Application of Active Disturbance Rejection Control in Direct Torque Control of Induction Motor

Traditional PI controller can′t fulfill speed modulation in large-scale and high precision in speed modulation of induction motor.Active disturbance rejection controller(ADRC) isn′t sensitivity when the parameter of control object change,ADRC controller as a modulation a new closed loop speed system was constituted.The simulation results show that the speed controller based on ADRC has preferable applicability when motor move in different speed,dynamic performance is obvious excellent than traditional PID control in direct torque control of induction motor.