Time-rotating switching surface for robust position control of a Six Phase Induction Machine

This paper deals with a new variable structure position control law for a Six Phase Induction Machine (6PIM) that is based on time-rotating switching surface. This algorithm guarantees the existence of sliding mode since the beginning of the shaft motion. Indeed, the surface is initially designed to pass through the initial representative point and subsequently moved towards a predetermined desired surface via rotating. By this mean, the reaching phase is eliminated and the motor behavior is insensitive to unknown mechanical configuration changes.