一类带有时滞非线性切换系统的自适应控制方案

摘要

针对一类带有时滞的严格反馈形式下的非线性切换系统,提出了自适应模糊输出反馈控制方案.文章所考虑的系统包含不可测状态和未知非线性函数.首先,为了估计非线性系统中的不可测状态,引入了帕德近似方法.其次,通过利用反步技巧,设计了自适应输出反馈控制器.第三,利用模糊逻辑系统识别系统中的未知函数.控制方案保证了闭路系统的所有信号半全局一致最终有界.%For a class of strict-feedback nonlinear switched system with delays,this paper proposes a adaptive fuzzy output feedback control scheme.This paper considering the system contains the unpredictable state and unknown nonlinear function.First of all,in order to estimate the unpredictable state in the nonlinear switched system,the Pade approximation method is introduced.Secondly,an adaptive output feedback controller is designed by using the back-stepping technique.Third,this paper use the fuzzy logic system to identify unknown functions in the system.The proposed control scheme ensures that all the signals of the closed-loop system are semi-globally uniformly ultimately bounded.