控制理论(社会学)
反推
有界函数
非线性系统
李雅普诺夫函数
观察员(物理)
数学
非线性控制
控制器(灌溉)
计算机科学
自适应控制
控制(管理)
数学分析
量子力学
生物
物理
人工智能
农学
作者
Hanfeng Li,Xianfu Zhang,Gang Feng
出处
期刊:IEEE transactions on cybernetics
[Institute of Electrical and Electronics Engineers]
日期:2021-05-01
卷期号:51 (5): 2319-2326
被引量:44
标识
DOI:10.1109/tcyb.2020.2965142
摘要
This article is concerned with the event-triggered output feedback control problem for a class of switched nonlinear strict-feedback systems subject to asymmetric input saturation. The nonlinear terms are assumed to be bounded by a continuous function of the output multiplied by unmeasured states. The hyperbolic tangent function is employed to process the error caused by the event-triggered scheme, and an indicator function of the saturation degree is used to analyze the influence generated by the asymmetric input saturation. By adopting the common Lyapunov function method and the dynamic gain control design approach, a new design procedure based on a reduced-order observer is proposed to construct an output feedback controller. It is proved by the Lyapunov analysis that the proposed event-triggered control scheme can ensure that all the signals of the closed-loop system are globally bounded. Furthermore, the output can be converged to a bounded region around the origin, and this region can be tuned to be small by adjusting the design parameters. Different from typical existing results on the switched nonlinear strict-feedback systems, the celebrated backstepping method is not employed in this article. The continuous stirred tank reactor is finally used to demonstrate the effectiveness of the proposed control scheme.
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