Learning Neural Network-Based Fault-Tolerant Formation Control for Elliptical Orbit Spacecraft

Qingxian Jia, Rui Shu, Choon Ki Ahn, Chengxi Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

This article presents an active fault-tolerant formation control method based on learning neural network approaches for elliptical orbit spacecraft with thruster faults. To approximate thruster fault/synthesized perturbation online, we propose a learning radial basis function neural network (RBFNN) model in which the iterative learning algorithm with one algebraic iteration is first adopted to update the weight matrix of the RBFNN. Compared with conventional adaptive RBFNN models, the proposed learning RBFNN model requires fewer computations and allows for discontinuous output measurement. A learning neural network sliding mode observer is explored to accurately and robustly reconstruct the thruster fault and estimate the relative state of the formation. Subsequently, a learning neural network sliding mode control (SMC) law is designed to achieve accurate fault-tolerant configuration tracking for maintenance, in which the learning RBFNN model is used to online approximate and compensate for synthesized perturbations. Compared with the nonlinear terminal SMC method, the proposed control approach exhibits higher tracking accuracy for configuration maintenance without requiring massive computation. Numerical simulations and detailed comparisons are provided to illustrate the feasibility and superiority of the presented spacecraft fault-tolerant formation control approach.

Original languageEnglish
Pages (from-to)1937-1950
Number of pages14
JournalIEEE Transactions on Aerospace and Electronic Systems
Volume60
Issue number2
DOIs
Publication statusPublished - 2024 Apr 1

Bibliographical note

Publisher Copyright:
© 1965-2011 IEEE.

Keywords

  • Fault-tolerant formation control
  • learning neural network
  • spacecraft

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering

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