H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage

Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284)
11/2009
11/05/2009	DE102008001519A1 Streckenantrieb mit Frequenzumrichter und Verfahren zum Umrüsten einer Strecke Track drive with frequency converter and method for converting a route
11/04/2009	EP2114005A1 Device for controlling electric vehicle and electric vehicle equipped with the control device, and electric vehicle control method and computer readable recording medium on which program for allowing computer to execute the control method is recorded
11/04/2009	CN201341114Y Explosion suppression type four-quadrant variable frequency speed regulator
11/04/2009	CN201341113Y Control circuit of vehicle-mounted frequency-converter
11/04/2009	CN201341112Y Power supply circuit board of high voltage frequency transformer power unit
11/04/2009	CN201341111Y Power unit control circuit board of high-voltage frequency transformer
11/04/2009	CN201341110Y Analog quantity measuring circuit board of expandable frequency transformer
11/04/2009	CN201341109Y Frequency conversion cabinet for ship electric propulsion experiment system
11/03/2009	US7612522 Motor drive control with a single current sensor using space vector technique
11/03/2009	US7612519 Control arrangement for an induction motor compressor having at least three windings, a torque-augmentation circuit, a starting capacitor and a resistive element
11/03/2009	US7612518 Inverter apparatus and method of reducing speed of alternating current motor
11/03/2009	US7612512 Electronic control unit for controlling external half-bridge power output stages and an electric motor operated drive with electronic control unit
11/03/2009	US7612509 Motor controller
10/2009
10/29/2009	US20090267556 Fuel cell drive system
10/29/2009	DE102008019724A1 Generatorenanordnung Generator arrangement
10/28/2009	EP2112760A1 Method and arrangement in connection with a brake chopper
10/28/2009	EP2112043A1 Vehicle and its control method
10/28/2009	EP2112014A1 Drive force generation system, vehicle using the system, and method for controlling the system
10/28/2009	EP2111688A1 Apparatus and method for controlling the motor power
10/28/2009	CN101569087A Drive control apparatus and method for refrigerator type fan motor
10/28/2009	CN101567639A Phase current detector
10/28/2009	CN101565930A Movable span lifting device of vertical lift balance bridge
10/28/2009	CN101565003A Motor controller of electric automobile and control method thereof
10/27/2009	US7609023 Control apparatus for electric vehicles
10/27/2009	US7609022 Power supply system for vehicle with improved energy efficiency and vehicle including the same
10/27/2009	US7609010 Inverter
10/22/2009	WO2009128312A1 Converter control method
10/22/2009	US20090263260 Inverter device
10/22/2009	US20090261762 Drive device, hybrid vehicle equipped with the drive device, and control method for drive device
10/22/2009	DE102008018811A1 Method for determination of current zero crossover of current at phase of polyphase electric motor, involves determining phase angle with occurrence of sign change of measured phase voltage
10/21/2009	CN201332384Y Dragging device specially for oil pumping unit in oil field
10/21/2009	CN201332383Y Water passing motor control circuit
10/21/2009	CN201332382Y Back-to-back type unit series connection multilevel structure high-voltage transformer
10/21/2009	CN201330711Y Energy saving device of fan water pump
10/21/2009	CN101562423A Power supply equipment for linear motor with corresponding double winding and drive for vehicle moving along running track
10/21/2009	CN101562420A Servo controller system
10/21/2009	CN101559726A Drive device, hybrid vehicle equipped with the drive device and control method for the drive device
10/21/2009	CN100553112C Offset PWM signals for multiphase motor
10/21/2009	CN100553078C External water-cooling energy-saving constant power speed control motor
10/21/2009	CN100551736C Electrically operated drive controller, electrically operated drive control method
10/20/2009	CA2461326C Systems and methods for driving large capacity ac motors
10/15/2009	WO2009125683A1 Motor control device and control method thereof
10/15/2009	WO2009125063A1 Electrical system for a forklift
10/15/2009	WO2009125047A1 Power supply apparatus and power supply arrangement
10/15/2009	US20090256518 Vector control device of induction motor, vector control method of induction motor, and drive control device of induction motor
10/15/2009	US20090256502 Battery management system for a cordless tool
