Research of Active Disturbance Rejection Controller in speed regulation of induction motor

In order to overcome the drawbacks of the bad low speed performance of the direct torque control of induction motor. Active Disturbance Rejection Controller ( ADRC ) replaces the classic PID in a speed loop method on the base of the direct torque control of induction motor is proposed. Through the simulation results of different speeds show that the speed modulation performance of ADRC-DTC basically consistent at the high or low speed, to overcome the disadvantage of the low speed performance declined, improve the response speed, and effectively solve the contradictions between quick speed and overshoot.