Control position of a faulted Six Phase Induction Machine (6PIM) using sliding mode control

The main goal of increasing the number of phases in an induction machine is to ensure its performance in all the operating modes such as normal, disturbed and faulted settings. When the induction machine is working under a faulted mode such as one or more phases are missing, this leads to a high torque oscillations and bad tracking behaviour. Designing a suitable control design such as sliding mode control is a challenge task. This controller, with a suitable transformation of the original model matrix, has the task of reducing the torque oscillations and overcome all fluctuations of the dynamic behaviour of the machine in faulted mode by removing the tracking steady-error. This paper presents the design and the application of the sliding mode controller associated with vector control method for controlling the rotor position shaft of the six phase induction machine (6PIM).