| 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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| 02/26/2013 | US8381644 Motor drive control device |
| 02/21/2013 | WO2013025359A2 Apparatus for continued operation of an electric motor during an interruption in input power |
| 02/21/2013 | WO2013024828A1 Motor control device and work machine using same |
| 02/21/2013 | WO2013024780A1 Pm motor position-sensorless control device |
| 02/21/2013 | US20130043824 Control device for an asynchronous electric machine, electric propulsion system comprising said device, and method for controlling an asynchronous electric machine |
| 02/21/2013 | US20130043819 Chiller Motor Control System |
| 02/21/2013 | US20130043813 Apparatus for Continued Operation of an Electric Motor During an Interruption in Input Power |
| 02/21/2013 | DE102011081216A1 Drehstrommaschinen-Ansteuerverfahren und -vorrichtung Three-phase machines driving method and apparatus |
| 02/21/2013 | DE102011081215A1 Drehstrommaschinen-Ansteuerungsverfahren und -vorrichtung Three-phase machine control method and apparatus |
| 02/21/2013 | DE102011081174A1 Power electronics device i.e. inverter, for use in hybrid powertrain of motor car to supply electrical power to electric machine, has combining unit forming position value based on pilot control value and control portion |
| 02/21/2013 | DE102011081173A1 Betriebszustandsschaltung für Wechselrichter und Verfahren zum Einstellen von Betriebszuständen eines Wechselrichters Mode circuit for inverter and procedures for setting operating conditions of an inverter |
| 02/21/2013 | CA2845511A1 Apparatus for continued operation of an electric motor during an interruption in input power |
| 02/20/2013 | EP2559159A2 Electric machine; control device for controlling said electric machine; electric propulsion system comprising said electric machine and said control device; and method for controlling said electric machine |
| 02/20/2013 | CN202750043U Self-adaptive high-efficiency energy-saving oil-field oil-pumping-unit electric device |
| 02/20/2013 | CN202744717U Frequency control system of high-speed electron sectional warping machine |
| 02/20/2013 | CN102939714A Voltage inverter and method of controlling such an inverter |
| 02/20/2013 | CN102938629A Low-voltage micro gas turbine driving and generating system |
| 02/20/2013 | CN102035399B Processing methods for separately adjusting voltage and frequency of frequency converter |
| 02/19/2013 | US8380398 Motor control unit and motor control unit for vehicle steering apparatus |
| 02/19/2013 | US8378618 Systems and methods for controlling operations of a motor |
| 02/19/2013 | US8378608 Systems, devices, and/or methods for managing drive power |
| 02/19/2013 | US8378604 DC brushless motor drive circuit with current variable-voltage |
| 02/19/2013 | US8378601 Control apparatus for permanent magnet synchronous motor |
| 02/14/2013 | WO2013021998A1 Control device |
| 02/14/2013 | WO2013021562A1 Motor control device |
| 02/14/2013 | WO2013021460A1 Vehicle and method of controlling vehicle |
| 02/14/2013 | WO2013020355A1 A control system to realize input power changing along with both loads and rotate speed by an inverter bridge dragging many sets of motors |
| 02/14/2013 | DE102011052568A1 Device for controlling drive motor of air conditioning compressor for mobile air conditioning apparatus, has inverter for inverting direct current voltage, and input that is approximate equal to power output, where output is not constant |
| 02/14/2013 | CA2844565A1 A control system for realizing the change of input power with load and rotating speed simultaneously, by driving multiple electric motors via one inverter bridge |
| 02/13/2013 | CN202737809U Variable-frequency governor for fan in automobile cab |
| 02/13/2013 | CN202737808U Motor driving device with energy storage unit |
| 02/13/2013 | CN202737807U Forcing type concrete mixer rotating speed frequency conversion apparatus |
| 02/13/2013 | CN202737806U Mine explosion-proof driver integrating frequency converter and electric motor |
| 02/13/2013 | CN202737805U Industrial and mining enterprise system power saving server |
| 02/13/2013 | CN202737752U High voltage frequency converter and high voltage frequency converter system |
| 02/13/2013 | CN102934356A Chiller motor control system |
| 02/13/2013 | CN102934355A Control method and control device for an electric power regulator |
| 02/13/2013 | CN102934354A Electric motor having pulse width modulator |
| 02/13/2013 | CN102934353A Synchronous machine control device without position sensors |
| 02/13/2013 | CN102931910A T-source type variable-frequency speed adjustment system |
| 02/13/2013 | CN102931909A Switchable conduction type two-phase alternating current variable-frequency motor driving circuit |
| 02/13/2013 | CN102931908A Orthogonal pulse capture circuit for variable-frequency governor |
| 02/13/2013 | CN102931890A Control system for driving a plurality of motors by using inverter bridge to change input power simultaneously along with load and rotating speed |
| 02/13/2013 | CN102208895B Method and device for detecting initial position angle of electro-excitation synchronous machine rotor |
| 02/13/2013 | CN101978593B Control device and control method for vehicle |
| 02/13/2013 | CN101485079B Sensorless control apparatus of synchronous machine |
| 02/13/2013 | CN101483402B Motor drive apparatus equipped with dynamic braking circuit fault detection capability |
