具有全状态信息约束的不确定非线性系统的事件触发预定义时间跟踪控制

IF 2.1 3区计算机科学 Q3 AUTOMATION & CONTROL SYSTEMS

Systems & Control Letters Pub Date : 2025-04-23 DOI:10.1016/j.sysconle.2025.106104

Lihong Gao , Zhen Wang , Xia Huang , Hao Shen , Jianwei Xia

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引用次数: 0

摘要

研究了一类具有不可测约束状态的不确定非线性系统的事件触发的预定义时间跟踪控制问题。状态观察者被设计用来估计不可测量的状态。此外，利用坐标变换和势垒李雅普诺夫函数有效地处理状态约束。引入了带有交换阈值的事件触发机制，以节省通信资源，同时防止芝诺行为。所提出的控制策略保证了闭环系统所有信号保持有界，状态约束得到满足，跟踪误差在预定义时间内收敛到原点的小邻域。通过数值算例和范德波尔振荡器验证了该方法的有效性。

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Event-triggered predefined-time tracking control for uncertain nonlinear systems with constraints related to full state information

This paper addresses the event-triggered predefined-time tracking control problem for a class of uncertain nonlinear systems with unmeasurable and constrained states. State observers are designed to estimate unmeasurable states. Additionally, coordinate transformations and barrier Lyapunov functions are employed to handle state constraints effectively. An event-triggered mechanism with a switching threshold is introduced to save communication resources while preventing Zeno behavior. The proposed control strategy ensures that all closed-loop system signals remain bounded, state constraints are satisfied, and the tracking error converges to a small neighborhood of the origin within a predefined time. The effectiveness of the proposed approach is validated through a numerical example and the Van Der Pol oscillator.

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来源期刊

Systems & Control Letters 工程技术-运筹学与管理科学

CiteScore

4.60

自引率

3.80%

发文量

144

审稿时长

6 months

期刊介绍： Founded in 1981 by two of the pre-eminent control theorists, Roger Brockett and Jan Willems, Systems & Control Letters is one of the leading journals in the field of control theory. The aim of the journal is to allow dissemination of relatively concise but highly original contributions whose high initial quality enables a relatively rapid review process. All aspects of the fields of systems and control are covered, especially mathematically-oriented and theoretical papers that have a clear relevance to engineering, physical and biological sciences, and even economics. Application-oriented papers with sophisticated and rigorous mathematical elements are also welcome.