Vector controlled permanent magnet synchronous motor (PMSM) drive with stator turn fault

In order to develop an effective detection method and tolerant strategy, a simulation model which can describe accurately the behavior of a PMSM drive with stator turn faults, is absolutely required. In this paper a dynamic model for permanent magnet synchronous motor with a stator inter-turn winding fault is derived in abc-variables. The model is used in vector control for a PMSM drive for both healthy and faulty conditions. As any method should be fully confirmed with a simulation model before being applied to a real system, the stator turn fault vector control strategy for PMSM drive is implemented in MATLAB/SIMULINK. Simulation results show the limit of validity of the proposed strategy and allow proposing a strategy for diagnosis but also for fault tolerant control development.