Fault detection and diagnosis of six-phase voltage source inverter using trajectory mass current center

This paper presents a new fault detection and diagnosis method for a six-phase voltage source inverter (VSI). The proposed method is based on an equivalent six dimension of a current trajectory mass center of the VSI output currents. This approach allows detecting and identifying the faulty power switch. The proposed approach results in a fast and reliable fault detection method. The performance of a proposed technique, are confirmed through several simulation and experimental results.