Second order sliding mode induction motor control with a new Lyapunov approach

This paper, deals with the control and observation of an induction motor using second order sliding-mode technique. We present a new Lyapunov function for the stability analysis. This approach guarantees the same robustness and dynamic performance of traditional first-order SMC algorithms, and at the same time, attenuates the chattering phenomenon, which is the main drawback in the actual implementation of this technique. The magnitude of the rotor flux of the induction motor is determined by the output of the closed-loop rotor flux observer based on twisting algorithm control theory. This technique is proposed for the solution of chattering. Simulation results are presented to validate the effectiveness and the good performance of the proposed control technique.