含有执行器故障的非线性切换互联大系统的自适应模糊Backstepping容错控制  

Adaptive fuzzy backstepping fault-tolerant control for nonlinear large-scale interconnected switched systems with actuator failures

作　　者：马敏[1] 王桐 邱剑彬[1] MA Min;WANG Tong;QIU Jianbin(The Research Institute of Intelligent Control and Systems,Harbin Institute of Technology,Harbin 150001)

机构地区：[1]哈尔滨工业大学智能控制与系统研究所,哈尔滨150001

出　　处：《南京信息工程大学学报（自然科学版）》2018年第6期665-675,776,777,共13页Journal of Nanjing University of Information Science & Technology（Natural Science Edition）

基　　金：国家自然科学基金(61803122;61873311)

摘　　要：本文研究了一类存在执行器故障的非线性互联切换大系统的自适应模糊Backstepping容错控制.首先定义了一个分段右连续函数作为系统的切换信号,系统依据切换信号改变模型.不失一般性,考虑执行器发生两种类型的故障,即卡死故障和失效故障,通过模糊逻辑系统逼近未知非线性函数,并设计自适应模糊容错控制器补偿执行器故障给系统带来的影响.通过Lyapunov定理证明了系统及相关变量的有界性,并基于数值仿真,验证了所提出方法的有效性.Adaptive fuzzy backstepping fault-tolerant control for a class of nonlinear large-scaleinterconnected switched systems with actuator failures is investigated in this paper.The system switches dynamically according to a piecewise right continuous function.Without loss of generality,stuck faults and the faults loss of effectiveness are considered.Fuzzy logic systems are utilized to approximate the unknown nonlinear functions.Considering the actuator failures,an adaptive fuzzy fault-tolerant controller is designed.It is proved that the proposed control method can guarantee that all the signals of the closed-loop system are bounded according to the Lyapunov theorem.A simulation example is presentedto demonstratethe effectiveness of the proposed control strategy.

关 键 词：互联大系统 切换系统 自适应模糊Backstepping控制 执行器故障 容错控制 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]