This paper attempts to present a finite element analysis (FEA) and equivalent circuit simulation for PWM inverter fed permanent synchronous motor (PMSM). Here, the simulation is made using both the Ansys Maxwell and Simplorer. The finite element of the PMSM model is calculated and then its performance is optimized. This model is created in Maxwell two-Dimensional (2D). Moreover, the power inverter and control circuit are established based on the Ansys-Simplorer. The global dynamic model of the PMSM is obtained by co-simulation using Maxwell and Simplorer. The proposed model is exploited to analyze the system with faults caused by electric component such as the short circuit fault in the stator. Here the study of the machine in the faulty case is made and its effects are studied by the illustration of the simulation results.