An Event-Triggered Predefined Time Decentralized Output Feedback Fuzzy Adaptive Control Method for Interconnected Systems

This article investigates the event-triggered predefined time output feedback control design problem for nonlinear interconnected systems with nonstrict feedback control structures. Compared with the existing event-triggered output feedback control design schemes, the most significant contribution o...

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Bibliographic Details
Published in:IEEE transactions on fuzzy systems 2023-02, Vol.31 (2), p.631-644
Main Authors: Xu, Hao, Yu, Dengxiu, Sui, Shuai, Chen, C. L. Philip
Format: Article
Language:English
Subjects:
Adaptive control
Basis functions
Control design
Control methods
Control systems
Decentralized adaptive control
Decentralized control
Dynamical systems
event-triggered control
Feedback control
Fuzzy control
Fuzzy logic
Fuzzy systems
Interconnected systems
Nonlinear dynamics
Nonlinear systems
nonsingular control
Output feedback
output feedback control
predefined time control
Stability analysis
Stability criteria
State observers
Systems stability
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Summary:This article investigates the event-triggered predefined time output feedback control design problem for nonlinear interconnected systems with nonstrict feedback control structures. Compared with the existing event-triggered output feedback control design schemes, the most significant contribution of this article is that the system stability time can be preset directly. Fuzzy logic systems (FLSs) and FLSs-based state observer deal with unknown nonlinear dynamics and unmeasured states. Combining with dynamic surface control technology and event-triggered mechanism based on switching threshold strategy, an event-triggered predefined time decentralized output feedback control method is proposed, in which a predefined time filter is designed to solve the computational complexity problem. In addition, the algebraic loop problem and control singular problem are also solved, respectively, by applying the property of fuzzy basis function and L'Hospital's rule. Utilizing the predefined time Lyapunov stability theory, the system stability analysis is given. Finally, the effectiveness and practicability of the proposed control method are verified by practical system simulation cases.
ISSN:1063-6706
1941-0034
DOI:10.1109/TFUZZ.2022.3184834