Modelling and FEM Validation of PM Synchronous Machines under Stator Winding inter-turn Fault

In this paper a simple dynamic model for a rotor surface mounted PM motor with inter-turn winding fault is presented using the reference frame theory. Finite element analysis is used for parameter determination of the faulted machine. The proposed model is validated by time stepping FEM analysis. The dynamic model results exhibit the same trend as predicted by FEM analysis for different fault insulation resistances.