Robust control for induction servo motor drive

This study addresses the design and properties of a robust control system for an induction servo motor drive to track periodic commands. The presentation of robust control for the indirect field-oriented induction servo motor drive system is divided into three parts, which comprise state feedback controller, feedforward controller and disturbance controller. The adaptation laws of control gains in the robust control system are derived in the sense of Lyapunov stability theorem. In the whole design process, the prior knowledge of the controlled plant is not necessary and the asymptotic stability of the control system can be guaranteed. It not only has the learning ability similar to intelligent control, but also its control framework is simple than intelligent control. With the proposed robust control system, the controlled induction servo motor drive possesses the advantages of good tracking control performance and robustness to uncertainties. The effectiveness of the proposed control scheme is verified by both the simulated and experimental results.