| 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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| 07/17/2013 | CN103208967A Apparatus and method for controlling fan motor |
| 07/17/2013 | CN103208954A Motor drive system |
| 07/17/2013 | CN103208908A Driver for switching element and control system for rotary machine using the same |
| 07/17/2013 | CN101636901B Electric power generation system with multiple generators and/or inverters |
| 07/17/2013 | CN101401295B Electric motor control apparatus |
| 07/16/2013 | US8487568 Circuit arrangement for an electric drive |
| 07/16/2013 | US8487558 Electric vehicle |
| 07/16/2013 | CA2698956C Controller of motor |
| 07/11/2013 | WO2013102999A1 Heat pump device, air conditioner, and refrigerator |
| 07/11/2013 | WO2013102673A1 System for supplying an ac load from a plurality of dc voltage sources |
| 07/11/2013 | WO2013007486A3 Method for actuating a multi-phase machine |
| 07/11/2013 | WO2012177498A3 Variable frequency drive voltage boost to improve utilization |
| 07/11/2013 | US20130175958 Systems and methods for transmitting and/or utilizing hvdc power in a submarine environment |
| 07/11/2013 | US20130175012 Power conversion device, motor including the same, air conditioner having the motor incorporated therein, and ventilation fan having the motor incorporated therein |
| 07/11/2013 | DE102012000170A1 Stromkurve für eine supraleitende elektrische Maschine Current curve for a superconducting electrical machine |
| 07/10/2013 | EP2613435A1 Drive system of synchronized electric motor |
| 07/10/2013 | EP2613106A1 Heat pump device, heat pump system and three-phase inverter control method |
| 07/10/2013 | EP2612436A1 Improved method to save energy for devices with rotating or reciprocating masses |
| 07/10/2013 | CN203057067U A motor and a speed-regulating control circuit thereof |
| 07/10/2013 | CN203057066U Feedforward compensation energy-saving control converter |
| 07/10/2013 | CN203057065U Special frequency converter for mine hoisting |
| 07/10/2013 | CN103201948A 电动机控制装置 A motor control unit |
| 07/10/2013 | CN103201947A System and method for fast discharge of a ring motor field |
| 07/10/2013 | CN103201933A Electric machine system including an alternating electric current (AC) electric machine having a switch module |
| 07/10/2013 | CN103199789A Methods and systems for sensorless control of an electric motor |
| 07/10/2013 | CN103199787A Load disturbance resistant method and device thereof based on hybrid regulator |
| 07/10/2013 | CN102224304B Rotation control device for work machinery, control method and work machinery |
| 07/10/2013 | CN101803177B Controller for electric motor |
| 07/09/2013 | US8482245 Power conversion device |
| 07/09/2013 | US8482234 Motor drive control device |
| 07/09/2013 | US8482232 Motor drive circuit |
| 07/09/2013 | CA2708054C Control apparatus of alternating-current motor |
| 07/09/2013 | CA2700612C Motor controlling device |
| 07/09/2013 | CA2696215C Medium voltage inverter system |
| 07/09/2013 | CA2659088C Variable-flux motor drive system |
| 07/04/2013 | WO2012119795A3 Control unit |
| 07/04/2013 | US20130169204 Power supply unit for press machine |
| 07/04/2013 | DE112010005850T5 Wechselstrommotor-Antriebsvorrichtung AC motor driving device |
| 07/04/2013 | DE102012221476A1 Verfahren, systeme und geräte zum steuern des betriebs einer elektrischen maschine in einem übermodulationsbereich Procedures, systems and apparatus for control of factory electric machine in an over modulation range |
| 07/03/2013 | CN203039642U Velocity sensor-free asynchronous motor controller |
| 07/03/2013 | CN203039641U Three-phase inverter based on programmable counter array |
| 07/03/2013 | CN203039640U Alternating-current frequency-variable motor control system based on hand wheel and pedal switch |
| 07/03/2013 | CN203039639U Medium- voltage frequency conversion system for shale gas exploitation |
| 07/03/2013 | CN203039636U Frequency converter for space vector control |
| 07/03/2013 | CN203039635U Indirect-type matrix control system of ship driven by electricity converted from electricity-oil hybrid power |
| 07/03/2013 | CN103190068A Power converter |
| 07/03/2013 | CN103187918A Traction invertor controlling method and device |
| 07/03/2013 | CN103187916A Motor control system for electric fork-lift truck |
| 07/03/2013 | CN103187905A 电动机控制装置和空调机 Motor control device and air conditioner |
| 07/03/2013 | CN102185490B Medium-voltage frequency converter capable of realizing AC-AC (alternating-current) direct transformation |
| 07/03/2013 | CN101959745B Electric power steering apparatus |
