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 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control
Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487)
09/2003
09/25/2003WO2003079535A1 Motor temperature estimator and motor controller
09/25/2003WO2003079533A1 Control constant adjusting apparatus
09/25/2003US20030181999 Closed-loop phase compensation controller
09/17/2003EP1345312A2 Inverter device for ac motor control
09/11/2003US20030169004 Motor controller
09/10/2003EP1342312A1 Rotary machine control
09/04/2003US20030164028 Overmodulation systems and methods for induction motor control
09/03/2003EP1340308A2 Constructive arrangement for the starting system of an electric motor
09/02/2003US6614197 Odd harmonics reduction of phase angle controlled loads
08/2003
08/26/2003US6611125 Method for calculating inertia moment and driver for electric motor
08/12/2003US6605920 Method and apparatus for large motor control
08/12/2003US6605919 Method and apparatus for indirectly measuring induction motor slip to establish speed control
07/2003
07/30/2003CN1116554C Power supply cut-off device of air conditioner
07/24/2003US20030137261 System for sharing power and signal pins on a motor controller
07/23/2003EP1330018A1 Motor controller
07/23/2003CN1432210A Motor controller
07/22/2003US6598008 Method of estimating speed of induction motor and magnetic flux of rotor
07/22/2003US6598007 Digital control loop
07/22/2003US6597148 Method for controlling an electrical machine and an inverter
07/10/2003US20030128003 Methods and apparatus to improve the performance of universal electric motors
07/08/2003US6590358 Servocontrol device
06/2003
06/24/2003US6583682 Method of reducing conducted EMI in motor drive applications
06/05/2003US20030101813 Device for measuring rotor imbalance
05/2003
05/21/2003EP1313207A1 Electric motor control device
05/20/2003US6565327 Circuit for driving linear compressor
05/15/2003US20030090222 Method and apparatus for controlling three-phase power
05/13/2003US6563722 System and method for compensating for line imbalances in line commutated converters
05/08/2003WO2003038987A1 Method for operating a control device
05/07/2003CN1416213A Linear motor controlled by three-terminal, two-way reverse blocking tetrod thyristor component and phase-locked loop
05/06/2003US6559616 Rotational pulse generating circuit for motors
05/06/2003US6559611 Method for starting a load by engine-driven generator and engine-driven generator
05/02/2003EP1306967A1 Inverter device and current limiting method therefor
04/2003
04/24/2003US20030076065 Active temperature estimation for electric machines
04/24/2003US20030076064 Feedforward parameter estimation for electric machines
04/24/2003US20030076061 Combined feedforward and feedback parameter estimation for electric machines
04/23/2003EP1018212B1 Direct torque control inverter arrangement
04/22/2003US6552510 Method for frequency converter
04/17/2003WO2003032482A1 Apparatus for switching windings of ac three-phase motor
04/17/2003US20030071596 Controller for a wound rotor slip ring induction machine
04/17/2003US20030071594 Feedback parameter estimation for electric machines
04/16/2003EP1302659A2 Control method for a windmill
04/16/2003CN1411627A Energy conserving motor controller
04/15/2003US6548984 Power output device
04/09/2003EP1300937A2 Air conditioning device
04/02/2003CN1407712A Rotation rate regulating circuit and method for universal motor
04/01/2003US6542390 System and method for regenerative PWM AC power conversion
03/2003
03/26/2003EP0991484B1 Method and device for reducing or compensating rotational speed losses during insertion of rolling stock in a roll stand
03/25/2003US6538406 System and method for improving transient speed response of electric motors
03/18/2003US6533074 Elevator apparatus with rechargeable power supply and discharge control
03/13/2003WO2003021751A1 Reversible motor
03/11/2003US6531843 Driving system of AC motor
03/06/2003WO2003019765A1 Motor load controller for ac induction motors
03/06/2003US20030044172 Circuit and process for regulating the speed of universal electric motors
03/06/2003US20030043610 Controller of AC machine
03/05/2003EP1289116A2 Circuit and method for controlling the rotational speed of universal motors
03/05/2003CN1400431A Control method and device for reciprocating electrical compressor
02/2003
02/27/2003WO2003017459A1 Electric motor controller resonance frequency detection apparatus
02/26/2003EP1286456A1 Feedback parameter estimation for electric machines
02/26/2003EP1286145A1 Feedforward parameter estimation for electric machines
02/26/2003EP1285841A1 Active temperature estimation for electric machines
02/20/2003US20030034753 Constant torque AC induction motor controller
02/19/2003EP1284541A2 Combined feedforward and feedback parameter estimation for electric machines
02/18/2003US6522099 Elevator apparatus with rechargeable power supply and discharge control
02/18/2003US6520746 Apparatus and method for controlling operation of reciprocating compressor
02/13/2003WO2003012974A1 Method and apparatus for high performance permanent magnet motor speed control with limited position information
02/13/2003US20030030404 Sensorless control system for synchronous motor
02/13/2003US20030030395 Method and apparatus for high performance permanent magnet motor speed control with limited position information
02/12/2003EP1283593A1 Motor controller
02/06/2003US20030026701 Apparatus and method for controlling operation of reciprocating motor compressor
01/2003
01/30/2003US20030020432 Inverter apparatus
01/16/2003WO2003005547A2 Odd harmonics reduction of phase angle controlled loads
01/14/2003CA2134682C Motor driven step switch
01/09/2003US20030009309 Method of estimating speed of induction motor and magnetic flux of rotor
01/08/2003EP1010089B1 A microprocessor-controlled drive unit for electrically operated devices
01/08/2003CN1390381A Device and method for controlling supply of current and static capacitance to compressor
01/08/2003CN1390380A Device and method for controlling supply of current and static capacitance to compressor
01/02/2003US20030002302 Odd harmonics reduction of phase angle controlled loads
01/01/2003CN1097756C Regulating method of rotary machinery and its servo system and rotavy machinery with the same system
12/2002
12/24/2002US6498447 Apparatus and method for controlling an electric machine
12/19/2002WO2002101915A1 Induction motor control system
12/19/2002US20020190686 Method and apparatus to control input to AC induction motors
12/19/2002US20020190685 Induction motor control system
12/19/2002US20020190674 Motor driving device and apparatus including the same device
12/19/2002US20020189906 Elevator apparatus with rechargeable power supply and discharge control
12/18/2002CN1096551C Electrical drawing device with a refined cascade control unit
12/17/2002US6495996 Linear motor control with triac and phase locked loop
12/05/2002WO2002097955A1 Motor driving device and apparatus including the same device
12/05/2002US20020180402 Drive control apparatus and method of alternating current motor
12/05/2002US20020180292 Magnetically levitated motor
12/05/2002US20020179376 Elevator apparatus with rechargeable power supply and discharge control
12/04/2002EP1263125A2 Drive control apparatus and method of alternating current motor
12/04/2002EP1261968A1 Direct access storage device (dasd) with a variable spindle rotation speed
11/2002
11/28/2002WO2002095918A1 Inverter control method and its device
11/13/2002EP1257049A2 Control apparatus for alternating-current source
11/13/2002EP1257042A2 Magnetically levitated motor
11/07/2002US20020163319 Control apparatus for electric motor
11/06/2002EP0964974B1 An operating system for electrically operated devices such as doors, windows and the like, and drive unit for the use in such a system
11/05/2002US6476577 Motor control circuit
11/05/2002CA2199080C Method and apparatus for direct torque control of a three-phase machine
10/2002
10/22/2002US6469470 Motor drive circuit having a resistor circuit for sine wave generation
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