控制理论(社会学)
观察员(物理)
非线性系统
方案(数学)
计算机科学
控制(管理)
输出反馈
事件(粒子物理)
多项式的
反馈控制
数学
控制工程
工程类
人工智能
数学分析
物理
量子力学
作者
Yanan Qi,Xianfu Zhang,Yanjie Chang,Rui Mu
标识
DOI:10.1016/j.nahs.2023.101416
摘要
This paper addresses the global output-feedback stabilization for a class of uncertain nonlinear systems via a switching event-triggered approach. Typically, the system growth rates are allowed to be arbitrary unknown non-polynomial functions of system output. Note that such nonlinearities cannot be handled by generalizing the design rationales employed in polynomial rate cases. For this reason, an event-triggered mechanism together with a logic-based switching mechanism is proposed to determine not only when to sample but also when to switch the control parameter. With the help of the switching control parameter, an observer-based control scheme is developed to achieve global output-feedback stabilization. Particularly, the control parameter can be adaptively adjusted to a sufficiently large value, so the proposed control scheme has a stronger capability to deal with large uncertainties, inherent nonlinearities, and sampling errors of the system. For more efficient resource saving, an extended investigation is presented by constructing a dynamic event-triggered scheme. Finally, two simulation examples are given to illustrate the effectiveness of the switching event-triggered schemes.
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