Experimental evaluation of sliding mode induction motor control

This paper presents a sliding mode approach for the control and states estimation of an induction motor. Firstly, the field oriented control is briefly reviewed. Secondly, a sliding mode control law is derived to regulate the speed and the rotor flux magnitude and a sliding mode observer which was proposed in [17] is used to estimate the unmeasurable part of the motor states. Finally, experimental results obtained on a digital signal processor (DSP) TMS320C31/40 Mhz based system for a 0.37 KW induction motor are given. The obtained results are compared with those obtained by the field oriented control system.