Event-triggered anti-disturbance control for switched singular systems based on the uncertainty and disturbance estimator

IF 2.2 4区计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS

IET Control Theory and Applications Pub Date : 2024-09-03 DOI:10.1049/cth2.12734

Anqing Yang, Shuping Ma

引用次数: 0

Abstract

This article studies the event-triggered anti-disturbance control problem for switched singular systems (SSSs) based on the uncertainty and disturbance estimator (UDE). First, a composite controller consisting of feedback control and anti-disturbance control based on UDE is proposed. By constructing the multiple Lyapunov functions and using the average dwell time (ADT) method, sufficient conditions are given to ensure that the closed-loop system is regular, impulse-free and globally uniformly asymptotically stable (GUAS). Further, in order to save resources, the event-triggered control method is introduced into the feedback control, and a novel hybrid event-triggered mechanism (ETM) is proposed, which guarantees that asynchronous switching and Zeno behavior are excluded. And the solvable conditions in terms of linear matrix inequalities (LMIs) are given. Finally, the validity of the proposed results is verified by the simulations.

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基于不确定性和扰动估计的开关奇异系统事件触发抗干扰控制

研究了基于不确定性和扰动估计的切换奇异系统的事件触发抗干扰问题。首先，提出了一种基于UDE的反馈控制与抗干扰控制相结合的复合控制器。通过构造多个Lyapunov函数并采用平均停留时间（ADT）方法，给出了闭环系统是正则、无脉冲和全局一致渐近稳定的充分条件。为了节省资源，在反馈控制中引入了事件触发控制方法，提出了一种新的混合事件触发机制（ETM），保证了异步切换和Zeno行为的排除。并给出了线性矩阵不等式的可解条件。最后，通过仿真验证了所提结果的有效性。

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来源期刊

IET Control Theory and Applications 工程技术-工程：电子与电气

CiteScore

5.70

自引率

7.70%

发文量

167

审稿时长

5.1 months

期刊介绍： IET Control Theory & Applications is devoted to control systems in the broadest sense, covering new theoretical results and the applications of new and established control methods. Among the topics of interest are system modelling, identification and simulation, the analysis and design of control systems (including computer-aided design), and practical implementation. The scope encompasses technological, economic, physiological (biomedical) and other systems, including man-machine interfaces. Most of the papers published deal with original work from industrial and government laboratories and universities, but subject reviews and tutorial expositions of current methods are welcomed. Correspondence discussing published papers is also welcomed. Applications papers need not necessarily involve new theory. Papers which describe new realisations of established methods, or control techniques applied in a novel situation, or practical studies which compare various designs, would be of interest. Of particular value are theoretical papers which discuss the applicability of new work or applications which engender new theoretical applications.