Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284)
09/2003
09/09/2003US6617819 Method of controlling preheating power and mechanism for providing preheating
09/04/2003WO2003073598A1 Polyphase induction electrical rotating machine
09/03/2003EP1341296A2 Generating scalable periodic signals
09/03/2003EP1340645A2 Power output apparatus to drive a shaft and method of controlling the same
09/03/2003CN1440118A Electric motor driver and driving method
09/02/2003US6614202 PWM motor drive apparatus with increase of low speed capability
08/2003
08/28/2003WO2003071670A1 Drive wave form synchronization for induction motors
08/28/2003US20030160583 System and method for estimating rotor position of a permanent magnet motor
08/27/2003EP1339160A1 Current controlling method and apparatus for electric rotating machine
08/27/2003EP1338084A1 Power conversion device
08/26/2003US6611124 Control apparatus of induction motor
08/21/2003US20030155880 Motor driving device and motor driving method
08/21/2003US20030155878 Motor control apparatus and motor control method
08/21/2003US20030155876 Current controlling method and apparatus for electric rotating machine
08/19/2003US6608456 Motor control apparatus
08/13/2003EP1334552A2 Method and apparatus for encoderless operation of a permanent magnet synchronous motor in an elevator
08/13/2003EP1334549A1 High phase order motor with mesh connected windings
08/13/2003CN1436395A Power outputting device and vehicle mounting it, control method, storing medium and program for power outputting device, drive device and vehicle mounting it, and control method
08/12/2003US6605917 Method and a device for controlling and regulating an alternating current rotating electrical machine, in particular a synchronous alternating current rotating electrical machine
08/07/2003WO2003065564A1 Method and device for controlling photovoltaic inverter, and feed water device
08/07/2003US20030146723 Method for controlling torque in a rotational sensorless induction motor control system with speed and rotor flux estimation
08/07/2003US20030146722 Method for operating asynchronous motors and corresponding device
08/06/2003EP1333573A2 Stepping motor driver using vector control
07/2003
07/30/2003CN1433139A Low-speed pulsating current supressing device and method for single phase inverter
07/30/2003CN1433123A Permanent synchronous motor driving system and its test method
07/24/2003US20030137272 Stepping motor driver
07/23/2003EP1330019A2 Permanent magnet synchronous motor driving system, and method of testing this driving system
07/23/2003CN1431138A Long Narrow object transportion appts.
07/22/2003US6598008 Method of estimating speed of induction motor and magnetic flux of rotor
07/17/2003US20030133314 Apparatus and method of suppressing low speed ripple current of a single-phase inverter
07/17/2003US20030132727 Permanent magnet synchronous motor driving system, and method of testing permanent magnet synchronous motor driving system
07/15/2003US6594162 Inverter device
07/15/2003US6593781 Power semiconductor device
07/15/2003US6593751 Motor insulation fault detection by sensing ground leak current
07/15/2003US6593714 Motor control apparatus with a current sensor diagnostic apparatus and a current sensor diagnostic method
07/10/2003WO2003056694A1 Electrical load apparatus, electrical load control method, and computer-readable record medium with recorded program for enabling computer to control electrical load
07/10/2003US20030128009 Motor control apparatus and method
07/10/2003US20030127289 Method for sensorless drive control of an electric vehicle and drive control operating by the method
07/08/2003US6590793 Electric power supplying apparatus using unstable electric power supply and control method therefor
07/03/2003WO2003055055A1 Inverter
07/03/2003US20030124919 Ship propulsion system comprising a control that is adapted with regard to dynamics
07/01/2003US6586905 Automatic sensing of bypassing of soft starter or controller
06/2003
06/26/2003US20030117753 Inverter protecting apparatus
06/25/2003EP1320924A1 Drive control for an electric drive with a secure electrical separation of power element and control element
