Real time self tuning controller for induction motor based on pole assignment method

In this paper, a self-tuning speed control of induction motor drives is presented using pole placement method combined with recursive least squares parameter estimation method to regulate the induction motor speed under load variation. To obtain good tracking and control characteristics, a pole placement self-tuning controller is adopted and design procedure is developed for systematically finding its parameters according to recursive least square method. The performance of the self-tuning pole assignment controller depends a great deal on the specification of the tailoring polynomial. Thus the poles of the tailoring polynomial should be chosen carefully.