Cited by 11Adaptive Control of Nonlinear SystemsStability and Control of Uncertain SystemsNeural Networks Stability and Synchronization

Neural networks-based adaptive fault-tolerant control for a class of nonstrict-feedback nonlinear systems with actuator faults and input delay

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Kharrat, Mohamed, Alhazmi, Hadil·2024·AIMS Mathematics

Abstract

This paper addresses the challenge of adaptive control for nonstrict-feedback nonlinear systems that involve input delay, actuator faults, and external disturbance. To deal with the complexities arising from input delay and unknown functions, we have incorporated Pade approximation and radial basis function neural networks, respectively. An adaptive controller has been developed by utilizing the Lyapunov stability theorem and the backstepping approach. The suggested method guarantees that the tracking error converges to a compact neighborhood that contains the origin and that every signal in the closed-loop system is semi-globally uniformly ultimately bounded. To demonstrate the efficacy of the proposed method, an electromechanical system application example, and a numerical example are provided. Additionally, comparative analysis was conducted between the Pade approximation proposed in this paper and the auxiliary systems in the existing method. Furthermore, error assessment criteria have been employed to substantiate the effectiveness of the proposed method by comparing it with existing results.

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Authors
Kharrat, M., & Alhazmi, H.
Affiliations
  • Jouf University (SA)
  • Princess Nourah bint Abdulrahman University (SA)
Corresponding author
Alhazmi, Hadil
Venue
AIMS Mathematics
Published
2024
Volume
9
Issue
6
Pages
13689-13711
ISSN
2473-6988 (ISSN-L)
OpenAlex
W4394827267
Cited by
11
References
34
Citations by year
2026: 5 · 2025: 4 · 2024: 2
FWCI
1.72
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • AIMS Mathematics (publishedVersion, cc-by-nc-sa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Princess Nourah Bint Abdulrahman University (PNURSP2024R528)
Topics
  • Physical Sciences › Engineering › Control and Systems Engineering › Adaptive Control of Nonlinear Systems
  • Physical Sciences › Engineering › Control and Systems Engineering › Stability and Control of Uncertain Systems
  • Physical Sciences › Computer Science › Computer Networks and Communications › Neural Networks Stability and Synchronization
Keywords
adaptive fault-tolerant control, nonstrict-feedback nonlinear systems, actuator faults, input delay, Padé approximants, radial basis function neural network, backstepping control, semi-global uniform ultimate boundedness, external disturbances, electromechanical systems

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