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Observer-based output feedback control of networked control systems with non-uniform sampling and time-varying delay

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  • Su Meng
  • Jie Chen
  • Jian Sun

Abstract

This paper investigates the problem of observer-based output feedback control for networked control systems with non-uniform sampling and time-varying transmission delay. The sampling intervals are assumed to vary within a given interval. The transmission delay belongs to a known interval. A discrete-time model is first established, which contains time-varying delay and norm-bounded uncertainties coming from non-uniform sampling intervals. It is then converted to an interconnection of two subsystems in which the forward channel is delay-free. The scaled small gain theorem is used to derive the stability condition for the closed-loop system. Moreover, the observer-based output feedback controller design method is proposed by utilising a modified cone complementary linearisation algorithm. Finally, numerical examples illustrate the validity and superiority of the proposed method.

Suggested Citation

  • Su Meng & Jie Chen & Jian Sun, 2017. "Observer-based output feedback control of networked control systems with non-uniform sampling and time-varying delay," International Journal of Systems Science, Taylor & Francis Journals, vol. 48(14), pages 3118-3128, October.
    • Handle: RePEc:taf:tsysxx:v:48:y:2017:i:14:p:3118-3128
    DOI: 10.1080/00207721.2017.1367053
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    References listed on IDEAS

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    1. Lifeng Ma & Zidong Wang & Yugang Niu & Yumimg Bo & Zhi Guo, 2011. "Sliding mode control for a class of nonlinear discrete-time networked systems with multiple stochastic communication delays," International Journal of Systems Science, Taylor & Francis Journals, vol. 42(4), pages 661-672.
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