Patents
Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487)
12/2004
12/28/2004US6834413 Variable speed leaf blower
12/23/2004US20040257015 Reversible motor
12/22/2004EP1488504A2 Motor current reconstruction via dc bus current measurement
12/22/2004EP0995260B1 Rotating electric motor system capable of vibrating and method for operating a rotating electric motor capable of vibrating
12/16/2004WO2004109903A1 Control device
12/16/2004WO2004109310A1 Device for determining constant of rotating machine
12/15/2004EP1487098A1 Motor temperature estimator and motor controller
12/15/2004EP1487097A1 Control constant adjusting apparatus
12/15/2004EP1487095A1 Process and means for braking a variable speed asynchronous motors
12/15/2004EP1485986A1 Closed-loop phase compensation controller
12/14/2004US6832127 Motor controller
12/14/2004CA2108403C Electrical distribution equipment with torque estimating capability
12/09/2004WO2004107556A1 Method for controlling doubly-fed machine
12/09/2004WO2004107555A1 Motor control unit
12/09/2004WO2004107537A1 Systems and methods for manufacturing adaptive electric machines
12/09/2004WO2004106143A1 Controller for electric power steering device
12/09/2004WO2004012238A3 Power transfer system with reduced component ratings
12/09/2004WO2003100959A3 System and method for controlling a rotating electromagnetic machine
12/09/2004US20040245951 Motor driving apparatus
12/09/2004DE102004010317A1 Robuste Stromregelvorrichtug für ein Servosystem Stromregelvorrichtug robust for a servo system
12/08/2004EP1484831A2 Motor driving apparatus
12/07/2004US6828751 Induction motor control system
12/02/2004US20040240134 Overload current protection device using magnetic impedance element
12/02/2004US20040239286 Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewith
12/02/2004US20040239279 Electric motor controller resonance frequency detection apparatus
12/01/2004EP1482633A1 Interface circuit for the control of an electric user and controlcircuit to control an electric motor with it
11/2004
11/30/2004US6823853 Thermal modeling of a switched reluctance motor
11/25/2004US20040232863 Inverter control method and its device
11/24/2004EP1479158A1 Method for defining quadrature-axis magnetizing inductance of synchronous machine
11/23/2004US6822415 Motor controller
11/18/2004WO2004100350A1 Method for providing energy saving service, method for deciding specification of electric motor, method for providing compressor version-up service, method for providing energy saving service using drive device for permanent magnet electric motor, compressor exchange method, and freezing/air conditioning device
11/18/2004US20040227482 Driver of electric compressor
11/09/2004US6815925 Systems and methods for electric motor control
11/03/2004EP1473179A2 Driver of electric compressor
11/03/2004CN1542279A Driver of electric compressor
11/03/2004CN1174171C Circuit for driving linear compressor
10/2004
10/28/2004WO2004093302A2 Ac servo driver motor power line disconnection detection method
10/28/2004WO2004093287A1 Method and sytem for controlling the reactive power of a variable speed drive
10/21/2004US20040206341 Thermal modeling of a switched reluctance motor
10/14/2004US20040201354 Vsd control
10/14/2004DE10315596A1 Synchronous motor control system, supplies filter in phase-locked loop with error value formed from weighted sum of output from phase discriminator
10/07/2004US20040195994 Apparatus for switching windings of ac three-phase motor
10/07/2004US20040195990 Robust current loop controller for servo system
10/05/2004US6801005 Method and apparatus for controlling three-phase power
09/2004
09/30/2004WO2004051840A8 Method for defining quadrature-axis magnetizing inductance of synchronous machine
09/30/2004US20040189223 Diagnostic strategy for an electric motor using sensorless control and a position sensor
09/29/2004EP1463194A1 Stepping motor driver
09/28/2004US6798159 VSD control
09/28/2004CA2388654C Energy conserving motor controller
