Authors: Deepanshu, Ramesh, Arvind Rai
Abstract: Multi-phase permanent magnet synchronous machines (PMSMs) propose an improved alternative to conventional three-phase PMSMs in faulty conditions. Multi-phase PMSMs have the ability to minimize the number of disturbances in industrial applications. In this study, mathematical models under health and fault conditions of three and five-phase PMSMs are investigated. Moreover, the performance and fault-tolerant capabilities of a five-phase PMSM are studied and compared to a conventional three-phase PMSM. During single and double-phase open-circuit fault conditions of the five-phase PMSM, a solution is offered that maximizes output torque and reduces torque pulsations. Simulation results show superiority of the fivephase PMSM, in addition to sustaining more fault-tolerant capability than the conventional three-phase PMSM. Simulation results are carried out using Matlab/Simulink software.
Keywords: Fault-tolerant control, five-phase open-circuit fault, permanent magnet synchronous machine
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