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 21 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
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)
02/1993
02/10/1993EP0526915A2 Control system for controlling revolution speed of electric motor
02/10/1993EP0313671B1 Temperature compensative revolution speed control for an induction motor
02/02/1993US5184056 Method of regulating the torque response of a multiphase electronically commutated electric motor
01/1993
01/27/1993EP0233948B1 Method of controlling a three-phase induction motor
01/26/1993US5182508 Reconfigurable AC induction motor drive for battery-powered vehicle
01/07/1993EP0521183A1 Method and device to determine a current fundamental harmonic space vector from a measured stator current space vector
01/06/1993CN1067632A Apparatus for operating elevators when electricity is ceased
12/1992
12/29/1992US5175483 Method and an apparatus for computing moment of inertia in a motor speed controller, and a speed control method and apparatus for a motor
12/23/1992EP0519100A1 Method and device to limit a physical value, preferably an electrical voltage
12/15/1992US5172041 Method and device for asynchronous electric motor control by magnetic flux regulation
12/08/1992US5170116 Method and device for magnetic flux estimation in an asynchronous electric motor for control thereof by magnetic flux regulation
12/02/1992EP0515469A1 Method and apparatus for controlling an ac induction motor by indirect measurement of the air-gap voltage.
12/01/1992US5168204 Automatic motor torque and flux controller for battery-powered vehicle drive
11/1992
11/24/1992US5166593 Closed-loop torque feedback for a universal field-oriented controller
11/19/1992EP0513994A2 An actuator and a valve actuator system
11/12/1992DE4115338A1 Detecting and/or regulating position or angular velocity of rotor of electrical machine - using Kalman filter to monitor and regulate pulse width modulator of sync. and async. three=phase motors without needing sensors
11/10/1992US5162727 Method and apparatus of determining the stator flux estimate of an electric machine
11/03/1992US5160878 Induction motor controller providing temperature compensation
10/1992
10/29/1992WO1992019038A1 Process and circuits for determining machine-related electromagnetic and mechanical state variables on electrodynamic induction machines supplied via converters
10/27/1992CA1309462C Method and apparatus for determining the rotor resistance of a rotating-field machine
10/13/1992US5155797 Control system for controlling revolution speed of electric motor
10/08/1992DE4110716A1 Asynchronous machine parameters identification - using computer model which derives modelling parameter from measured stator current, voltage and revolution rate to provide input to estimation process
09/1992
09/30/1992EP0505591A1 Method and circuit arrangement for the regulation of a two-dimensional load vector by a digital actuator with limited commutation frequency
09/22/1992US5150029 Method and apparatus for controlling the magnetic flux of an induction motor
09/16/1992EP0503879A2 Synchronous motor with permanent magnets and motor system
09/10/1992DE4107362A1 Surge-free switching-on of inverter to 3 phase asynchronous machine - using current desired value-current actual value comparison across search current regulator
09/03/1992WO1992015148A1 Four quadrant motor controller
09/01/1992US5144564 Rotor position estimation of a permanent magnet synchronous-machine for high performance drive
09/01/1992US5144216 High speed flux feedback for tuning a universal field oriented controller capable of operating in direct and indirect field orientation modes
08/1992
08/20/1992WO1992014298A1 Variable speed wind turbine
08/04/1992US5136228 Induction motor vector control
07/1992
07/07/1992CA1304775C Method and apparatus for the digital determination of the field angle of a rotating-field machine
07/01/1992EP0491881A1 Process for correcting the reference flux of a converter-powered multi-phase machine and circuit for implementing the process.
06/1992
06/17/1992EP0490024A1 Induction motor vector control
06/02/1992US5119007 Inverter control apparatus
05/1992
05/07/1992DE4103270A1 Stator flux evaluation system for rotary electrical machine - uses differential of difference winding inductances within saturation range
04/1992
04/28/1992CA1299642C Universal field-oriented controller
04/07/1992CA1298611C Load commutated inverter (lci) induction motor drive
03/1992
03/25/1992EP0476588A1 A method and apparatus for computing moment of inertia in a motor speed controller, and a speed control method and apparatus for motor
03/24/1992US5099185 Alternating current motor control method
03/18/1992EP0474629A1 Process for compensating a phase and amplitude cycle between a multi-phase actual and set value and circuit for implementing the process.
03/17/1992US5097193 Method and apparatus for direct regulation of output currents of an inverter feeding a predetermined number of induction machines
02/1992
02/05/1992EP0469509A1 Method and device for controlling an asynchronous motor by regulating the magnetic induction flux
02/05/1992EP0469508A1 Method and device for estimating the magnetic reduction flux of an asynchronous motor, especially with a view of the motor control by flux regulation
01/1992
01/29/1992EP0468499A2 Measurement and control device particularly for asynchronous electric motors.
