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Integrated fault-tolerant control approach for linear time-delay systems using a dynamic event-triggered mechanism

Author

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  • M. S. Qian
  • X. G. Yan

Abstract

In this study, a novel integrated fault estimation (FE) and fault-tolerant control (FTC) design approach is developed for a system with time-varying delays and additive fault based on a dynamic event-triggered communication mechanism. The traditional static event-triggered mechanism is modified by adding an internal dynamic variable to increase the inter-event interval and decrease the amount of data transmission. Then, a dynamical observer is designed to estimate both the system state and the unknown fault signal simultaneously. A fault estimation-based FTC approach is then given to remove the effects generated by unknown actuator faults, which guarantees that the faulty closed-loop systems are asymptotical stable with a disturbance attenuation level γ. By theory analysis, the Zeno phenomenon is excluded in this study. Finally, a real aircraft engine example is provided to illustrate the feasibility of the proposed integrated FE and FTC method.

Suggested Citation

  • M. S. Qian & X. G. Yan, 2020. "Integrated fault-tolerant control approach for linear time-delay systems using a dynamic event-triggered mechanism," International Journal of Systems Science, Taylor & Francis Journals, vol. 51(16), pages 3471-3490, December.
    • Handle: RePEc:taf:tsysxx:v:51:y:2020:i:16:p:3471-3490
    DOI: 10.1080/00207721.2020.1817611
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