Universal output feedback control of a class of uncertain nonlinear systems with unknown delays in state, input and output

IF 5.9 2区计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS Automatica Pub Date : 2025-04-01 Epub Date: 2025-01-24 DOI:10.1016/j.automatica.2025.112135

Xin Yu , Wei Lin

引用次数: 0

Abstract

We consider the output feedback control problem for a family of single-input–single-output (SISO) time-delay uncertain nonlinear systems. Under a linear growth condition, we develop a universal output feedback control strategy that achieves adaptive state regulation with global stability, despite of the presence of unknown parameters as well as unknown delays in the state, input and output. The proposed dynamic output compensator relies on the recent progress (Yu and Lin, 2025) in adaptive control of the same class of uncertain systems with unknown delays by memoryless state feedback, and the construction of a dynamic-gain based observer, in the spirit of the universal output feedback control (Lei and Lin, 2005, 2006). As a consequence, we obtain solutions to output feedback control of a chain of time-delay integrators and a class of time-delay linear systems, respectively, both with unknown delays and/or unknown parameters.

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一类状态、输入、输出均有未知时滞的不确定非线性系统的通用输出反馈控制

研究一类单输入-单输出时滞不确定非线性系统的输出反馈控制问题。在线性增长条件下，我们开发了一种通用输出反馈控制策略，该策略可以在状态、输入和输出中存在未知参数和未知延迟的情况下实现全局稳定的自适应状态调节。所提出的动态输出补偿器依赖于最近的进展（Yu and Lin, 2025），基于通用输出反馈控制的精神，通过无记忆状态反馈对具有未知延迟的同类不确定系统进行自适应控制，并构建基于动态增益的观测器（Lei and Lin, 2005, 2006）。因此，我们分别得到了时滞积分器链和一类时滞线性系统的输出反馈控制的解，它们都具有未知的时滞和/或未知的参数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Automatica 工程技术-工程：电子与电气

CiteScore

10.70

自引率

7.80%

发文量

617

审稿时长

5 months

期刊介绍： Automatica is a leading archival publication in the field of systems and control. The field encompasses today a broad set of areas and topics, and is thriving not only within itself but also in terms of its impact on other fields, such as communications, computers, biology, energy and economics. Since its inception in 1963, Automatica has kept abreast with the evolution of the field over the years, and has emerged as a leading publication driving the trends in the field. After being founded in 1963, Automatica became a journal of the International Federation of Automatic Control (IFAC) in 1969. It features a characteristic blend of theoretical and applied papers of archival, lasting value, reporting cutting edge research results by authors across the globe. It features articles in distinct categories, including regular, brief and survey papers, technical communiqués, correspondence items, as well as reviews on published books of interest to the readership. It occasionally publishes special issues on emerging new topics or established mature topics of interest to a broad audience. Automatica solicits original high-quality contributions in all the categories listed above, and in all areas of systems and control interpreted in a broad sense and evolving constantly. They may be submitted directly to a subject editor or to the Editor-in-Chief if not sure about the subject area. Editorial procedures in place assure careful, fair, and prompt handling of all submitted articles. Accepted papers appear in the journal in the shortest time feasible given production time constraints.