| Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487) |
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| 04/22/2010 | WO2009095397A3 Method for ascertaining a correction value for the angle of the rotor of an electrically commuted reversible synchronous motor |
| 04/22/2010 | US20100097021 Drive apparatus |
| 04/22/2010 | DE102009038155A1 Servomotorsteuergerät The servo motor control unit |
| 04/21/2010 | CN1478319B Phase current detector |
| 04/20/2010 | US7701164 Control of electrical machines |
| 04/20/2010 | US7701156 Electric motor drive control system and control method thereof |
| 04/15/2010 | US20100090637 Motor speed controller |
| 04/15/2010 | DE112007003522T5 Drehstellungs-Detektionsverfahren für einen Wechselstrom-Servomotor und einfacher Kodierer Rotational position detection method for an AC servomotor and easier encoder |
| 04/14/2010 | EP2174410A1 Control arrangement of an electric motor |
| 04/13/2010 | US7696714 Method and apparatus for active noise reduction in fans |
| 04/09/2010 | CA2681106A1 Motor speed controller |
| 04/08/2010 | US20100085006 Control device for induction motor |
| 04/08/2010 | US20100085004 Electric power control system and efficiency optimization process for a polyphase synchronous machine |
| 04/01/2010 | DE19952389B4 Verfahren zur Bestimmung der Parameter und/oder Strom-Weg-Kennlinie eines elektrisch angetriebenen Motorsystems A method for determining the parameters and / or current-travel characteristic curve of an electrically driven motor system |
| 04/01/2010 | DE10346680C5 Verfahren zur Erhöhung der Regeldynamik einer mit einer Antriebswelle eines Direktantriebes angetriebenen Last Method for increasing the control dynamics of a driven with a drive shaft of a direct drive load |
| 04/01/2010 | CA2740401A1 Predictive pulse width modulation for an open delta h-bridge driven high efficiency ironless permanent magnet machine |
| 03/31/2010 | CN201435711Y Self-control energy-saving motor monitoring system |
| 03/24/2010 | CN101682158A System and method for determining stator winding resistance in an AC motor |
| 03/24/2010 | CN101677227A blower motor for hvac systems |
| 03/24/2010 | CN101677226A Blower motor for HVAC systems |
| 03/24/2010 | CN101677225A blower motor for hvac systems |
| 03/18/2010 | WO2009080911A8 Method for calculating, using a computer, a three-phase regulator of a three-phase system having a three-phase model |
| 03/18/2010 | US20100066292 Retarding energy calculator for an electric drive machine |
| 03/18/2010 | US20100066291 Method and module for controlling rotation of a motorized spindle |
| 03/17/2010 | EP2163955A1 State estimation method based on a Kalman filter for capacitive and inductive motor states |
| 03/17/2010 | EP2162981A2 System and method for determining stator winding resistance in an ac motor |
| 03/17/2010 | EP2162980A2 System and method to determine electric motor efficiency nonintrusively |
| 03/17/2010 | CN101674045A Voltage-regulating and energy-saving controller for asynchronous motor |
| 03/16/2010 | US7679310 Method and system for controlling pulse width modulation in a power inverter in electric drives |
| 03/16/2010 | US7679309 Method and system for motor control with delay compensation |
| 03/11/2010 | US20100060228 Blower motor for hvac systems |
| 03/10/2010 | EP2161829A2 Method and system for improving electrical load regeneration management of an aircraft |
| 03/10/2010 | EP2160833A1 Motor driver system and method for protecting motor driver |
| 03/04/2010 | US20100052601 Voltage control and power factor correction in ac induction motors |
| 03/04/2010 | US20100052580 Speed Control Module for Motor |
| 03/03/2010 | CN201418059Y Power-saving protection device of generator |
| 03/03/2010 | CN101662256A Control method of six-phase ten-pole permanent magnet fault-tolerant motor with strong fault-tolerant capability |
| 02/25/2010 | WO2010022245A2 System and method for monitoring power damping compliance of a power generation unit |
| 02/25/2010 | US20100045229 Gain equalization device for motor control |
| 02/24/2010 | CN101656507A Motor control system |
| 02/23/2010 | US7667427 Motor control apparatus |
| 02/23/2010 | US7665319 Fan control device and method |
| 02/18/2010 | US20100042262 Control methods for calibrating motor speed in an air treatment system |
| 02/17/2010 | EP2154779A2 Motor control system |
| 02/17/2010 | CN101651442A Method and system for correcting electrical angle of motor rotor |
| 02/16/2010 | US7663337 Frequency converter, motor, motor drive system and maintenance method for motor drive system |
| 02/16/2010 | US7663335 Single-phase induction motor |
| 02/11/2010 | US20100036510 Electronic motor controller |
| 02/11/2010 | DE102008041080A1 Verfahren und Vorrichtung zum Ermitteln eines Betriebszustandes einer elektrischen Maschine Method and apparatus for determining an operating state of an electrical machine |
| 02/10/2010 | CN201403069Y Torque motor controller |
| 02/10/2010 | CN201403068Y Motor electricity economizer |
| 02/10/2010 | CN201403067Y Water-pump electricity economizer for intelligent fan |
