Open-Switch Fault Detection of Five-Phase PMSM Drive Using TS-Fuzzy Logic Strategy

Five-phase permanent magnet synchronous machines PMSMs can offer smoother and more uninterrupted torque compared to three-phase motors. This can lead to lower torque ripple and higher overall performance, especially in cases in which precise control is needed. On the other hand, in order to maintain a certain level of availability and reliability in such AC drive system, fault detection and fault tolerance are considered as important elements in industrial applications. Therefore, this work focuses on fault detection and direct torque control (DTC) of five-phase PMSM drive system under inverter open-switch/leg failure. A normalized average current approach is combined with fuzzy logic approach for fault detection and localization. MATLAB/Simulink software was used to examine the effectiveness of the proposed fault detection technique algorithm.