Event-Based Dynamic Output Feedback Adaptive Fuzzy Control for Stochastic Nonlinear Systems

被引:77
作者
Hua, Changchun [1 ]
Li, Kuo [1 ]
Guan, Xinping [2 ]
机构
[1] Yanshan Univ, Inst Elect Engn, Qinhuangdao 066004, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai 200240, Peoples R China
基金
中国国家自然科学基金;
关键词
Dynamic gain observer; event-triggered control; fuzzy control; prescribed performance; stochastic nonlinear system; LARGE-SCALE SYSTEMS; SMALL-GAIN APPROACH; TRACKING CONTROL; STABILIZATION; DESIGN;
D O I
10.1109/TFUZZ.2018.2792431
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This paper focuses on the problem of decentralized event-based dynamic output feedback adaptive fuzzy control for a class of interconnected stochastic nonlinear systems. In order to relax the Lipschitz condition for the nonlinearity, a novel dynamic gain observer is constructed to estimate the unmeasured state variables. The funnel-like control technique is proposed to ensure that the output of each subsystem satisfies the prescribed performance requirement. To save energy in signal transmission, the controller and its triggered mechanism are codesigned based on hackstepping method. By using the approximation theory of fuzzy logic systems, an unknown continuous function is approximated, and the difficulty caused by unmodeled dynamics is removed with the aid of changing supply function idea. By applying the Lyapunov stability theory, it is proved that all the signals of the resulting closed-loop system with the designed controller are bounded in probability. Finally, simulation results are given to verify the effectiveness of the theoretical results.
引用
收藏
页码:3004 / 3015
页数:12
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