Real-time simulation of a PMSM drive in faulty modes with validation against an actual drive system

This paper presents real-time simulation results of a permanent magnet synchronous machine (PMSM) drive in faulty and non-standard modes and validates these against an actual industrial PMSM drive system. The paper will put emphasis on the test of special and faulty modes in PMSM drives. Results of real-time simulation of a PMSM drive with an open phase and in passive mode (with all IGBTs switched off) will be presented. These working modes are usually difficult to simulate in real-time because of the fixed-causality models used in the real-time simulator.