| 07/02/2013 | US8476862 Power supply controller |
| 07/02/2013 | US8476859 DC power for SGCT devices using a high frequency current loop with multiple current transformers |
| 07/02/2013 | US8476857 Device for supplying energy to a long stator winding having multiple winding sections |
| 07/02/2013 | US8476854 Power supply device |
| 06/27/2013 | WO2013095255A1 Method and system for controlling driving of a vehicle |
| 06/27/2013 | WO2013094360A1 Synchronous motor drive apparatus |
| 06/27/2013 | WO2013094330A1 Power conversion device |
| 06/27/2013 | WO2013092030A1 Method for actuating a power converter circuit |
| 06/27/2013 | US20130162183 Electrolytic capacitor reformation systems and methods |
| 06/27/2013 | DE202013102392U1 Steuerungsanordnung für eine Synchronmaschine Control arrangement for a synchronous machine |
| 06/26/2013 | EP2608395A1 Method for actuating a frequency converter |
| 06/26/2013 | CN203027194U Electric locomotive alternating current frequency conversion speed regulator |
| 06/26/2013 | CN203027193U Electric locomotive alternating current frequency conversion speed regulator with motor over-current protection |
| 06/26/2013 | CN203027192U Energy-saving device of three-phase motor with high acceleration and deceleration |
| 06/26/2013 | CN203027191U Constant temperature and constant humidity type variable frequency air conditioner speed adjustment energy-saving controller |
| 06/26/2013 | CN203027190U Motor speed correcting and optimizing system |
| 06/26/2013 | CN203027189U Frequency conversion speed-regulating energy-saving device of fiber winnowing fan |
| 06/26/2013 | CN203027188U Frequency conversion speed-regulating energy-saving device of fiber drying fan |
| 06/26/2013 | CN203027187U Power frequency and frequency conversion switching device of frequency converter |
| 06/26/2013 | CN203027180U Controller of three-phase operation direct current brushless electric motor |
| 06/26/2013 | CN203027170U Low voltage frequency converter with rotating speed tracing start function |
| 06/26/2013 | CN103181074A 马达驱动系统及其控制方法 Motor drive system and control method |
| 06/26/2013 | CN103178777A Mining explosive-proof and intrinsic-safe type variable frequency center |
| 06/26/2013 | CN103178776A Frequency converter special for speed regulation of storage-battery electric locomotive |
| 06/26/2013 | CN103178775A Special frequency converter for speed regulation of trolley locomotive |
| 06/26/2013 | CN103178774A Frequency converter special for speed regulation of storage-battery electric locomotive |
| 06/26/2013 | CN103178773A Variable speed drive and cooler system |
| 06/26/2013 | CN103178772A Control circuit for novel air compressor motor |
| 06/26/2013 | CN103178771A Motor control system for limiting regenerative current |
| 06/26/2013 | CN103178756A Intelligent control method capable of reducing higher harmonics for pumping unit |
| 06/26/2013 | CN103178740A Special frequency converter for speed regulation of electric trolley locomotive |
| 06/26/2013 | CN101299591B Method and system for motor control with delay compensation |
| 06/25/2013 | US8471519 Control device and control method for AC motor |
| 06/25/2013 | US8471518 Power conversion device |
| 06/25/2013 | US8471514 Adaptive harmonic reduction apparatus and methods |
| 06/20/2013 | WO2013090151A1 Lockout switching strategy for preventing high voltage transition |
| 06/20/2013 | WO2013088832A1 Motor drive device |
| 06/20/2013 | US20130158808 Motor control apparatus and electric power steering apparatus |
| 06/20/2013 | US20130154531 Ac motor driving apparatus |
| 06/20/2013 | US20130154530 Variable Switching Frequency Power Converter |
| 06/20/2013 | US20130154521 Battery with Variable Output Voltage |
| 06/20/2013 | DE102011121154A1 Verfahren zum Optimieren des Betriebs eines Elektromotors A method for optimizing the operation of an electric motor |
| 06/20/2013 | DE102011088729A1 Drehzahlfenster basierte Regelstrategie für Elektromaschine Speed window-based control strategy for electric machine |
| 06/19/2013 | EP2605400A1 Method for controlling an inverter for supplying electricity to a motor, and related control module |
| 06/19/2013 | EP2605399A1 Motor drive system and control method thereof |
| 06/19/2013 | EP2605398A1 Motor drive system and control method thereof |
| 06/19/2013 | CN203014742U Variable-frequency control device for explosion-proof elevator |
| 06/19/2013 | CN203014741U Down-the-hole drill rotation variable-frequency speed regulation system |
| 06/19/2013 | CN203014740U System for regulating speed of filter tip cutting knife |