DSP full implementation of second order sliding mode control to drive a SPIM

In this paper, the design and the real time implementation of a novel non linear control algorithm to drive a Single Phase Induction Motor (SPIM) are presented. The control schema is based on the field oriented control strategy and requires the development of three controllers. A super twisting algorithm (STA) associated with a partial feedback linearization is applied to control the currents of both main and auxiliary windings. The speed SPIM is driven via a first order proportional sliding mode controller. The stability is demonstrated using the Lyapunov approach and robustness is investigated under load conditions. To illustrate the effectiveness of the proposed controllers, experimental setup is developed and tests were carried out.