Dynamic event-triggered fault-tolerant control through a new intermediate observer

Yang Gu, Mouquan Shen, Choon Ki Ahn

Research output: Contribution to journalArticlepeer-review

Abstract

This article presents a new dynamic triggering mechanism for fault-tolerant control of linear systems. In this mechanism, the dynamic threshold is constructed by instantaneous and averaged triggering errors with its bounds. Consequently, it can be automatically adjusted between the bounds. A new intermediate observer is built in the proportional-integral form to improve the estimation accuracy. The corresponding fault-tolerant controller is explored to actively compensate unknown faults. By resorting to the Lyapunov stability theory, a sufficient condition is obtained in terms of linear matrix inequalities to make the closed-loop system uniformly ultimately bounded with the required (Figure presented.) performance. The elitist nondominated sorting genetic algorithm version II (NSGA-II) is adopted to realize the multiobjective optimization of the (Figure presented.) performance index (Figure presented.) and the allowable inter-event time (Figure presented.). Finally, the proposed scheme is verified with two simulation examples.

Original languageEnglish
Pages (from-to)9804-9825
Number of pages22
JournalInternational Journal of Robust and Nonlinear Control
Volume33
Issue number16
DOIs
Publication statusPublished - 2023 Nov 10

Bibliographical note

Funding Information:
This work was supported in part by the National Natural Science Foundation of China under Grants 62173177 and 61773200, the Postgraduate Research and Practice Innovation Program of Jiangsu Province under Grant KYCX23_1438, and the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT) (No. NRF‐2020R1A2C1005449).

Publisher Copyright:
© 2023 John Wiley & Sons Ltd.

Keywords

  • control
  • event-triggered control
  • fault estimation
  • heuristic algorithm
  • linear matrix inequality

ASJC Scopus subject areas

  • Control and Systems Engineering
  • General Chemical Engineering
  • Biomedical Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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