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线性自抗扰控制参数??0辨识及参数整定规律

DOI: 10.13195/j.kzyjc.2014.0943, PP. 1691-1695

Keywords: 线性自抗扰控制,参数辨识,频域分析,鲁棒性

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Abstract:

针对自抗扰控制中参数??0整定困难的问题,提出一种新的参数辨识方法,对线性自抗扰控制器(LADRC)中的参数??0进行辨识,并提出了LADRC参数整定的基本规律.通过频域分析研究了控制器参数??0和控制器带宽????的变化对闭环系统扰动抑制能力的影响.通过分析闭环控制系统的稳定区域研究了控制器的鲁棒性.仿真结果表明,根据辨识得到的??0可以快速整定LADRC的参数,使LADRC具有较强的鲁棒性.

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