Finite element analysis of healthy and faulty permanent magnet synchronous motors used in hybrid vehicles

Precise simulation of permanent magnet synchronous motors (PMSM) is the most important part in many cases particularly in their fault diagnosis and optimal control. This paper introduces different simulation methods of PMSM where finite elements method (FEM) is chosen as computation tools. The logic and problem solving is investigated and positive and negative points are described. Then, the trend of simulation using FEM is explained and a PMSM used in hybrid vehicles is simulated under healthy and faulty conditions and the results are discussed. Finally, short circuit fault in a PMSM is diagnosed using the stator phase currents.