Torque Ripple Suppression of a Five-phase Induction Motor under Single-phase Open

This digest introduces a new minimum torque ripple control strategy for post-fault operation of a five-phase induction motor. Based on the steady-state motor model using symmetrical components (SCs), the torque ripple is mainly caused by the first and fourth SCs. Hence, the current commands are deduced by suppressing the first and fourth SCs under single-phase fault. Compared with the conventional minimum torque ripple strategy, the proposed strategy shows a better performance in terms of torque ripple, average torque and efficiency. Finally, the effectiveness of the proposed strategy is validated by simulation and experimental results.