| Patents for H02P 21 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation (7,114) |
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| 03/22/2001 | WO2001020751A2 Brushless machines using optimal phase angle control |
| 03/20/2001 | CA2236964C Synchronous machine simulator and synchronous machine simulation method |
| 03/15/2001 | DE19942205A1 Steuerverfahren für einen Umrichter zur feldorientierten Regelung eines Elektromotors und Umrichter Control method for a converter for field-oriented control of an electric motor and inverter |
| 03/14/2001 | CN1287709A Control device of induction motor |
| 03/07/2001 | EP1081845A2 Converter and converter control method for field-oriented motor control |
| 03/01/2001 | WO2001015311A1 Synchronous motor control device and method |
| 02/28/2001 | CN1285652A Method for braking vector controlled induction motor, controller and storage medium |
| 02/27/2001 | US6194865 Control method and system for electric rotary machine |
| 02/27/2001 | US6194864 Control device for induction motor |
| 02/21/2001 | EP1077527A1 Method of braking a vector controlled induction machine, control device for carrying out the method and storage medium |
| 02/15/2001 | DE19936228A1 Steuerverfahren zum Erzeugen eines Spannungszeigers und Steueranordnung für einen Umrichter A control method for generating a voltage vector and control arrangement for an inverter |
| 02/14/2001 | CN1284213A Appts for controlling synchronous motor |
| 02/13/2001 | US6188196 Electrical angle detecting apparatus and method, and motor control apparatus |
| 02/13/2001 | CA2044075C Slip control based on sensing voltage fed to an induction motor |
| 02/08/2001 | WO2001010009A1 Method and apparatus for initialization and operation of field-commutated motors and machines incorporating field-commutated motors |
| 02/07/2001 | EP1075078A2 Control method for generation of voltage vector and control system for an inverter |
| 02/06/2001 | US6184648 Motor control apparatus |
| 02/06/2001 | US6184647 Method of estimating initial pole position of permanent magnet brushless motor |
| 02/06/2001 | US6184638 Control system for an induction motor |
| 01/31/2001 | EP1073193A2 System and method of control for sensorless induction motor drives |
| 01/31/2001 | EP1071982A1 Apparatus and method for controlling an electric assist steering system |
| 01/24/2001 | EP0937331B1 Method and device for determining the rotational speed of a polyphase machine operating with field orientation and without a sensor |
| 01/24/2001 | EP0847617B1 Process and device for correcting the flow direction of the model flow of a sensor-free, field-oriented rotating magnetic field machine down to zero frequency |
| 01/24/2001 | EP0836765B1 Sensorless field-orientation control of an induction motor |
| 01/11/2001 | DE19725136C2 Verfahren und Vorrichtung zur Stromregelung einer feldorientiert betriebenen, permanenterregten Synchronmaschine mit trapezförmiger EMK Method and apparatus for power control of a field-oriented, permanent-magnet synchronous machine with trapezoidal back EMF |
| 01/10/2001 | EP1066674A1 Dual stator winding induction machine drive |
| 01/09/2001 | CA2133150C Hydraulic operational system for an injection molding machine |
| 01/04/2001 | WO2001001559A1 Method for torque control of an induction motor using a voltage controller |
| 01/04/2001 | DE19919752C1 Verfahren zum Zuschalten eines Umrichters an einen Asynchronmotor Method for connecting a converter to an asynchronous motor |
| 01/03/2001 | EP1064718A1 Method of correcting flux midpoint influx-controlled alternating current systems |
| 01/02/2001 | CA2062319C Synchronous motor with permanent magnets |
| 12/28/2000 | DE19928481A1 Simplified, field-oriented regulation of asynchronous machines involves computing main field voltage on basis of demand parameters for flux- and torque-generating currents |
| 12/27/2000 | EP1063765A1 Induction motor control system with speed and flux estimation |
| 12/26/2000 | US6166928 Method for open-loop and closed-loop control of an electrical drive as well as an apparatus for carrying out the method |
| 12/26/2000 | US6166514 Apparatus and method for controlling induction motor |
| 12/26/2000 | US6163912 Washing machine |
| 12/20/2000 | EP1060560A1 Motor conroller |
| 12/19/2000 | US6163130 Injection molding machine |
| 12/12/2000 | US6158553 Curtailed operation of multiple-wound induction motor following inverter failure |
| 12/07/2000 | WO2000074228A1 Speed control method for synchronous motor and constant identifying method |
| 11/30/2000 | WO2000072437A1 Starting procedure of open-loop vector control in synchronous machine |
| 11/30/2000 | CA2371973A1 Starting procedure of open-loop vector control in synchronous machine |
| 11/29/2000 | CN1274987A Variable-speed control device used with induction motor together |
| 11/15/2000 | EP1051801A1 Method for regulating a three-phase machine without a mechanical rotary transducer |
| 11/14/2000 | US6147470 Device for controlling induction motor and method of controlling the same |
| 11/02/2000 | EP1049245A1 Method of controlling an induction motor |
| 11/02/2000 | EP1049243A2 Method for connecting an coverter to an induction motor and inverter with electronic control |
| 11/01/2000 | CN1271658A Controller for electric railway train |
| 10/24/2000 | US6137258 System for speed-sensorless control of an induction machine |
| 10/19/2000 | DE19916774A1 Asynchronous machine controlling method for driving hoisting gear, involves controlling actual torque by adjusting rotating field frequency to preset value or by changing supply voltage |
| 10/18/2000 | EP1045514A1 Process for controlling a rotating machine and power supply for such a machine |
| 10/10/2000 | CA2156903C A method for determining a stator flux estimate for an asynchronous machine |
