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四相永磁容错电机短路故障容错策略

, PP. 1489-1494

Keywords: 容错,短路故障,永磁电机,驱动拓扑,磁-路仿真

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Abstract:

四相永磁容错电机采用被容错齿隔开的集中式绕组结构,本质上具有一定的容错能力和故障出现后连续运行的能力.针对H桥和星形这两种驱动拓扑结构,在发生单相绕组出线端部短路时,以容错控制后的转矩满足正常需求为目标,分别采用直接转矩补偿方法和旋转磁动势不变方法进行容错控制;对两种容错控制策略进行了推导和对比分析,并对相关结果进行了磁-路联合仿真计算,验证了理论分析的正确性.

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