| 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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| 06/06/2012 | CN101826835B Intelligent crane rotor speed regulation control device |
| 05/31/2012 | WO2011047971A3 Electronically commutated electrical motor having a calibrated motor torque constant |
| 05/30/2012 | CN202261155U Electric executing mechanism with dynamic force balanced positioning |
| 05/30/2012 | CN202260489U Rectification feedback device for dam crest gantry crane and tailwater gantry crane |
| 05/30/2012 | CN101820246B Servo parameter tuning method and system |
| 05/30/2012 | CN101438490B Operation control device and method of compressor |
| 05/30/2012 | CN101363161B Motor control device for driving sliding frame of flat-knitting machine |
| 05/24/2012 | US20120126741 Low-inductance, high-efficiency induction machine and method of making same |
| 05/23/2012 | EP2456064A1 Control method for doubly-fed electric generator |
| 05/23/2012 | EP2456063A2 Energy distribution recording in a machine with several drives |
| 05/23/2012 | CN202231665U Speed-adjusting circuit of alternating-current motor |
| 05/23/2012 | CN102468802A 伺服马达驱动的反馈切换装置及方法 The servo motor driving apparatus and method for switching a feedback |
| 05/23/2012 | CN102468801A 智能电机控制器 Intelligent Motor Controller |
| 05/22/2012 | US8183816 Method for field-oriented operation to zero speed of an encoder-less asynchronous machine |
| 05/16/2012 | CN102460186A Apparatus and method for determining speed of an induction motor |
| 05/10/2012 | US20120112670 Vacuum cleaner and method for controlling an electric motor |
| 05/10/2012 | DE102011007083A1 Verfahren zum Steuern des Positionierens eines Aktuators mit einem Wellgetriebe A method for controlling the positioning of an actuator with a wave gear |
| 05/09/2012 | CN102449900A Method for operating an induction machine containing a pulse-controlled converter |
| 05/08/2012 | US8174226 Current limit control method of DC motor and related device and circuit |
| 05/08/2012 | US8174222 Methods, systems and apparatus for dynamically controlling an electric motor that drives an oil pump |
| 05/02/2012 | EP2448111A2 Control device for controlling a tubular motor |
| 05/02/2012 | EP2448109A1 Systems, methods and devices for demodulating induction motor instantaneous rotor slot harmonic frequency |
| 05/02/2012 | CN102439843A Rotating field drive comprising an electric machine |
| 05/02/2012 | CN102439842A System and method for determining stator winding resistance in an AC motor using motor drives |
| 05/02/2012 | CN101807877B Control method for matrix frequency converter during supply of DC source |
| 05/01/2012 | US8169181 Induction motor |
| 05/01/2012 | US8169171 Drive apparatus |
| 04/26/2012 | US20120098477 Methods and devices for estimation of induction motor inductance parameters |
| 04/26/2012 | US20120098471 Electrical system and method for controlling an electrical motor |
| 04/26/2012 | DE102010049169A1 Verfahren zur Steuerung einer elektrischen Drehfeldmaschine einer mobilen Arbeitsmaschine Method for controlling a rotary electric machine of a mobile machine |
| 04/26/2012 | DE102010042915A1 Verfahren zum Betrieb eines elektrischen Antriebssystems A method of operating an electric drive system |
| 04/25/2012 | CN202206342U 一种变频伺服器 One kind of frequency server |
| 04/25/2012 | CN101860316B 自适应负载随动控制技术系统 Adaptive Load servo control technology systems |
| 04/24/2012 | US8164292 Motor controller of air conditioner |
| 04/24/2012 | US8164287 Motor drive control apparatus and method |
| 04/19/2012 | US20120091939 High voltage dc electric power generating system with permanent magnet generator protection |
| 04/19/2012 | DE102010048876A1 Landwirtschaftliche Arbeitsmaschine An agricultural implement |
| 04/18/2012 | EP2442437A1 Power converter |
| 04/18/2012 | EP2441167A2 System and method of dynamic regulation of real power to a load |
| 04/17/2012 | US8160743 Anthropomorphic medical robot arm with movement restrictions |
| 04/17/2012 | US8159164 Variable-delay-time control system for a motor |
| 04/12/2012 | US20120086384 Apparatus and method for determining speed of an induction motor |
| 04/12/2012 | US20120086383 Dephasing control |
| 04/12/2012 | US20120086382 motor controller and related method |
| 04/12/2012 | US20120086381 Brushless synchronous machine utilizing third harmonic excitation |
| 04/12/2012 | DE102010047761A1 Arbeitsgerät mit einem elektrischen Antriebsmotor Working device with an electric drive motor |
| 04/11/2012 | EP2438808A1 Work device with an electric drive motor |
| 04/11/2012 | CN202190247U 一种用于etap电动机数据输入装置 A data input device for a motor etap |
| 04/10/2012 | US8154241 In-vehicle electronic control apparatus and steering control system |
| 04/05/2012 | WO2012043264A1 Electric winch elevator device drive circuit fault inspection device |
| 04/05/2012 | WO2012042293A1 Method for controlling an electrical motor |
| 04/05/2012 | US20120081065 Overcurrent limiting for the closed-loop control of converter-fed three-phase machines |
| 04/05/2012 | US20120080259 Motor control device and electric power steering apparatus |
| 04/04/2012 | CN101557194B 电动机驱动装置 The motor driving device |
