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磁悬浮开关磁阻电机直接逆/修正逆全域解耦控制

DOI: 10.13334/j.0258-8013.pcsee.2014.33.013, PP. 5902-5909

Keywords: 磁悬浮开关磁阻电机,直接逆,修正逆,解耦控制

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Abstract:

针对磁悬浮开关磁阻电机模型强耦合、非线性和不完全可逆问题,论文研究了一种基于直接逆/修正逆的磁悬浮开关磁阻电机全域解耦控制方法。该方法通过对电机模型的可逆性分析,将工作区域划分为可逆域和不可逆域;然后在可逆域构造直接逆模型,而在不可逆域则通过选取和修正反馈变量,构造出满足可逆条件的修正逆模型,进而将直接逆和修正逆模型串联与磁悬浮开关磁阻电机之前,将其解耦成2个位移子系统和1个速度子系统。在此基础上,对解耦后的位移、速度子系统进行闭环综合,以提高系统的控制性能。最后,通过试验对所提算法在可逆域和不可逆域的可行性进行了验证,结果表明所提算法可以实现电机全域内的高性能解耦控制,且控制系统具有较好的悬浮、调速性能。

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