The active disturbance rejection control for nonlinear systems using time-varying-gain

Bao Zhu Guo, Cui Zhen Yao, Zhi Liuang Zhao

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

The active disturbance rejection control, as a new control strategy in dealing with the large uncertainties, has been developed rapidly in the last two decades. Basically, the active disturbance rejection control is composed of three main parts: the differential tracking; the extended state observer; and the extended observer-based feedback control. In these three parts, the extended state observer plays a crucial role toward the active disturbance rejection control. The most of the extended state observers are based on the constant high gain parameter tuning which results inherently in the peaking problem near the initial time, and at most the attenuation effect for the uncertainty. In this paper, a time-varying-gain extended state observer is proposed for a class of nonlinear systems, which is shown to reject completely the disturbance and to avoid effectively the peaking phenomena by the proper choice of the gain function. The convergence of the extended state observer for the open-loop system is independently proved. The convergence for the closed-loop system which is based on the extended state observer feedback is also presented. Examples and numerical simulations are used to illustrate the convergence and the peaking diminution.

源语言英语
主期刊名2013 9th Asian Control Conference, ASCC 2013
DOI
出版状态已出版 - 2013
活动2013 9th Asian Control Conference, ASCC 2013 - Istanbul, 土耳其
期限: 23 6月 201326 6月 2013

出版系列

姓名2013 9th Asian Control Conference, ASCC 2013

会议

会议2013 9th Asian Control Conference, ASCC 2013
国家/地区土耳其
Istanbul
时期23/06/1326/06/13

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