2004•Unpublished venueRequires access

The vector control based on dynamic speed estimator for induction motor sensorless drive

LI Xin-tian

Abstract

A vector control system based on direct rotor field oriented control for induction motor sensorless drive is intro- duced.Stator and rotor adaptive flux observer and speed dynamic estimator are used to estimate the flux and speed of the rotor and three PI controllers are supposed to control the speed and current of torque and flux,then output the voltage space vector to control the motor.The simulation results demonstrate the good performance for the systemin observation precision,robustness and dynamic and steady aspects.

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Key concepts: Control theory (sociology), Vector control, Induction motor, Stator, Direct torque control, Robustness (evolution), Torque, Observer (physics)