期刊
INFORMATION SCIENCES
卷 546, 期 -, 页码 742-752出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ins.2020.08.059
关键词
Fixed-time stability; Adaptive fuzzy system control; Backstepping; Nonlinear switched system
This paper presents a fuzzy logic adaptive fixed-time control method for nonlinear switched system, addressing the issue of completely uncertain system functions by developing a new criterion of fixed-time stability. The proposed adaptive laws do not satisfy linear differential equations but nonlinear ones, and simulation results confirm the feasibility of the algorithms presented.
This paper considers the problem of fuzzy logic adaptive fixed-time control for nonlinear switched system. Different from existing research results on fixed-time control, the system functions are completely uncertain in this paper. The approximation error will cause Lyapunov function not to be negative definite. To address this problem, a new criterion of fixed-time stability is developed at first. Based on this fixed-time theory, a fuzzy logic control method is proposed by using backstepping technique. The proposed adaptive laws in this paper do not satisfy a series of linear differential equations but nonlinear ones. Simulation results verify the feasibility of presented algorithms. (C) 2020 Elsevier Inc. All rights reserved.
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