Stator Fault Analysis of Permanent Magnet Synchronous Motor using Finite Element Method

One of the most common faults experienced by the permanent magnet synchronous motor (PMSM) is stator interturn fault which account for 35-40% of the machine failure. This paper focuses on the stator inter-turn fault analysis in the stator winding of Permanent Magnet Synchronous Motor (PMSM) using Finite Element Method. The analysis is carried out for 12.5% and 25% inter-turn short in stator winding of PMSM. The analytical parameters of the motor which includes torque, winding current, induced voltage, speed and electromagnetic parameters like flux density, flux lines and radial flux density were obtained for the faulty machine and compared with the healthy machine. The simulation is done using the ANSYS Maxwell finite element analysis tool.