| 02/12/2013 | US8373371 Control of an electric machine |
| 02/12/2013 | US8373369 Method and amplifier for operating a synchronous motor |
| 02/07/2013 | WO2013018820A1 Power conversion device and electric automobile |
| 02/07/2013 | WO2013018611A1 Synchronous motor driving device and device equipped with same and having a refrigeration cycle |
| 02/07/2013 | WO2013018411A1 Motor drive circuit, motor device, and moving vehicle |
| 02/07/2013 | WO2013018349A1 Method for calculating motor constant of permanent magnet synchronous electric motor and motor constant computation device |
| 02/07/2013 | US20130033214 Rotating Electric Machine for Electric Vehicle, Drive Control Device and Insulation Diagnosis Method |
| 02/07/2013 | DE102012212308A1 Verfahren, Systeme und Vorrichtung zum Anpassen eines Modulationsindexes zur Verbesserung der Linearität von Phasenspannungsbefehlen Methods, systems, and apparatus for adjusting a modulation index to improve the linearity of the phase voltage commands |
| 02/06/2013 | CN202721646U Frequency control device of railway car |
| 02/06/2013 | CN202721645U Energy saving electrical control apparatus for tracking type oil field oil pumping unit |
| 02/06/2013 | CN202721480U A charging and inverting integrated device of a pure electric vehicle |
| 02/06/2013 | CN102916651A Motor control device |
| 02/06/2013 | CN102916650A Two-phase alternating-current frequency conversion motor drive circuit supplied by direct-current power source |
| 02/06/2013 | CN102916649A Frequency conversion control cabinet |
| 02/06/2013 | CN102916648A Inverter control device |
| 02/06/2013 | CN102916646A Methods, systems and apparatus for adjusting modulation index to improve linearity of phase voltage commands |
| 02/06/2013 | CN102916643A Three-phase rotary machine control apparatus |
| 02/06/2013 | CN102916641A Multi-phase rotary machine control apparatus and electric power steering system using the same |
| 02/06/2013 | CN102046888B Swing drive controller and construction machine including the same |
| 02/06/2013 | CN102005960B Inverter with three bridge arms and nine switches for dual-alternating-current motor drive and control method thereof |
| 02/05/2013 | US8368344 Refrigerator and operating method thereof |
| 02/05/2013 | US8368343 Motor control device |
| 02/05/2013 | US8368342 Apparatus and method for generating electromagnetic torque in an electric machine |
| 02/05/2013 | US8368333 Motor with circuits for protecting motor from input power outages or surges |
| 02/05/2013 | US8365545 Inverter system for on-vehicle air conditioner |
| 01/31/2013 | WO2013015167A1 Power conversion device and power conversion system |
| 01/31/2013 | WO2013015010A1 Power converter |
| 01/31/2013 | WO2013014798A1 Motor control device |
| 01/31/2013 | WO2013014334A2 Electricity supply device and elevator system |
| 01/31/2013 | WO2013013869A1 Energy storage device, system having an energy storage device, and method for operating an energy storage device |
| 01/31/2013 | US20130026958 Variable speed drive |
| 01/31/2013 | DE102012014320A1 Temperaturerfassungsvorrichtung, die eine Temperatur eines Rotors eines Motors erfasst Temperature detecting means that detects a temperature of a rotor of a motor |
| 01/31/2013 | DE102011108417A1 Antriebssystem und Verfahren zum Betreiben eines Antriebssystems Drive system and method of operating a drive system |
| 01/31/2013 | DE102011079995A1 Method for operating drive system of e.g. engine, involves varying modulation depth of network-side or machine-side converters by average modulation depth of intermediate circuit, to supply alternating current power |
| 01/31/2013 | DE102011052274A1 Verfahren und Vorrichtung zur Schutzzeitkompensation Method and apparatus for protection delay compensation |
| 01/30/2013 | EP2552008A1 Inverter device and electric device using same |
| 01/30/2013 | EP2550730A2 Variable electrical generator |
| 01/30/2013 | CN202713226U Intelligent load tracking mine-used flameproof frequency-conversion speed-adjusting device |
| 01/30/2013 | CN202713225U Motor power supply switching device |
| 01/30/2013 | CN202713224U Crane special-purpose motor stator pressure regulation speed regulation controller |
| 01/30/2013 | CN202713188U AC (Alternating Current) frequency-conversion inverter controlling device for locomotives |
| 01/30/2013 | CN202709306U Transducer air-conditioner power supply circuit assembly and transducer air-conditioner |
| 01/30/2013 | CN102906993A Control apparatus and control method for motor |
| 01/30/2013 | CN102904523A Controller and method for determining modulation scheme |
| 01/30/2013 | CN102904271A Traction contact system |
| 01/30/2013 | CN102035402B Integrated gate-commutated thyristor (IGCT)-based hybrid cascaded H-bridge multi-level high-voltage inverter |
| 01/30/2013 | CN101997479B Apparatus for driving motor of air conditioner and method for driving the same |
| 01/30/2013 | CN101682273B Method for driving a pulse width modulated controller |
| 01/30/2013 | CN101394145B Low speed synchronous motor drive operation |
| 01/29/2013 | US8364349 Motor controller and electric power steering apparatus with temperature detector of the motor |
| 01/29/2013 | US8362738 Determination of the position of the rotor of an electric machine |
| 01/29/2013 | US8362723 Motor drive circuit |
| 01/24/2013 | WO2013011807A1 Rotating electric machine control device |