Fast Detection of Open-switch Fault Using Moving Filter for a PWM VSI-fed PMSM Drive System

To improve the reliability of a pulsewidth modulation (PWM) voltage source inverter (VSI) fed permanent magnet synchronous motor (PMSM) drive system, this paper presents a fast openswitch fault detection scheme in multiple switches. An openswitch fault in a PWM VSI often introduces over-current stress to other electric components and can be easily… CONTINUE READING