The Position Tracking Control System of Induction Motors Based on Stator-Flux-Oriented Vector Control

Asynchronous motor is a common motor in electric vehicle. In this paper, the position tracking control system based on stator flux oriented vector control (SFOVC) combining advantages of rotor flux oriented vector control and direct torque control is studied. A continuous closed-loop controller is adopted to correct the calculated position angle of stator flux and the torque ripple is small. This method is less affected by the parametric variation of rotor, with accurate stator flux observation and high position tracking accuracy. Simulation results demonstrate the effectiveness of this new control strategy.