Sensorless Sliding Mode Control of Induction Machine Based On SVPWM

Abstract— In  recent years, sensorless modes of operation are becoming most convenient and standard solutions in the areas of electric drives. This paper explains about sensorless speed control of induction motor with a predictive current controller. The closed loop estimation system with at most robustness against any parameter variations is used for the control approach.  In this paper further a noval scheme implementing Space Vector pulse width modulation is also proposed increasing overall stability.  Here a Space Vector Pulse width modulated VSI is used to feed the IM. The simulation results illustrate the performance of IM on various conditions. The results are then compared with the conventional types verifying this scheme has better performance than the others.