01/21/1992US5083039 Variable speed wind turbine
01/14/1992CA1294319C Current mode motor control circuit
12/1991
12/24/1991US5075612 Method and device for determining the optimal excitation value which minimizes the electromagnetic losses of electric machines
12/18/1991EP0461511A1 Procedure for the regulation of an asynchronous motor
12/04/1991CN1056660A Apparatus for controlling speed of elevator
11/1991
11/28/1991DE4114500A1 DC elimination circuit for regulated AC drive - detects unwanted DC signals to calculate auxiliary stator-orientated setting voltage components for signal elimination
11/26/1991CA1292506C Method and apparatus for induction motor drive
11/19/1991US5066899 Control method of induction motor and device therefor
10/1991
10/15/1991US5057759 Discrete-time AC motor control apparatus
10/01/1991US5053690 Control method of pulse width modulation inverter and pulse width modulation inverter system
09/1991
09/25/1991EP0214301B1 System for controlling torque of induction motor
09/18/1991CN1054571A Apparatus for contrelling elevator speed
09/10/1991US5047704 Motor control apparatus and motor controlling method
09/04/1991EP0444518A2 Regulating system for a pulse inverter controlled rotating field machine
08/1991
08/22/1991WO1991012656A1 Method and apparatus for controlling an ac induction motor by indirect measurement of the air-gap voltage
08/07/1991EP0439990A1 Method and device for determining the optimal exitation value which minimizes the eletromagnetic losses of electric machines
07/1991
07/24/1991EP0437669A1 Method and circuit for the direct control of the current output of an inverter, supplying a predetermined number of rotating field machines
07/16/1991US5032771 Slip control based on sensing voltage fed to an induction motor
07/10/1991EP0436138A1 Induction motor controller providing temperature compensation
06/1991
06/11/1991US5023538 PWM inverter apparatus for controlling rotating magnetic flux in a.c. motors
06/04/1991US5021724 Controlling apparatus for induction motor
05/1991
05/21/1991CA1284349C Flux profile control for startup of an induction motor
04/1991
04/03/1991EP0419761A2 Frequency control based on sensing voltage fed to an induction motor
03/1991
03/26/1991US5003243 Control apparatus for induction machine
03/19/1991US5001411 Method for simulating the actual load angle of a polyphase machine and circuit arrangement for carrying out the method
03/08/1991WO1991003867A1 Process for correcting the reference flux of a converter-powered multi-phase machine and circuit for implementing the process
03/08/1991CA2066697A1 Process for correcting the reference flux of a converter-powered multi-phase machine and circuit for implementing the process
02/1991
02/21/1991DE3926994A1 Flux vector indicator for self-commutated asynchronous machine - uses integration of voltage vector and current vector components
02/20/1991EP0413032A1 Method of controlling ac motor
02/12/1991CA1280155C Voltage-controlled field-oriented induction motor control system
02/06/1991EP0126778B1 Servomotor control system
01/1991
01/29/1991US4988940 Method for the formation of the actual load angle value for a field-oriented regulated rotary field machine and corresponding regulation
01/17/1991DE3922479A1 Parameter adjusting in voltage model actual values - determining amount of magnetising and torque generating components for rated operation
01/15/1991CA1279093C Method and apparatus for controlling a rotating-field machine
01/10/1991DE4019849A1 Induction motor control with prim. current feedback loop - changes current loop gain or velocity loop gain to predetermined value, greater in position adjustment mode
01/09/1991CN1011176B Induction motor control apparatus
12/1990
12/13/1990WO1990015472A1 Process for compensating a phase and amplitude cycle between a multi-phase actual and set value and circuit for implementing the process
12/12/1990EP0401386A1 Method of controlling slip frequency of induction motor
12/11/1990CA1277704C Cross coupled current regulator
12/05/1990CN1010731B Arrangement for controlling induction motor
11/1990
11/28/1990CN1010642B Control arrangement for turning induction motor
11/06/1990US4968925 Universal field-oriented controller
10/1990
10/30/1990US4967135 Induction motor vector control
10/09/1990US4962339 Pole-tying current control apparatus
09/1990
09/18/1990US4958117 Frequency control based on sensing voltage fed to an induction motor
09/18/1990US4958116 Method for controlling AC induction motor
09/11/1990CA1273988A1 Power converter for a.c. load
08/1990
08/29/1990EP0383949A1 Current limiting system for a voltage-type inverter
08/23/1990WO1990009699A1 Method of controlling ac motor
07/1990
07/18/1990EP0377771A1 Torque control method for multiphase electronically commutated electric motors, especially for synchronous motors
07/12/1990WO1990007822A1 Method of controlling slip frequency of induction motor
07/12/1990DE3900539A1 Method and arrangement for determining the magnetic flux of asynchronous machines
06/1990
06/06/1990EP0371442A1 Control method of pulse width modulation inverter and pulse width modulation inverter system
05/1990
05/15/1990US4926105 Method of induction motor control and electric drive realizing this method
04/1990
04/24/1990US4920306 Method for controlling the torque of a synchronous machine supplied by a frequency converter
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