Abstract
ABSTRACT A composite adaptive speed controller for an induction motor with input-output linearization is proposed in this paper. The rotor flux is estimated with the simplified rotor flux observer on the rotor reference frame and the input-output linearization theory is used to decouple the motor speed and the rotor flux. Subsequeatly, the composite adaptive algorithm is used as the speed controller of the induction motor with input-output linearization. Some experimental results are provided to demonstrate the effectiveness of the proposed adaptive controller. Good speed tracking and load regulating responses can be obtained by the proposed composite adaptive controller. Moreover, the system can be operated in a wide range of speed and robust to the parameter variations.
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