Neural network-based adaptive fault-tolerant control for strict-feedback nonlinear systems with input dead zone and saturation

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This study investigates the issue of adaptive fault-tolerant neural control in strict-feedback nonlinear systems. The system is subjected to actuator faults, dead-zone and saturation. To model the unknown functions, radial basis function neural networks (RBFNN) are employed. The proposed approach utilizes a backstepping technique to formulate an adaptive fault-tolerant controller, drawing upon the Lyapunov stability theory and the approximation capabilities of RBFNN. The resultant controller guarantees the boundedness of all signals in the closed-loop system, ensuring precise tracking of the reference signal by the system output with a small, bounded error. Finally, simulation results are provided to illustrate the efficacy of the proposed strategy in addressing actuator faults, dead-zone, and saturation.

Original languageEnglish
Article number107471
JournalJournal of the Franklin Institute
Volume362
Issue number2
Number of pages21
ISSN0016-0032
DOIs
Publication statusPublished - 01.2025

Bibliographical note

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    Research areas

  • Actuator fault, Adaptive control, Dead-zone, Lyapunov function, Nonlinear system, One-link manipulator, Saturation
  • Engineering