10/15/2009	US20090255744 Electric motor drive apparatus and vehicle including the same
10/15/2009	US20090255740 Voltage estimation feedback of overmodulated signal for an electrical vehicle
10/15/2009	US20090255278 Refrigerant System With Variable Speed Drive
10/15/2009	DE102009014769A1 Motorsteuervorrichtung The motor control apparatus
10/15/2009	DE102008018625A1 Electrical three-phase asynchronous motor i.e. three-phase asynchronous motor having squirrel cage, operating device, has switching or program part and control component increases ignition to decrease voltage-time surface of motor voltages
10/14/2009	CN201328095Y Mineral flame-proof type variable-frequency high-voltage soft start device
10/14/2009	CN201328058Y Low-speed, high-torque permanent-magnet motor and gearless lift traction machine
10/14/2009	CN101557196A Current regulator and current control method and system for AC motors
10/14/2009	CN101557195A Frequency variation and speed governing system of brushless double fed motor
10/14/2009	CN101557194A Motor driving apparatus
10/14/2009	CN100550600C Drive control device for AC motor
10/14/2009	CN100550599C Electric car controller
10/14/2009	CN100550598C Controlling of a direct-current motor
10/14/2009	CN100550594C Motor speed estimation system and method using hybrid model reference adaptive system
10/14/2009	CN100550591C Inverter and programming device thereof
10/14/2009	CN100549425C Dual-shaft vacuum pump
10/14/2009	CN100548817C Variable-frequency method for controlling powder escape amount during vacuum nitrogen filling
10/13/2009	US7602136 Mitigation of harmonic currents and conservation of power in non-linear load systems
10/13/2009	US7602132 Methods and system for motor drive information capture
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	US20090251096 Method and apparatus for torque ripple reduction
10/08/2009	DE102009003709A1 Systeme und Verfahren zum Starten von Generatoren mit variabler Drehzahl Systems and methods for starting of generators with variable-speed
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	EP2106633A2 System and method to extend synchronous operation of an active converter in a variable speed drive
10/07/2009	CN201322553Y Cooling system improving output and transmission efficiency of motor in direct air-cooling system
10/07/2009	CN201322552Y Cooling system in direct air-cooling system of power plant
10/07/2009	CN101553980A Method and circuit arrangement for continuously supplying power to a brushless electric motor
10/07/2009	CN101553696A Air conditioner and control method thereof
10/07/2009	CN101552591A Method and apparatus for torque ripple reduction
10/07/2009	CN101552590A Speed regulating and inverting controller for generating set
10/07/2009	CN100547874C DC supply system for container piling site tyre hoister
10/06/2009	US7599172 Electronic speed controller with modular layout
10/06/2009	US7598698 Motor control device
10/01/2009	WO2009120131A1 Method and device for increasing control accuracy in a pwm system
10/01/2009	WO2009119810A1 Servo motor position control device
10/01/2009	WO2009119462A1 Auxiliary artificial heart pump drive and auxiliary artificial heart system
10/01/2009	WO2009119215A1 Revolving electric motor control system, and vehicular drive system having the revolving electric motor control system
10/01/2009	US20090243534 Motor Drive Circuit
10/01/2009	US20090243531 Inverter apparatus
10/01/2009	US20090243530 Variable voltage output power source for model trains
10/01/2009	US20090243523 Electric rotating machine control system and vehicle driving system including the electric rotating machine control system
10/01/2009	US20090242292 Method and system for operating an electric machine
10/01/2009	DE102008015868A1 Einrichtung zur Drehzahlregelung für Asynchronmotoren Means for speed control of induction motors
09/2009
09/30/2009	CN101546983A Motor drive circuit
09/30/2009	CN100546170C Stepless speed regulating electric fan
09/30/2009	CN100546162C Control device and process of a converter and converter, and electrical installation comprising such a device
09/29/2009	US7595605 Method and control circuit for determining an operating state when controlling a fan motor
09/24/2009	WO2009116572A1 Permanent magnet synchronization motor
09/24/2009	WO2009116216A1 Device and method for controlling vehicle
09/24/2009	WO2009115330A1 Method and device for controlling a brushless ac motor
09/24/2009	WO2009054727A3 Control of heavy machines
09/24/2009	US20090239453 Compact electric sanding machine

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