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永磁同步电机无参数整定自抗扰控制器

, PP. 27-34

Keywords: 自抗扰控制,离散最速反馈控制函数,永磁同步电机,参数整定

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Abstract:

提出了一种无需参数整定的自抗扰控制器(NMT-ADRC)。ADRC具有不依赖被控对象模型、无超调、鲁棒性强的优点,越来越受到学术界和工业界的重视。然而,ADRC的非线性反馈控制器(NLSEF)采用近似最速反馈控制(fhan)函数时需要整定三个参数,但这三个参数没有明确的物理意义,只能采取试凑法,整定效果依赖于操作者的经验。针对这一问题,依据fhan函数的特点分析了ADRC的NLSEF控制机理,提出了NMT-ADRC控制器。在这种结构下,NLSEF不包含需要调整的参数,故无需参数整定就可以从理论上达到良好的控制效果。为验证提出算法的有效性,NMT-ADRC被应用到PMSM控制系统中。仿真和实验结果表明,NMT-ADRC控制器可以有效控制PMSM的转速和转矩。

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