双定子磁通切换电机的单相断路故障分析与容错控制

Fault-Tolerant Control of Dual-Stator Flux-Switching Permanent Magnet Motor with Single-Phase Fault

研究了一种新型双定子磁通切换(DS-FSPM)电机在单相断路故障情况下,转矩脉动产生的机理。在此基础上,基于维持磁动势不变的控制思路,提出了一种适用于DS-FSPM电机的新型容错控制策略。该策略充分利用DS-FSPM电机内外电机可以同时独立运行的特点,通过重新分配内外电机工作电流,避免了未故障相绕组工作电流发生扰动,从而保证了电机输出转速及转矩的稳定。最终通过仿真分析证明了该容错控制策略的有效性。

Proposed a fault-tolerant control strategy based on a new dual-stator flux-switching permanent magnet （DS-FSPM） Motor and analyzed the torque ripple when one stator phase failure occurs. This strategy could keep the output speed and torque constant by redistributing the current of the inner and outer motor and maintaining the magnetic motive force invariant. Due to that the inner and outer motor of the DS-FSPM motor could be operated independently, the current of regular phases could maintain symmetrical and stable by using this control method. Simulation results proved the effectiveness of the method.