Adaptive finite-time control for non-strict feedback nonlinear systems with infinite number of time-varying actuator failures and output constraints

Sheng, Ning, Jiang, Tianyu, Zhang, Qichun and Cui, Hanxue (2024) Adaptive finite-time control for non-strict feedback nonlinear systems with infinite number of time-varying actuator failures and output constraints. Transactions of the Institute of Measurement and Control. ISSN 1477-0369

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Abstract

This paper presents an adaptive finite-time fault-tolerant control strategy for non-strict feedback nonlinear systems, addressing infinite time-varying actuator faults and output constraints. It introduces a fuzzy adaptive updating law to compensated actuator faults and uses a barrier Lyapunov function (BLF) to handle output constraints in both constrained and unconstrained systems. The method integrates adaptive backstepping and fuzzy logic to manage non-strict feedback challenges and incorporates projection adaptation techniques. The approach incorporates projection adaptation design techniques in its scheme. The controller designed through this method not only ensures finite-time convergence of the system’s output tracking error to the origin but also guarantees compliance with output constraints, even in the face of potentially infinite time-varying actuator failures. The efficacy of this proposed method is corroborated by simulation examples, showcasing its proficiency in managing both actuator faults and output constraints.

Item Type:	Article
Additional Information:	** From Crossref journal articles via Jisc Publications Router ** History: epub 31-12-2024; issued 31-12-2024.
SWORD Depositor:	JISC Router
Depositing User:	JISC Router
Date Deposited:	27 Feb 2025 10:56
Last Modified:	27 Feb 2025 10:56
URI:	https://bnu.repository.guildhe.ac.uk/id/eprint/19545

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