronization motor vector control device |
| 06/10/2009 | EP2067649A2 Hybrid electric vehicle and control method therefor |
| 06/10/2009 | DE102008052923A1 Verfahren und System zum Steuern eines Wechselrichters bei Elektroantrieben von Fahrzeugen mit Getrieben mit zwei Modi Method and system for controlling an inverter in electric drives of vehicles with gearboxes with two modes |
| 06/10/2009 | DE102008052922A1 Verfahren und System zum Steuern einer Pulsbreitenmodulation bei einem Wechselrichter in Elektroantrieben Method and system for controlling a pulse width modulation in an inverter in electric drives |
| 06/10/2009 | DE102008052220A1 System zum Variieren einer Ventilcharakteristik und Antriebssystem für dasselbe System for varying a valve characteristic and propulsion system for the same |
| 06/10/2009 | DE102008018284A1 Motorsteuervorrichtung The motor control apparatus |
| 06/10/2009 | CN101454968A Cycloconverter power control system |
| 06/10/2009 | CN101453192A Power outputting device and control means thereof |
| 06/10/2009 | CN101453191A Ultra-start-up control driving power for digital controlled air weaving machine |
| 06/10/2009 | CN101453190A Non feedback type AC frequency conversion apparatus for asynchronous motor |
| 06/09/2009 | US7545116 Driver for induction motor and method of driving the same |
| 06/09/2009 | US7545115 Motor control and driver for electric boosting application |
| 06/04/2009 | WO2006006810A3 Power variable-type motor driving circuit and driving method |
| 06/04/2009 | US20090140675 Door drive |
| 06/04/2009 | DE102007057561A1 Torque determining method for electric machine, involves determining torque of machine while operating as generator and motor, respectively according to voltage, current and number of revolutions of electric drive |
| 06/03/2009 | EP2066022A2 Controller of Multi-Phase Electric Motor |
| 06/03/2009 | EP2066021A2 Controller of Multi-Phase Electric Motor |
| 06/03/2009 | CN101449457A Motor-driven control system and its control method |
| 06/03/2009 | CN101447762A Phase current sampling and regulating apparatus and methods, and electric motor drive systems |
| 06/03/2009 | CN101447761A Electric motor drive systems, motor vehicles, and methods of phase current regulation |
| 06/03/2009 | CN100495904C A frequency converter control method and device for principal axis of machine tool |
| 06/03/2009 | CN100495903C Smooth switching method for AC motor from transducer power to industrial power |
| 06/02/2009 | US7541769 Electric power converter and motor driving system |
| 05/28/2009 | WO2009066546A1 Motor control device |
| 05/28/2009 | US20090134835 Electric motor drive systems, motor vehicles, and methods of phase current regulation |
| 05/28/2009 | US20090134833 Phase current sampling and regulating apparatus and methods, and electric motor drive systems |
| 05/28/2009 | US20090134828 Method and system for operating an electric motor coupled to multiple power supplies |
| 05/28/2009 | DE4496438B4 Verfahren zur Steuerung eines elektrischen Kopplers zur Kopplung eines Wechselstromnetzes mit einem asynchronen Generator oder Motor und Koppler A method for controlling an electric coupler for coupling an AC network with an asynchronous generator or motor and coupler |
| 05/28/2009 | DE102008046245A1 Temperaturverwaltung eines Wechselrichtermoduls Temperature management of an inverter module |
| 05/27/2009 | EP2063339A1 Control method of electromotor |
| 05/27/2009 | EP2062801A1 Power supply system with multiphase motor and multiphase inverter |
| 05/27/2009 | CN201248027Y Frequency-change air conditioner |
| 05/27/2009 | CN201246144Y 油井变频控制系统和数据采集控制终端 Well inverter control system and data acquisition and control terminal |
| 05/27/2009 | CN101443995A Control device for AC rotary machinery |
| 05/27/2009 | CN101442290A Overmodulation method and system for bi-level space vector pulse duration modulation |
| 05/27/2009 | CN101442289A Control method for direct torsion of staircase waveform backemf brushless dc motor |
| 05/27/2009 | CN101442250A Combined frequency changer for mining |
| 05/27/2009 | CN101440991A Control method of low voltage operating fixed speed air conditioner |
| 05/27/2009 | CN101440609A Encoding controlled bidirectional balance road gate |
| 05/27/2009 | CN100492876C Method of controlling AC motor and controller |
| 05/27/2009 | CN100492875C Speed adjusting device and method |
| 05/27/2009 | CN100492860C Power inverter system and method of correcting power voltage of the same |
| 05/27/2009 | CN100492855C Apparatus and method for controlling inverter |
| 05/27/2009 | CN100492854C Supply unit, motor driving device and air conditioner |
| 05/27/2009 | CN100492849C Frequency-converter device |
| 05/27/2009 | CN100492832C Propulsion power system |
| 05/26/2009 | CA2372134C Motor control apparatus |
| 05/22/2009 | WO2009063786A1 Motor control device and control method thereof |
| 05/22/2009 | WO2009063692A1 Rotating electric machine control system and vehicle drive system including the rotating electric machine control system |
| 05/21/2009 | US20090128083 Motor drive with var compensation |
| 05/21/2009 | US20090128072 Dual lane control of a permanent magnet brushless motor using non-trapezoidal commutation control |
| 05/20/2009 | EP2061144A1 Discrete frequency soft starting method and its device for an electric machine |
| 05/20/2009 | DE112007001580T5 Wechselrichtersteuereinrichtung und Verfahren zu deren Betrieb Inverter control device and method for its operation |
| 05/20/2009 | CN201239668Y Double-electric machine variable-frequency control spiral centrifugal machine |
| 05/20/2009 | CN101436047A Control system of industrial production material transferring equipment |