Adaptive fuzzy finite‐time fault‐tolerant control design for non‐linear systems under sensor faults

Autor: Guodong You, Bin Xu, Yang Cao, Xiaoxin Hou, Shuangle Zhao, Wei Liao
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: IET Control Theory & Applications, Vol 16, Iss 15, Pp 1560-1572 (2022)
Druh dokumentu: article
ISSN: 1751-8652
1751-8644
DOI: 10.1049/cth2.12322
Popis: Abstract In this article, an adaptive fuzzy finite‐time fault‐tolerant control (FTC) scheme for uncertain non‐linear systems under sensor faults is proposed. Compared with the existing methods, the considered system contains unknown time‐varying fault parameters, uncertain non‐linear functions, and can guarantee the performance of the system in finite time. The coupling between fault parameters and actual states is solved by the fault parameters separation method. The fuzzy logic system (FLS) is used to approximate the unknown functions, and combining the backstepping technology an adaptive fault‐tolerant controller is designed. The finite‐time stability of the closed‐loop system is proved by the Lyapunov theory. At last, the numerical simulation and the real physical system simulation verified the effectiveness of the proposed scheme.
Databáze: Directory of Open Access Journals
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