Robust position control based on chattering free sliding modes for induction motors

Abstract

A robust position controller for induction motors is proposed based on sliding mode theory. Robustness of the controller is very important aspect for especially when it is aimed to track a certain trajectory. In this work, the flux observer and current controller are also based on sliding modes. Whole system is analyzed under rotor and stator time uncertainty, torque variations and external disturbances. The performance of the proposed control scheme is confirmed by simulation results.