Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284)
09/2010
09/15/2010CN101834519A Dead zone compensating method under low frequency based on high voltage large power frequency converter
09/15/2010CN101834481A Drive motor for compressor
09/15/2010CN101833607A Multi-objective hybrid particle swam optimization design method for double-fed wind power generator
09/14/2010US7795824 Linear motor automatic control circuit assembly for controlling the operation of a 3-phase linear motor-driven submersible oil pump of an artificial oil lift system
09/10/2010WO2010100989A1 Controller of electric motor
09/10/2010WO2010100934A1 Leakage current reduction device
09/09/2010US20100225258 Control of an alternator-starter for a hybrid electric vehicle having a disconnected high-voltage battery
09/08/2010EP2226931A1 Rotating electric machine control system
09/08/2010EP2226237A1 Electrically driven power steering device
09/08/2010EP2226236A1 Electrically driven power steering device
09/08/2010CN201577064U Open-loop vector control frequency converter
09/08/2010CN201577063U Special power saving device for fans and water pumps
09/08/2010CN201577062U Frequency converter for controlling rotary cutter
09/08/2010CN201576957U Variable frequency power supply control system of low-voltage motor
09/08/2010CN201576529U Variable-frequency air-cooling control cabinet of transformer
09/08/2010CN201575555U Converter with DDC control function for air conditioner
09/08/2010CN101826838A High-energy-efficiency multilevel high-voltage variable frequency speed control device with directly series-connected insulated gate bipolar transistors (IGBT)
09/08/2010CN101826837A Variable frequency control power module of wind power generator
09/08/2010CN101826836A Electric signal-based household appliance single-rotor compressor variable frequency controller and implementation method thereof
09/08/2010CN101826832A Motor drive system for driving motor provided with a plurality of windings
09/08/2010CN101825024A Stepless regulating engine of power battery automobile and automobile using same
09/08/2010CN101039099B Motor driving apparatus
09/07/2010US7791309 Motor controller and method of controlling the motor
09/07/2010US7791304 Method and device for determining the duty-cycles of PWM control signals of an inverter
09/02/2010US20100219926 Low-profile transformer
09/02/2010US20100219788 High phase order AC Machine with Short Pitch Winding
09/02/2010US20100219785 Power semiconductor device, method for manufacturing power semiconductor device, and motor drive apparatus
09/01/2010CN201571014U Low-voltage variable-frequency speed-regulating device
09/01/2010CN201571013U Electric control device of machine-mounted frequency conversion and speed regulation electric traction low seam coal mining machine
09/01/2010CN201571008U Speed regulator for breeze ceiling fan
09/01/2010CN1937399B Domestic electric washing machine using variable frequency driving with embedded thermal protection
09/01/2010CN1874138B Actuator for operating roller shelter and method of operating the same
09/01/2010CN101821942A Motor control device and magnetic pole position estimation method
09/01/2010CN101821941A Ac motor control device and AC motor control method
09/01/2010CN101821150A Electric power-steering controller
09/01/2010CN101821147A Wheel diameter measuring instrument for electric vehicle
09/01/2010CN101820247A Electric control loop of elevator main motor
09/01/2010CN101817473A Frequency conversion system of rotor of alternating current mine hoist
09/01/2010CN101252323B Method and apparatus to reduce PWM voltage distortion in electric drives
09/01/2010CN101170293B Motor drive device for washing and drying machine
09/01/2010CN101047360B Method and apparatus for increasing AC motor torque output at low frequency
08/2010
08/31/2010US7786694 Converter system, method, and converter
08/26/2010WO2010095585A1 Rotation control device for work machinery, control program and work machinery
08/26/2010WO2010095445A1 Inverter control device and electric compressor for ac motor
08/26/2010US20100213904 Vehicle and discharge method of smoothing capacitor in vehicle
08/26/2010DE112009000040T5 Steuerungssystem für eine elektrisch drehende Maschine und Fahrzeugantriebssystem, das das Steuerungssystem für die elektrisch drehende Maschine enthält A control system for an electric rotating machine and the vehicle drive system including the control system for the electric rotating machine
08/25/2010EP2221959A1 Inverter, electric vehicle equipped with the inverter, and hybrid vehicle equipped with the inverter
08/25/2010EP2221236A1 Electric power-steering controller
08/25/2010CN201563103U Frequency variable speed regulating device for rotary kiln
08/25/2010CN201563102U Motor infrared remote-control rotating speed controlling device based on double single chips
