Two Methods of Fault Detection in the PMSM Electric Drive IGBT-Based Inverter

摘要

The paper considers abnormal operation modes of an electric drive power subsystem with permanent magnet synchronous motor (PMSM), such as breakdown and burnout of IGBT-transistor in the three-phase inverter. The effect of these faults on the spectrum and form of the currents in the windings of the synchronous motor was studied. Heuristic algorithms based on the form features of the winding currents in abnormal conditions were proposed for faults detection.