Position control of six-phase induction motor using fuzzy logic: Application to electric power steering

In this paper, the parameters choice of a fuzzy logic regulator used to control the position of a six-phase induction motor for a car steering is performed. Indeed, with the presence of an electronic stability controller (ESC), the braking on the four wheels is controlled and the correction of the direction to adjust the path of the vehicle is also made. Obviously, the position control should never present on overshoot and should be insensitive to the mechanical loads, and it has to operate in faulted mode as well (when electrical machine phases are missing). In this paper, a fuzzy logic controller applied to a six phase induction machine has been developed to realize an effective position control. Some experimental tests in healthy and faulty (1, 2 and 3 missing phases) modes were performed to check the robustness and the accuracy of this controller. In addition, a study concerning the position errors of each operating case will be presented.