06/19/2003WO2003050341A1 Inverter of washing machine and inverter of washing machine/dryer
06/19/2003US20030112040 Power semiconductor device
06/18/2003DE10151227C1 Circuit for controlling water supply systems, especially domestic or similar local systems, has controller controlling electrical power fed to alternating current motor via rising edge controller
06/17/2003US6580247 Motor control device
06/13/2003CA2364863A1 Inverter
06/12/2003US20030107344 Motor drive circuit
06/12/2003US20030107343 Voltage-controlled starting relay for induction motor
06/12/2003US20030107339 Electric power steering apparatus
06/11/2003EP1317371A1 Method and apparatus for torque control of a machine
06/10/2003US6577096 Sensorless vector control system of induction motor and method thereof
06/10/2003US6577087 Multilevel DC link inverter
06/05/2003US20030102884 Motor controller
06/05/2003US20030102746 Magnetic bearing controller
06/04/2003CN1421992A Tri-phase induction motor driving system and driving method thereof
06/04/2003CN1421991A Start relay for voltage control of induction motor
06/04/2003CN1421653A Idle time compensating method for compressor of air conditioner
06/03/2003US6573849 Semiconductor device having a plurality of AD converters for inverter control of a motor and method thereof
05/2003
05/30/2003WO2003044939A1 Frequency converter for different mains voltages
05/29/2003US20030098298 Method of controlling preheating power and mechanism for providing preheating
05/28/2003EP1315298A1 System and method for driving three-phase induction motor
05/28/2003EP1315279A2 Voltage-controlled starting relay for induction motor
05/28/2003EP1314239A2 Filter-switched drive operating mode control
05/27/2003US6570778 Adjustable speed drive for single-phase induction motors
05/27/2003US6570358 Control apparatus for alternating-current motor
05/22/2003WO2003043172A1 Rotor angle estimation for permanent magnet synchronous motor drive
05/22/2003WO2003043167A1 Electric motor drive
05/22/2003US20030094919 Inverter control apparatus and motor driving system
05/21/2003EP1313208A2 Motor control apparatus and motor control method
05/21/2003EP1312932A1 Method for measuring motor constant of induction motor
05/21/2003EP0852425B1 Power converter and power converting method
05/15/2003WO2003041260A1 Current ripple reduction by harmonic current regulation
05/15/2003US20030090262 Rotor angle estimation for permanent magnet synchronous motor drive
05/15/2003US20030090232 Current ripple reduction by harmonic current regulation
05/15/2003US20030090231 Motor control apparatus and motor control method
05/14/2003EP1311060A2 Electric car controller and control method
05/14/2003EP1310203A2 Vacuum cleaner reconfigurable between at least two positions
05/14/2003CN1417939A Motor controller and product with the controller
05/14/2003CN1417936A Controller for multiple wound motor
05/14/2003CN1108492C Air conditioner automatically controlling operation based on supply voltage or supply frequency
05/13/2003US6563283 Motor control device
05/08/2003US20030085683 Controller for multiplex winding motor
05/08/2003US20030085678 Electric car controller and control method
05/07/2003CN1416614A PWM cycloconverter and power fault detctor
05/07/2003CN1107847C Method for compensating dead time of compressor in air conditioner
05/07/2003CN1107758C Electrical washing machine
05/02/2003EP1306967A1 Inverter device and current limiting method therefor
05/02/2003EP1306964A1 Control method for an AC-AC matrix converter
05/01/2003US20030079485 Temperature control device of liquid cooling device
04/2003
04/29/2003US6556458 Inverter device with improved current detector
04/29/2003US6555988 Motor control device
04/24/2003US20030075998 Mesh connected electrical rotating machine with span changing
04/23/2003EP1018212B1 Direct torque control inverter arrangement
04/23/2003CN1106708C Circuit device for powering electric motor
04/23/2003CN1106707C Induction motor system and electric locomotive using d.c. voltage bus power-supply, and its control method
04/22/2003USRE38082 High frequency pulse transformer for an IGBT gate drive
04/22/2003US6552625 Processor with pulse width modulation generator with fault input prioritization