SLIDING MODE CONTROL WITH DIFFERENT SLIDING SURFACES A COMPARISON ON SPEED CONTROL OF INDUCTION MOTOR

Abstract

In this paper closed loop speed control of vector controlled Induction motor is described. Sliding Mode Controller (SMC) is used to get the better performance for the closed loop system in the presence of uncertainties and load disturbances. A comparative study is done on Sliding Mode Controller with different sliding surfaces. The sliding surfaces are designed based on PI and PID controllers. The simulation of the closed loop system is done using MATLAB / Simulink and the results are compared. The simulation results verify that the performance of PID based sliding surface is superior compared to that of PI based sliding surfaces.