| 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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| 06/01/2005 | EP1536551A1 Servo control device gain adjustment method |
| 06/01/2005 | EP1536548A1 Voltage conversion device, voltage conversion method, and computer-readable recording medium containing program for causing computer to execute voltage conversion control |
| 06/01/2005 | CN1623273A Control constant adjusting apparatus |
| 06/01/2005 | CN1204409C Induction motor overload detector and overload detecting method |
| 05/31/2005 | US6900607 Combined feedforward and feedback parameter estimation for electric machines |
| 05/26/2005 | WO2005048446A1 Braking method for a synchronous machine |
| 05/26/2005 | WO2004106143A9 Controller for electric power steering device |
| 05/25/2005 | EP1533890A1 Motor control device |
| 05/25/2005 | CN1203607C Conversion equipment for controlling AC motor |
| 05/24/2005 | US6897633 Stepping motor driver |
| 05/19/2005 | US20050104550 Synchronous motor and a rotation control method thereof, as well as, an inverter for use of the synchronous motor |
| 05/18/2005 | CN1202386C Cotrol method and device for reciprocating electrical compressor |
| 05/10/2005 | US6891737 Inverter device for AC motor control |
| 05/06/2005 | WO2005041397A1 Method for estimating dc motor coil temperature, dc motor control method and their devices |
| 04/28/2005 | WO2005039035A2 Ac motor control method and control device |
| 04/27/2005 | CN1199346C Engine driven electric generator and load side starting method |
| 04/26/2005 | US6885171 Compensation of reactive power via a frequency converter |
| 04/21/2005 | US20050083035 Measurement of energy by means of a frequency converter |
| 04/21/2005 | US20050083009 Method and arrangement in connection with slip-ring machine |
| 04/14/2005 | WO2005034335A1 Motor operation control device |
| 04/14/2005 | WO2005034328A2 Speed control of an induction motor based on slip and power factor estimation |
| 04/14/2005 | US20050077853 Method and system for controlling motor torque |
| 04/14/2005 | US20050077845 Actively controlled harmonic force generator |
| 04/14/2005 | DE10341511A1 Verfahren und Schaltungsanordnung für die sensorlose Ermittlung von Lastzuständen von synchronen Linearmotoren Method and circuit for sensorless determination of load conditions of synchronous linear motors |
| 04/13/2005 | EP1523089A2 Method for driving induction motor |
| 04/13/2005 | CN1606230A Method for driving induction motor |
| 04/07/2005 | WO2005031963A1 Method and device for controlling the operation of an ac motor |
| 04/07/2005 | US20050073272 Method and system for managing processor execution time utilizing variable frequency switching |
| 04/06/2005 | EP1521356A2 Control of parallel operation of frequency converters or inverters |
| 04/06/2005 | EP1521089A2 System and method of measuring electric energy in an electric motor drive |
| 03/31/2005 | US20050071095 Motor parameter estimation method and apparatus |
| 03/31/2005 | US20050067992 System and method for establishing motor efficiency during balanced or unbalanced operating conditions |
| 03/31/2005 | US20050067991 System and method for identifying operational parameters of a motor |
| 03/31/2005 | US20050067984 Control of parallel operation of frequency converters or inverters |
| 03/30/2005 | EP1519478A2 Sawing machine and method for its drive control |
| 03/30/2005 | EP1519046A2 Apparatus for compensating for speed error of motor |
| 03/30/2005 | EP1518317A1 Drive circuit for an electric motor |
| 03/29/2005 | US6873132 Electric motor control device |
| 03/24/2005 | WO2004066482A3 Electric motor controller |
| 03/24/2005 | US20050062448 Apparatus for compensating for speed error of motor |
| 03/24/2005 | US20050061122 Sawing machine and a method for controlling the drive of a sawing machine |
| 03/24/2005 | DE102004039385A1 Motorantriebs-Regeleinrichtung Motor drive control device |
| 03/23/2005 | EP1516425A1 Brushless motor control utilizing independent phase parameters |
| 03/23/2005 | EP0845854B1 Mechanical vibration detector and vibration damping controller |
| 03/23/2005 | CN1599232A Apparatus for compensating for speed error of motor |
| 03/17/2005 | WO2005025049A1 Controller of rotating machine |
| 03/17/2005 | WO2005025046A1 Method and circuit arrangement for the sensorless detection of load states of synchronous linear motors |
| 03/17/2005 | WO2005025045A1 Motor controller |
| 03/17/2005 | WO2004109903A8 Control device |
| 03/17/2005 | US20050057205 Method and apparatus for providing optimal acceleration feedback |
| 03/17/2005 | US20050057202 Controller for controlling an electric machine |
| 03/17/2005 | US20050057200 Motor control method and control device |
