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线性自抗扰控制器的稳定性研究

DOI: 10.3724/SP.J.1004.2013.00574, PP. 574-580

Keywords: 自抗扰控制,线性自抗扰控制,扩张状态观测器,稳定性,输入-输出有界稳定

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Abstract:

?研究了线性扩张状态观测器(Extendedstateobserver,ESO)的估计能力,并且分析了在线性自抗扰控制(Linearactivedisturbancerejectioncontrol,LADRC)下闭环系统的稳定性.对于系统模型未知的情形,给出了线性扩张观测器估计误差有界的证明,并通过分析得出了如下结论:在扩张状态观测器跟踪误差趋于零的前提下,在线性自抗扰控制下的闭环系统可以实现对设定信号的精确跟踪以及输入-输出有界(Boundedinputandboundedoutput,BIBO)稳定.

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