| 02/10/2010 | CN101645690A Method for dynamically adjusting voltage and device thereof |
| 02/09/2010 | US7659688 Method and system for resolver alignment in electric motor system |
| 02/04/2010 | US20100026232 Mitigation of Harmonic Currents and Conservation of Power in Non-Linear Load Systems |
| 02/04/2010 | DE112008000522T5 Bestimmung des von einem Motor gezogenen Durchschnittsstroms Determination of a motor average current drawn |
| 02/04/2010 | DE102008040920A1 Method for controlling electric motor by pulse-width modulated control signals, involves generating control pulse with target-duty cycle and temporally varying pulse width and pulse spacing |
| 02/03/2010 | EP2149980A2 Stray flux processing method and system |
| 02/03/2010 | CN201398173Y Speed measurement control device for asynchronous motor |
| 02/03/2010 | CN101640514A Separately excited motor controller and control method thereof |
| 01/28/2010 | WO2010009984A1 Method and device for determining the rotor temperature of a permanently excited synchronous machine |
| 01/28/2010 | WO2009056421A3 Method and device for detecting the position of the rotor shaft of a permanent magnet synchronous machine |
| 01/28/2010 | US20100019716 Motor controller and electric power tool having the same |
| 01/28/2010 | DE102008034318A1 Anordnung zur Auswertung der Messwerte eines Messwertwandlers Arrangement for evaluating the measured values the feedback transducer |
| 01/27/2010 | EP2148430A1 Method for determining total inertia and unbalanced load in a laundry drum of a washing machine |
| 01/27/2010 | CN201393199Y Screw pump motor straight-pulling device with electromagnetism containment and anti-reversion control |
| 01/27/2010 | CN100586005C Method for controlling a reluctance motor |
| 01/26/2010 | US7652387 Stator controlled induction generators with short-circuited rotor |
| 01/26/2010 | US7650760 Motor controlling device, compressor, air conditioner and refrigerator |
| 01/20/2010 | EP2146426A1 Method for operating a drive device and drive device for implementing the method |
| 01/20/2010 | CN201388183Y Energy saving optimization processor of three-phase asynchronous motor |
| 01/13/2010 | EP2143197A1 Method and device for determining the motor constant of an electric motor |
| 01/13/2010 | CN201383789Y Power generation inhibition device of oil pumping machine |
| 01/12/2010 | US7646164 Method of adjusting parameters of a synchronous motor and variable speed drive using such a method |
| 01/07/2010 | WO2009126288A3 Weighted field oriented motor control |
| 01/07/2010 | DE102008031334A1 Verfahren zur Dämpfung von Resonanzstellen mechanischer Antriebe, vorzugsweise Vorschubantriebe von Werkzeugmaschinen Method for damping resonances mechanical drives, preferably feed drives of machine tools |
| 01/06/2010 | EP2141791A1 Method and device for operating an induction machine |
| 01/06/2010 | CN201378824Y Motor energy savor |
| 01/06/2010 | CN101621275A Electricity-saving control system for motor |
| 01/05/2010 | US7643914 Method for controlling the operation and continuous current mode of a drive assembly for a motor vehicle provided with an internal combustion engine |
| 12/31/2009 | US20090322272 Motor control device |
| 12/31/2009 | DE102009009913A1 Motorpositionsregler Motor position controller |
| 12/30/2009 | CN201374677Y Three-phase digital power saver |
| 12/30/2009 | CN100576699C Duplex winding asynchronous motor |
| 12/23/2009 | CN201368995Y PI type current controller circuit for current loop of AC servo drive |
| 12/23/2009 | CN101608354A Device with at least two rollers or roller groups for a spinning machine |
| 12/23/2009 | CN100574091C Motor vibration suppression method based on reactive current compensation |
| 12/22/2009 | CA2551743C A method for measuring the operating state of synchronous motor by using composite power angle meter |
| 12/16/2009 | EP2133987A2 Double fed synchronous generator motor |
| 12/16/2009 | EP2133505A2 Closing device with a shutter or a folding or rolling blind powered by an electric motor |
| 12/16/2009 | CN101606313A Method for controlling an electric drive |
| 12/09/2009 | CN201360233Y Current sampling temperature compensator |
| 12/09/2009 | CN201358908Y Deceleration or variable speed starter |
| 12/09/2009 | CN100568707C Household economical electric washer with speed-adjuster driven |
| 12/09/2009 | CN100568706C Method for measuring the angular speed of an induction motor |
| 12/03/2009 | DE102008002119A1 Verfahren zur Drehzahlregelung, elektrischer Antrieb und Elektrowerkzeug Method for speed control, electric propulsion and electric tools |
| 12/02/2009 | CN101594115A Energy-saving device and method applied to numerical control system |
| 12/02/2009 | CN100566131C Method for operating a rotating electrical machine and apparatus for carrying out the method |
| 12/02/2009 | CN100566130C An electric motor movement controlling method, an electric motor movement controlling system and a compressor |
| 12/02/2009 | CN100566123C Method and arrangement in connection with slip-ring motor |