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A Parallel Dual-Redundancy Flux-Switching Permanent Magnet Machine and Its Control Strategy

To satisfy the high reliability demand of driving motor used in electrical vehicles, a novel parallel dual-redundancy flux-switching permanent magnet machine was proposed in this paper, which is composed of two identical machines. The installation angle of the two rotors to eliminate specific order and all odd order harmonic components of cogging torque was derived. Further, the torque sharing control strategy of the two motors and fault- tolerant control strategy when a motor broke down were put forward based on traditional id=0 control strategy. At last, a PDFSPM prototype was designed and the experiment verified the control strategies proposed above well.