08/25/2010CN201563101U Cascade multi-level variable frequency speed-control device based on phase-shifting SVPWM modulator method
08/25/2010CN201563100U Transducer for controlling raising machine motor
08/25/2010CN1976213B Method for controlling AC motor
08/25/2010CN1956303B Self powered gate driver system
08/25/2010CN1613683B Control of vehicle motor
08/25/2010CN101814896A Remote control device and method for motor of submersible pump of offshore oil well
08/25/2010CN101814895A Copper bar assembly structure for variable frequency speed adjustor for replacing cable
08/25/2010CN101814882A Position-sensor-free permasyn motor direct driving device and driving method
08/25/2010CN101814879A Speed regulating device of dual-N-beat running switched reluctance motor
08/25/2010CN101425775B Controller and controlling method for non-bearing permanent magnet synchronous electric motor
08/25/2010CN101383590B Dragging device with high starting performance induction motor and frequency transformer cooperatively running
08/24/2010US7782009 Adjustable speed drive protection
08/24/2010US7781999 Power source apparatus for vehicle, vehicle and method of controlling power source apparatus
08/19/2010WO2010092759A1 Motor control device and electric power steering device
08/19/2010US20100207564 Power Source Estimation Methods and Apparatus
08/19/2010DE102009007961A1 Drive system, has energy storage and unipolar voltage, direct current link for supplying current to two inverters, respectively, and electric motor with stator windings that are inductively coupled with each other
08/19/2010DE102009007960A1 Antriebssystem, Verfahren zum Betreiben eines Antriebssystems und Verwendung Drive system, method of operating a drive system and using
08/19/2010DE102009007522A1 Steuerschaltung für einen Drehstromasynchronmotor Control circuit for a three phase asynchronous motor
08/18/2010EP2219290A1 Ac motor controller
08/18/2010EP2219289A1 Inverter device for washing machine
08/18/2010EP2217464A1 Drive apparatus, and drive-force output system having drive apparatus, and method for controlling the drive apparatus
08/18/2010EP2106633B1 System and method to extend synchronous operation of an active converter in a variable speed drive
08/18/2010CN201557079U Two-cavity anti-explosion frequency-conversion control box
08/18/2010CN201557032U Variable frequency motor and potential energy loading high-speed-ratio frequency conversion system for hoisting machinery
08/18/2010CN1966827B A device and a method for driving the motor of a washing machine
08/18/2010CN101809857A Controller of rotary electric machine
08/18/2010CN101807877A Control method for matrix frequency converter during supply of DC source
08/18/2010CN101806825A Method and system for measuring effective value of electric parameter of electric motor powered up by frequency converter
08/18/2010CN101442289B Control method for direct torsion of staircase waveform backemf brushless dc motor
08/17/2010US7777443 Method for providing energy saving service, method for deciding specification of electric motor, method for providing compressor version-up service, method for providing energy service using drive device for permanent magnet electric motor, compressor exchange method, and freezing/air conditioning device
08/17/2010US7777436 Sensorless drive for unipolar three phase brushless DC motors
08/12/2010WO2010089071A1 Drive system, method for operating a drive system, and use thereof
08/12/2010US20100201303 System for Controlling the Steady-State Rotation of a Synchronous Electric Motor
08/12/2010US20100201294 Variable magnetic flux drive system
08/11/2010EP2216895A2 Electric motor controller and electric motor controller for vehicle steering apparatus
08/11/2010EP1150406B1 Control device
08/11/2010CN201550078U Split type frequency variation speed control system of building hoist
08/11/2010CN201550073U Frequency-variable motor equipped with coder
08/11/2010CN201545975U Synergistic device of textile machine
08/11/2010CN201543492U Frequency converting control device of paper shredder
08/11/2010CN201542469U Food processing machine
08/11/2010CN101803177A Controller for electric motor
08/11/2010CN101803176A 可变磁通驱动系统 The variable flux drive system
08/11/2010CN101803172A Electric motor control apparatus and driving apparatus
08/11/2010CN101803171A rotating armature controller
08/11/2010CN101800507A DC power supply permanent magnet synchronous AC motor speed regulator
08/11/2010CN101505135B Controllable flux permanent magnet synchronous motor driving apparatus for built-in mixed rotor
08/11/2010CN101430168B Method and cooling system for improving cooling capacity of power station direct air cooling system
08/11/2010CN101069870B Frequency-variable control device for paper crusher and automatic speed-changing method
08/11/2010CN101034864B Controller for electric vehicle and driving apparatus for the electric vehicle
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