| 03/16/2005 | EP1261968B1 Direct access storage device (dasd) with a variable spindle rotation speed |
| 03/16/2005 | CN1193495C Linear motor controlled by three-terminal, two-way thyristor switch component and phase-locked loop |
| 03/10/2005 | US20050052080 Adaptive electric car |
| 03/09/2005 | EP1512217A2 System and method for controlling a rotating electromagnetic machine |
| 03/08/2005 | US6864646 Multiple inverter system with low power bus ripples and method therefor |
| 03/03/2005 | US20050046375 Software-based adaptive control system for electric motors and generators |
| 03/03/2005 | US20050045392 In-wheel electric motors |
| 03/01/2005 | US6862538 Induction motor module and motor incorporating same |
| 02/24/2005 | WO2005018086A1 Method for the controlled application of a stator-current target value and a torque target value for a polyphase machine that is supplied by an electronic power converter |
| 02/24/2005 | US20050043873 Current limit for an electric machine |
| 02/24/2005 | DE10334190A1 Antriebsvorrichtung für ein Stellsystem Drive device for a control system |
| 02/23/2005 | CN1586029A 可逆电动机 Reversible motor |
| 02/22/2005 | US6859752 Speed adjustment control method |
| 02/22/2005 | US6859423 Motor drive circuit for a disk drive apparatus |
| 02/17/2005 | US20050034538 Method for determining inertia of an electric motor and load |
| 02/16/2005 | CN1190000C Device and method for controlling supply of current and static capacitance to compressor |
| 02/09/2005 | EP1505717A1 Rotatingly driving device of construction machinery |
| 02/09/2005 | CN1578110A Frequency converter and drive for electric motor |
| 02/09/2005 | CN1578106A Drive arrangement, especially for a lifting mechanism and/or a traveling drive |
| 02/09/2005 | CN1578105A Motor, and motor control method |
| 02/02/2005 | EP1503472A2 Drive apparatus for an actuator system |
| 02/02/2005 | CN1574603A Motor driving apparatus |
| 02/02/2005 | CN1574599A Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewith |
| 01/27/2005 | US20050018459 Frequency converter and drive for electric motor |
| 01/27/2005 | US20050017669 Method for defining quadrature-axis magnetizing inductance of synchronous machine |
| 01/25/2005 | US6847531 System and method for regenerative PWM AC power conversion |
| 01/25/2005 | US6847185 Apparatus for switching windings of AC three-phase motor |
| 01/20/2005 | WO2005006537A1 An electric motor movement controlling method, an electric motor movement controlling system and a compressor. |
| 01/20/2005 | WO2004093302A3 Ac servo driver motor power line disconnection detection method |
| 01/20/2005 | US20050012483 Drive arrangement, especially for a lifting mechanism and/or a traveling drive |
| 01/20/2005 | DE10329157A1 Antriebsanordnung, insbesondere für ein Hubwerk und/oder einen Fahrantrieb Drive arrangement, especially for a hoist and / or a traction drive |
| 01/20/2005 | DE10326328A1 Verfahren und Vorrichtung zum Bremsen einer drehzahlveränderbaren Asynchronmaschine Method and device for braking a variable speed asynchronous machine |
| 01/19/2005 | EP1497912A1 Method and arrangement in connection with slip-ring machine |
| 01/18/2005 | US6844701 Overmodulation systems and methods for induction motor control |
| 01/18/2005 | US6844700 Inverter apparatus |
| 01/18/2005 | US6844698 Device and method for controlling supply of current and static capacitance to compressor |
| 01/13/2005 | US20050007056 Motor, and motor control method |
| 01/12/2005 | EP1496603A2 Motor and motor control method |
| 01/12/2005 | CN1565075A Apparatus for switching windings of AC three-phase motor |
| 01/11/2005 | US6841967 Coil winding number variable type motor and coil winding number varying method for varying cooling and heating capacity of reciprocating compressor |
| 01/11/2005 | US6841730 Constructive arrangement for the starting system of an electric motor |
| 01/05/2005 | EP1494343A2 Frequency converter and drive for electric motor |
| 01/04/2005 | US6839645 Method and apparatus to perform poly-phase instrumentation with single-phase instruments |
| 12/30/2004 | US20040263342 System for monitoring motors |
| 12/30/2004 | DE10324881A1 Schnittstellenschaltung für die Ansteuerung eines elektrischen Verbrauchers und Schaltungsanordnung für die Ansteuerung eines Elektromotors hiermit An interface circuit for controlling an electrical load and circuit arrangement for driving an electric motor therewith |
| 12/30/2004 | DE10323980A1 Motorsteuerung Motor control |
| 12/29/2004 | EP1492221A1 Drive assembly, in particular for a lifting device and/or for a vehicle propulsion |
| 12/29/2004 | CN1558534A Three-phase AC speed transmission motor |