Robust speed tracking control for the induction motor via adaptive fuzzy backstepping

The speed tracking control of induction motors with parameter uncertainties and load torque disturbance is addressed. Fuzzy logic systems are used to approximate the nonlinearities and an adaptive backstepping technique is employed to construct controllers. The proposed adaptive fuzzy controllers guarantee that the tracking error converges to a small neighborhood of the origin and the controllers´ structure is very simple. The simulation results illustrate the effectiveness of the proposed control algorithm.