Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils › 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)
11/2000
11/29/2000CN1275257A Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving hydraulic pump
11/29/2000CN1274987A Variable-speed control device used with induction motor together
11/28/2000US6154002 Control apparatus for permanent magnet electric motor used in electric motor vehicle
11/23/2000DE19958934A1 Motor control unit for controlling switching element of each switching arm and regulating current supplied to motor in vehicle, has high voltage and low voltage switching units and temperature detection diodes
11/22/2000CN1058819C Circuit arrangment for powering load
11/16/2000WO2000069061A1 Variable-speed drive for single-phase motors
11/15/2000EP1052769A2 Inverter and motor
11/15/2000EP1051787A1 Method for symmetrizing asymmetric faults
11/09/2000WO2000039917A3 Prime mover for operating an electric motor
11/08/2000CN1058358C Motor control apparatus
11/07/2000CA2176263C Method and device for speed control of an ac motor
11/02/2000EP1049245A1 Method of controlling an induction motor
11/02/2000EP1049243A2 Method for connecting an coverter to an induction motor and inverter with electronic control
11/02/2000EP1049241A2 Modified space vector pulse width modulation technique to reduce DC bus ripple effect in voltage source inverters
11/02/2000EP0764359B1 Improved emi filter topology for power inverters
11/01/2000CN1271658A Controller for electric railway train
10/2000
10/25/2000CN1057879C Pulse-width modulation control system for electric power converter
10/24/2000US6138047 Low frequency PWM generation method for a microprocessor-based controller
10/24/2000US6137258 System for speed-sensorless control of an induction machine
10/24/2000US6135732 Well pumping equipment
10/18/2000EP1045514A1 Process for controlling a rotating machine and power supply for such a machine
10/17/2000US6134128 Method for protecting a high-performance power converter and a protection arrangement for executing the method
10/17/2000CA2029310C Motor controller with an improved stopping technique
10/05/2000WO2000059114A1 Method and apparatus for providing pulse width modulation
10/05/2000DE19924416C1 Current detection device for pulse width modulated electronic setting elements e.g. for drive regulator, uses control device for switching gate unit with 2 transistors for measuring current at discrete intervals
10/05/2000DE10012280A1 Control system e.g. for induction motor driver, has reference point adjuster which adjusts point at arbitrary position on stator current vector surface plane
10/05/2000CA2380705A1 Method and apparatus for providing pulse width modulation
10/04/2000CN1269065A Method for estimating induced electromotive force and speed of induction motor, method for correcting misalignment of shaft threof, and induction motor controller
09/2000
09/27/2000CN1267954A Induction motor driver and its parameter estimation method
09/26/2000US6124645 Electric motor rotor holding arrangement
09/20/2000EP1037376A2 Polyphase AC machine controller
09/20/2000EP1037375A2 Data interface module for motor control system
09/20/2000EP1037372A2 Method of controlling the starting, stopping and speed of an AC induction motor
09/20/2000EP1036994A2 Air conditioner
09/20/2000CN1267405A Method for inferring initial pole position of permanent magnet brushless motor
09/20/2000CN1267129A Controller for multiphase AC motors
09/20/2000CN1267127A Method for controlling start, stop and speed of AC induction motor
09/20/2000CN1267125A Data interface module for electric machine control system
09/19/2000US6122184 Method and system for an improved converter output filter for an induction drive system
09/19/2000US6121749 Variable-speed drive for single-phase motors
09/19/2000US6121748 Method and apparatus for controlling an induction motor
09/13/2000EP1035645A1 Control device of induction motor
09/13/2000EP1034968A1 Multiple power source system and apparatus, motor driving apparatus, and hybrid vehicle with said system mounted thereon
09/12/2000US6118932 Method and arrangement for a high voltage single-stage variable speed drive
09/12/2000US6118247 Drive control apparatus for electric synchronous machine having field winding
09/12/2000US6118244 Circuit arrangement for powering an electric motor
09/06/2000CN1265784A Power converter
08/2000
08/31/2000WO2000030243A3 A system and a method for protecting an electric motor and its control circuit and an electric motor
08/29/2000US6111766 Method for compensating an output signal of an electronic device
08/29/2000US6111386 Method for controlling an asynchronous machine
08/29/2000CA2039280C Apparatus for controlling an electric motor
08/23/2000CN1055808C Driving device for induction motor
08/23/2000CN1055807C Driving device for induction motor