| 10/10/2000 | CA2141315C A method of determining a residual flux of an inverter-supplied squirrel cage induction machine |
| 10/05/2000 | DE10012280A1 Control system e.g. for induction motor driver, has reference point adjuster which adjusts point at arbitrary position on stator current vector surface plane |
| 10/04/2000 | CN1269065A Method for estimating induced electromotive force and speed of induction motor, method for correcting misalignment of shaft threof, and induction motor controller |
| 09/28/2000 | DE19913624A1 Verfahren und Vorrichtung zur Vermeidung eines stationären Betriebes einer drehgeberlosen, feldorientiert betriebenen Drehfeldmaschine innerhalb eines unzulässigen Statorfrequenzbereiches Method and apparatus for avoiding a steady-state operation of a rotating sensor-less, field-oriented induction machine within an impermissible Statorfrequenzbereiches |
| 09/27/2000 | EP1039626A2 Method and device for avoiding the stationary operation within a forbidden range of stator frequences of a field-orientated driven turning-field motor without a mechanical rotary transducer |
| 09/27/2000 | EP1038348A2 Method for controlling a permanent magnet synchronous motor |
| 09/27/2000 | CN1267954A Induction motor driver and its parameter estimation method |
| 09/26/2000 | US6124697 AC inverter drive |
| 09/21/2000 | DE19910609A1 Verfahren und Vorrichtung zur Adaption des Systemparameters Rotorwiderstand einer drehgeberlosen, feldorientiert betriebenen Drehfeldmaschine Method and apparatus for adapting the system parameter rotor resistance of a rotating sensor-less, field-oriented induction machine |
| 09/21/2000 | DE19910608A1 Verfahren und Vorrichtung zur Bestimmung einer Drehzahl bei betragsmäßig kleinen Statorfrequenzen einer drehgeberlosen, feldorientiert betriebenen Drehfeldmaschine Method and apparatus for determining a speed in terms of amount small stator frequencies of a rotating sensor-less, field-oriented induction machine |
| 09/20/2000 | EP1037378A2 Method and device for adaptation of the system parameter rotor-resistance of a field-orientated driven turning-field motor without a mechanical rotary transducer |
| 09/20/2000 | EP1037377A2 Method and device for determining the rotational speed of field-orientated driven turning-field motor without a mechanical rotary transducer whilst having a low stator frequency |
| 09/20/2000 | EP1037376A2 Polyphase AC machine controller |
| 09/20/2000 | CN1267405A Method for inferring initial pole position of permanent magnet brushless motor |
| 09/20/2000 | CN1267129A Controller for multiphase AC motors |
| 09/19/2000 | US6121748 Method and apparatus for controlling an induction motor |
| 09/13/2000 | EP1035645A1 Control device of induction motor |
| 09/13/2000 | CN1056486C Process and device for correcting the flow direction of the model flow of a sensor-free, field-oriented rotating magnetic field machine down to zero frequency |
| 09/06/2000 | CN1265784A Power converter |
| 08/29/2000 | US6111386 Method for controlling an asynchronous machine |
| 08/24/2000 | WO2000049709A1 Stator flux estimate midpoint correction |
| 08/24/2000 | WO2000049708A1 Method for controlling an electrical machine and an inverter |
| 08/22/2000 | US6107774 Apparatus and method for controlling drive of three-phase multiplex winding motor |
| 08/17/2000 | WO2000048047A1 Apparatus and method for controlling an electric assist steering system |
| 08/15/2000 | US6104159 Field weakening control method in induction motor |
| 08/09/2000 | EP1026562A2 Servo controller |
| 07/11/2000 | US6087801 Process for controlling a rotating machine, a servocontrol system for implementing said method and a rotating machine provided with a system of this kind |
| 07/04/2000 | US6084377 Voltage vector overmodulation technique considering counter electromotive force of motor |
| 06/28/2000 | EP1014558A1 Method for estimating induced electromotive force and speed of induction motor, method for correcting misalignment of shaft thereof, and induction motor controller |
| 06/28/2000 | CN1258128A Reduction operation for multi-winding induction motor after fault of converter |
| 06/27/2000 | US6081093 Sensorless control method and apparatus of permanent magnet synchronous motor |
| 06/27/2000 | US6081087 Motor control apparatus |
| 06/13/2000 | US6075337 Speed control apparatus for induction motor |
| 06/07/2000 | CN1255434A Driving method for driven object, and driving device and printer of using same |
| 06/06/2000 | US6072287 Polyphase AC machine controller |
| 05/31/2000 | DE19951762A1 Permanent magnet type synchronous motor has north and south pole permanent magnets in core portion of rotor made of soft magnetic material |
| 05/30/2000 | US6069467 Sensorless rotor tracking of induction machines with asymmetrical rotor resistance |
| 05/24/2000 | CN1052834C Controlling system for permanent-magnet synchronous electric motor |
| 05/24/2000 | CN1052831C Method and equipment for controlling converter |
| 05/23/2000 | US6066934 Induction motor controller |
| 05/11/2000 | WO2000027024A1 Apparatus for controlling synchronous motor |
| 05/09/2000 | US6061498 Electric motor control system |
| 05/09/2000 | US6060860 Control apparatus for variably controlling speed induction motor |
| 05/04/2000 | WO2000025418A1 System for speed-sensorless control of an induction machine |
| 05/04/2000 | CA2315396A1 System for speed-sensorless control of an induction machine |
| 05/02/2000 | US6056782 Synchronous machine simulator and synchronous machine simulation method |
| 04/19/2000 | CN1051660C Method and apparatus for control of rotary magnet type polyphase synchronous motor |
| 04/18/2000 | US6051946 Electrical angle detection apparatus, method of detecting electrical angle, and motor control apparatus |