09/23/2004WO2004082123A1 Ac motor control method and control device
09/23/2004WO2004082105A1 Estimation method
09/23/2004US20040184791 Closed loop feedback method for electric motor
09/23/2004CA2518953A1 Estimation method for controlling a brushless excited synchronous machine
09/22/2004CN1530314A Elevator controller
09/21/2004US6794840 Motor control method and motor control apparatus
09/16/2004WO2004079891A1 Method and arrangement in connection with slip-ring machine
09/16/2004US20040178763 Stepping motor driver
09/15/2004CN1529932A Electric motor control device
09/09/2004US20040174134 Method and apparatus to control input to AC induction motors
09/09/2004DE102004006023A1 Mehrwechselrichtersystem mit leistungsarmen Potentialschienenwelligkeiten und Verfahren dafür More inverter system with low power Potentialschienenwelligkeiten and method therefor
09/09/2004DE10153920B4 Verfahren zum Betrieb eines Steuergeräts Method for operating a control unit
09/01/2004CN1525628A Electric motor
08/2004
08/26/2004WO2004073158A1 Software-based adaptive control system for electric motors and generators
08/26/2004WO2004073155A1 In-wheel electric motor system
08/26/2004US20040164636 Electric motor
08/25/2004EP1450469A2 Electric motor
08/25/2004EP1064716A4 Electric motor monitoring circuit
08/24/2004US6781333 Drive control apparatus and method of alternating current motor
08/19/2004US20040160201 Multiple inverter system with low power bus ripples and method therefor
08/19/2004US20040159115 Apparatus for driving a compressor and a refrigerating air conditioner
08/18/2004EP1070384B1 Method and device for controlling a static converter powering an electrical source
08/11/2004EP0923192B1 Induction motor
08/05/2004WO2004066482A2 Electric motor controller
08/04/2004CN1518790A Constructive arrangement for starting system of electric motor
07/2004
07/28/2004EP1440505A1 Method for operating a control device
07/27/2004US6768279 Reprogrammable motor drive and control therefore
07/21/2004EP1439633A1 APPARATUS FOR SWITCHING WINDINGS OF AC THREE−PHASE MOTOR
07/15/2004US20040135534 Electric motor controller
07/15/2004US20040134267 Diagnostic system and method for an electric motor using torque estimates
07/13/2004US6762580 Electric motor velocity controller
07/08/2004WO2004057750A1 Induction motor supply control device
07/08/2004US20040130287 Induction motor control system
07/07/2004CN1156957C Process and control device for motor output suitable for being controlled through communication bus
07/06/2004US6759822 Methods and apparatus to improve the performance of universal electric motors
07/01/2004WO2003084044A3 Motor current reconstruction via dc bus current measurement
07/01/2004DE10057025B4 Phasensparende Tiefpassfilter zur Antriebsregelung bei hoher Regeldynamik Phase-saving low-pass filter to the drive control with high dynamic response
06/2004
06/30/2004CN1509513A Motor driving device and apparatus including same device
06/29/2004US6756763 Sensorless induction motor control
06/29/2004US6756757 Control system and method for a rotating electromagnetic machine
06/29/2004CA2153792C Control unit for motor
06/23/2004CN1507688A Motor load controller for AC induction motors
06/22/2004US6753631 Magnetically levitated motor
06/17/2004WO2004051840A1 Method for defining quadrature-axis magnetizing inductance of synchronous machine
06/15/2004US6750626 Diagnostic strategy for an electric motor using sensorless control and a position sensor
06/09/2004CN1502814A Compressor driving device and freezing air conditioner device
06/08/2004US6747428 Device and method for controlling supply of current and static capacitance to compressor
06/08/2004US6747426 Motor control apparatus and method
06/08/2004US6747425 System for sharing power and signal pins on a motor controller
06/03/2004WO2004036755A9 Space vector pwm modulator for permanent magnet motor drive
06/03/2004US20040103719 Diagnostic system and method for an electric motor using torque estimates
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