基于事件触发的高阶切换非线性系统的有限时间动态面跟踪控制
Event-triggered adaptive fuzzy tracking control for high-order nonlinear switched systems
王焕清 1孟竺 1刘思文1
作者信息
- 1. 渤海大学数学科学学院,辽宁锦州 121013
- 折叠
摘要
针对一类高阶切换非线性系统,研究了基于事件触发的自适应跟踪控制问题.首先,利用模糊逻辑系统近似系统中的不确定非线性函数.通过引入有限时间收敛的一阶滤波器,解决了由虚拟控制器重复求导所导致的计算复杂度问题.利用backstepping控制技术和公共李雅普诺夫函数方法,提出了一种自适应模糊有限时间动态面控制算法.所提出的控制方案可以保证闭环系统的所有信号在有限时间内实现有界并且跟踪误差在有限时间内收敛到原点的一个小邻域内.最后,数值例子说明了所提出控制策略的有效性.
Abstract
The issue of event-triggered adaptive fuzzy tracking control for high-order switched nonlinear systems is discussed.The uncertain nonlinear functions are approximated by utilizing fuzzy logic systems.In particular,a finite-time convergence filter is proposed to avoid the problem of repeated differentiation of virtual controllers.On the basis of the backstepping control technique and the common Lyapunov function approach,a fuzzy finite-time dynamic surface control scheme is developed.The proposed control scheme can ensure the all the signals in closed-loop systems are bounded and tracking error converges to an area of zero in finite time.Numerical examples further illustrate the effectiveness of the proposed control strategy.
关键词
高阶切换系统/动态面控制/事件触发机制/有限时间控制Key words
high-order switched systems/dynamic surface control/event-triggered mechanism/finite-time control引用本文复制引用
出版年
2024
NETL
NSTL
万方数据