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永磁同步电动机双机共轴余度系统转子磁钢不对称性

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Keywords: 永磁同步电动机,余度电动机系统,容错,共轴,不对称性

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Abstract:

研究了一种结构新颖的航空永磁同步电动机双机共轴余度系统,它由两台共轴的永磁同步电动机和两套独立的功率变换器组成。文中重点分析了余度电动机转子磁钢安装不对称所造成的角度差问题,理论推导了考虑角度差的必要性,并给出了正确测量角度差的方法。对系统进行了仿真和实验验证,结果表明,在不同管理模式下,正确测量角度差并对角度差进行了补偿,有效地减小了角度差对系统的动、静态特性的影响,降低了系统的功率损耗。

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