Identification of Faulty IGBT in Vector Controlled PMSM Drive

Permanent Magnet Synchronous Machines (PMSM) have become more popular for industrial applications due to their unique advantage of high power density and efficiency. The reliability and safety of PMSM is an essential requirement for smooth operation. An open-circuit fault in the inverter affects the PMSM drive's performance, causing excessive speed and torque fluctuations. This paper proposed an Integral Current Error (ICE) technique for identifying faulty IGBT by analyzing the performance of the PMSM drive. The proposed technique is implemented in MATLAB/SIMULINK platform. Simulation results and outcomes the fault identification are presented in this paper.