Combined Sliding Mode Control with a Feedback Linearization for Speed Control of Induction Motor

Abstract

Induction Motor (IM) speed control is an area ofresearch that has been in prominence for some time now. In thispaper, a nonlinear controller is presented for IM drives. Thenonlinear controller is designed based on input-output feedbacklinearization control technique, combined with sliding modecontrol (SMC) to obtain a robust, fast and precise control of IMspeed. The input-output feedback linearization controldecouples the flux control from the speed control and makes thesynthesis of linear controllers possible. To validate theperformances of the proposed control scheme, we provided aseries of simulation results and a comparative study between theperformances of the proposed control strategy and those of thefeedback linearization control (FLC) schemes. Simulationresults show that the proposed control strategy scheme showsbetter performance than the FLC strategy in the face of systemparameters variation