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Torque Ripple Suppression-Based Fault-Tolerant Model Predictive Current Control of Five-Phase PMSM Drives with Open-Circuit Faults

In this article, a fault-tolerant strategy based on model predictive current control (MPCC) is proposed to improve the output torque capacity and decrease the torque ripple of a five-phase permanent synchronous magnet motor (PMSM) drive under single and multiple open-circuit faults operations (OCFs). On the principle of the optimal current control, the current reference is modified to suppress torque ripple. Finally, the proposed strategy is proved effective by experiments.