A new robust control to improve the dynamic performance of induction motors

A nonlinear auto-disturbance rejection controller (ADRC) has been developed to ensure high dynamic performance in this paper. By using the extended state observer (ESO), ADRC can estimate accurately the derivative signals and accurate decoupling of induction motor is achieved too. In addition, the proposed strategy doesn't require knowledge of induction motor parameters. The simulation and experiment results show that the controller operates quite robustly under modeling uncertainty and external disturbance, and it is concluded that the proposed topology produces better dynamic performance such as small overshoot and fast transient time in the speed control than classical PID controller.

[1]  Guang Feng,et al.  A nonlinear auto-disturbance rejection controller for induction motor , 1998, IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).

[2]  N. Krikelis,et al.  Design of tracking systems subject to actuator saturation and integrator wind-up , 1984 .

[3]  Raymond Hanus,et al.  Anti-windup, bumpless, and conditioned transfer techniques for PID controllers , 1996 .

[4]  Yongdong Li,et al.  Virtual vectors based predictive control of torque and flux of induction motor and speed sensorless drives , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[5]  R.S. Cabrera,et al.  Some results about the control and observation of induction motors , 1995, Proceedings of 1995 American Control Conference - ACC'95.

[6]  C. Cecati,et al.  An adaptive nonlinear control algorithm for induction motors , 1996, Proceedings of the 1996 IEEE IECON. 22nd International Conference on Industrial Electronics, Control, and Instrumentation.