基于复合观测器的多扰动非线性系统有限时间控制

IF 3.2 3区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS
Huifeng Zhang, Xinjiang Wei, Xinqing Li
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引用次数: 0

摘要

本文研究了多扰动情况下基于复合观测器的非线性系统有限时间控制,其中扰动包括两部分,第一类是带有建模误差的谐波扰动,所有其他扰动都属于第二类,称为块状扰动。为了对谐波干扰和叠加干扰进行估计,分别构建了干扰观测器(DO)和扩展状态观测器。在此基础上,结合基于 DO 的控制、主动干扰抑制控制、反步技术和有限时间指令滤波器方法,提出了一种有限时间优雅抗干扰控制器。最终证明,本文提出的设计方法是正确可行的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Composite observer based finite time control for nonlinear systems subjecting to multiple disturbances

Composite observer based finite time control of nonlinear systems in case of multiple disturbances is studied in this article, wherein the disturbances contain two parts, the first type is the harmonic disturbance with modeling errors, and all other disturbances are classified as the second type, known as lumped disturbances. To give estimation of the harmonic disturbance and the lumped disturbances, a disturbance observer (DO) and the extended state observer are constructed, respectively. On this basis, a finite-time elegant anti-disturbance controller is presented by combing DO-based control, active disturbance rejection control, backstepping technique and the finite time command filter method. Eventually, it is proved that the design method put forward in this article is correct and feasible.

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来源期刊
International Journal of Robust and Nonlinear Control
International Journal of Robust and Nonlinear Control 工程技术-工程:电子与电气
CiteScore
6.70
自引率
20.50%
发文量
505
审稿时长
2.7 months
期刊介绍: Papers that do not include an element of robust or nonlinear control and estimation theory will not be considered by the journal, and all papers will be expected to include significant novel content. The focus of the journal is on model based control design approaches rather than heuristic or rule based methods. Papers on neural networks will have to be of exceptional novelty to be considered for the journal.
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