| 04/04/2012 | CN101552588B 电动机控制装置及电动机控制系统 Motor control device and motor control system |
| 03/29/2012 | WO2012037983A1 Method for controlling an asynchronous machine having a converter in a manner that is optimal for (copper) loss |
| 03/29/2012 | US20120074879 Methods and Apparatuses for Fault Management in Permanent Magnet Synchronous Machines Using the Field Reconstruction Method |
| 03/28/2012 | CN101729017B Control apparatus for induction motor |
| 03/27/2012 | US8143838 Phase current estimation apparatus for motor and magnetic pole position estimation apparatus for motor |
| 03/22/2012 | US20120068654 Configurable multi-axis electric drive system concept |
| 03/21/2012 | EP2432114A1 Flux offset compensation for a rotating electrical machine |
| 03/21/2012 | EP2430506A1 A motor controller and related method |
| 03/21/2012 | EP2430462A1 Apparatus and method for determining speed of an induction motor |
| 03/21/2012 | CN102386840A Motor control method and motor control system of vehicle |
| 03/20/2012 | US8138705 Circuit arrangement and method for controlling an electric load |
| 03/20/2012 | US8138699 Power control system for vehicle disk motor |
| 03/15/2012 | DE102011075605A1 Elektromotor-Statorwicklungs-Temperaturschätzsysteme und -verfahren Electric motor stator winding temperature estimation systems and procedures |
| 03/14/2012 | CN101753073B Compensation system for cogging torque of motor and method thereof |
| 03/13/2012 | US8134323 Bypass and synchronous transfer arrangement for a medium voltage drive control system |
| 03/08/2012 | WO2012028390A2 Control circuit for an electric motor having an electrical power supply control unit |
| 03/08/2012 | US20120056570 System and method for collecting characteristic information of a motor, neural network and method for estimating regions of motor operation from information characterizing the motor, and system and method for controlling motor operation using the characteristic information, the neural network, or both |
| 03/07/2012 | EP2426032A2 Electric power steering system |
| 03/06/2012 | US8129935 Motor control device |
| 03/01/2012 | DE102011075980A1 Verfahren und Systeme für die Induktionsmotor-Steuerung Methods and systems for the induction motor controller |
| 02/29/2012 | EP1695157B8 Electric motor controller for a domestic appliance |
| 02/28/2012 | US8125179 Controlling a power of an electrical motor |
| 02/23/2012 | WO2012022970A2 Measurement circuit |
| 02/23/2012 | WO2009066840A3 Motor controller of air conditioner |
| 02/22/2012 | EP2421148A1 Device and method for identifying mechanical parameters of an alternating current asynchronous motor without using a rotary encoder |
| 02/22/2012 | EP2421147A1 Device and method for identifying equivalent circuit parameters of an alternating current synchronous motor without using a rotary encoder |
| 02/22/2012 | EP2421146A1 Device and method for identifying magnetomechanical parameters of an alternating current synchronous motor without using a rotary encoder |
| 02/22/2012 | EP2421145A1 Apparatus and method for identifying equivalent circuit parameters of an alternating current asynchronous motor without using a rotary encoder |
| 02/22/2012 | EP2419295A1 Drive system for a facility having an alternating-current isolated network |
| 02/22/2012 | CN102361434A Method for expanding power supply frequency of constant voltage frequency conversion asynchronous motor |
| 02/22/2012 | CN102361433A Direct torque control method for harmonic voltage injected multi-phase induction motor |
| 02/22/2012 | CN102361432A Electric actuating mechanism for dynamic force equilibrium positioning |
| 02/22/2012 | CN102361431A Double-speed motor controller and control method thereof |
| 02/16/2012 | US20120037616 Power inverter |
| 02/15/2012 | CN102355193A On-line rotational inertia identification device for alternate current permanent magnet servo system and identification method |
| 02/14/2012 | US8115441 On-line measurement of an induction machine's rotor time constant by small signal d-axis current injection |
| 02/14/2012 | US8115434 High-speed self-cascaded electric machine |
| 02/09/2012 | WO2012018985A2 Method and apparatus for motor control |
| 02/09/2012 | DE102011109803A1 Method for damping torsional vibration in rotary drive train of liquefied natural gas-line used for driving primary moving element at compressors by long shaft, involves applying damping torque with frequency and anti-phase at angular speed |
| 02/08/2012 | EP2415163A1 Synchro drive comprising an electric machine |
| 02/08/2012 | CN101546983B 马达驱动电路 A motor drive circuit |
| 02/02/2012 | US20120026761 Adaptive current limiter and dimmer system including the same |
| 02/01/2012 | CN202135095U 一种电动叉车交流伺服控制系统的电流反馈电路 An electric forklift AC servo control system current feedback circuit |
| 02/01/2012 | CN102342016A Method and device for the angle sensor-free position detection of the rotor shaft of a permanently excited synchronous machine based on current signals and voltage signals |
| 02/01/2012 | CN102337866A Energy-saving control method and system used for oil sucking machine in oil field |
| 01/31/2012 | US8107211 High temperature superconducting electromechanical system with frequency controlled commutation for rotor excitation |