Analysis and Performance Implications of Open Switch Fault on a Switched Reluctance Motor Utilizing Controller Topologies

In every industrial sector, motors play a critical role as they are connected to numerous rotational applications. The occurrence of an unforeseen motor failure can lead to the disruption of machine functions, impacting various factors including revenue generation, reliability, availability, and safety. Switched reluctance motors (SRM) are considered as a competitive technology due to their fault-tolerant capabilities and robust configuration. The Switched reluctance machines (SRMs) are widely used in the electric aircraft, railway traction, automobile, industrial applications etc. In this paper open switch faults motor characteristics i.e., changes in current, torque, and speed signals has been studied using the three control methods (i) Hysteresis current controller, (ii) Closed loop Proportional Integral (PI) speed controller and, (iii) Model Predictive Controller to analyze SRMs. The purpose is to identify the controller topology which is suitable for the open switch fault-tolerant capabilities on SRM motors. The speed estimation, torque, current and torque ripples are verified by the MATLAB simulation results.