08/22/2000US6107776 Inverter control device
08/22/2000US6107774 Apparatus and method for controlling drive of three-phase multiplex winding motor
08/17/2000WO2000048047A1 Apparatus and method for controlling an electric assist steering system
08/16/2000CN1055579C Current command type PWM (pulse width modulation) inverter apparatus
08/15/2000US6104177 Three-phase power controller with interrupt-controlled phase-gating control
08/15/2000US6104159 Field weakening control method in induction motor
08/15/2000US6104149 Circuit and method for improving short-circuit capability of IGBTs
08/10/2000WO2000046912A2 Cross coupled motor gate drive
08/10/2000DE19946050A1 Revolution rate regulation for switched reluctance motors involves PWM operation and switching static converter transistor during set period if motor in or close to stable state
08/10/2000CA2326435A1 Cross coupled motor gate drive
08/09/2000EP1026562A2 Servo controller
08/09/2000CN1262553A Speed controlling method for switch reluctance motor
08/08/2000US6101109 Static power converter multilevel phase driver containing power semiconductors and additional power semiconductor to attenuate ripple voltage
07/2000
07/27/2000DE19902227A1 Verfahren und Vorrichtung zum Betreiben eines Elektromotors eines Dokumentenvernichters Method and apparatus for operating an electric motor of a document shredder
07/26/2000EP1022845A2 Method and device for controling an electric motor of a document shredder
07/25/2000US6094364 Direct torque control inverter arrangement
07/19/2000EP1020021A1 Motor control apparatus
07/19/2000EP1020020A1 Method for the starting and steady-state supply of a permanent-magnet synchronous motor particularly for driving a hydraulic pump
07/18/2000US6091218 Energy conservation circuit and method for use with multi-phase motors used to power a variable load
07/12/2000EP1018212A1 Direct torque control inverter arrangement
07/11/2000US6088246 Method of and device for controlling pulse width modulation inverter
07/06/2000WO2000039917A2 Prime mover for operating an electric motor
07/06/2000DE19935713A1 Signal compensation method involves using compensation factor determined by standard voltage, input voltage, input current and estimated output current of electronic device
07/06/2000CA2358033A1 Prime mover for operating an electric motor
07/05/2000EP1017161A2 Arrangement in a control circuit to drive the motor of an auxiliary drive in a vehicle
07/04/2000US6084377 Voltage vector overmodulation technique considering counter electromotive force of motor
06/2000
06/28/2000EP1014558A1 Method for estimating induced electromotive force and speed of induction motor, method for correcting misalignment of shaft thereof, and induction motor controller
06/28/2000CN1258128A Reduction operation for multi-winding induction motor after fault of converter
06/27/2000US6081093 Sensorless control method and apparatus of permanent magnet synchronous motor
06/22/2000WO2000036741A1 Method and device for controlling deceleration in an induction machine
06/22/2000CA2354407A1 Method and device for controlling the run-down of an induction machine
06/21/2000DE19857695A1 Verfahren und Einrichtung zur Steuerung des Auslaufes einer Induktionsmaschine Method and apparatus for controlling the run-down of an induction machine
06/20/2000US6078161 Current control apparatus in a switched reluctance motor
06/15/2000WO2000035072A1 Motor drive circuit
06/14/2000EP1009096A2 Method and arrangement for a high voltage single-stage variable speed drive
06/13/2000US6075338 Driving of a three-phase motor with fuzzy logic control of the slip
06/07/2000CN1053300C Digital pulse width modulator with integrated test and control
06/06/2000US6072288 Control apparatus for permanent magnet electric motor used in electric motor vehicle in which a predetermined magnetic pole location signal pulse is supplied upon starting
06/06/2000US6072287 Polyphase AC machine controller
05/2000
05/31/2000EP1005148A2 Method and apparatus for controlling a motor in a mass storage device
05/31/2000DE19951762A1 Permanent magnet type synchronous motor has north and south pole permanent magnets in core portion of rotor made of soft magnetic material
05/31/2000DE19934749A1 Drive system for a roll stand in a rolling mill comprises a rotary current motor with open windings
05/30/2000US6069808 Symmetrical space vector PWM DC-AC converter controller
05/25/2000WO2000030243A2 A system and a method for protecting an electric motor and its control circuit and an electric motor
05/24/2000CN1052834C Controlling system for permanent-magnet synchronous electric motor
05/24/2000CN1052831C Method and equipment for controlling converter
05/24/2000CN1052822C Method and apparatus for protecting switching element of inverter from being overheated
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