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Stability and stabilisation of discrete-time networked control systems: a new time delay system approach

Stability and stabilisation of discrete-time networked control systems: a new time delay system approach

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  • Author(s): Y.-B. Zhao 1, 2 ; G.-P. Liu 2, 3 ; D. Rees 2
    • View affiliations
    • Affiliations: 1: Department of Aerospace Engineering, University of Glasgow, Glasgow, UK
      2: Faculty of Advanced Technology, University of Glamorgan, Pontypridd, UK
      3: CTGT Center, Harbin Institute of Technology, Harbin, People's Republic of China
  • Source: Volume 4, Issue 9, September 2010, p. 1859 – 1866
    DOI:  10.1049/iet-cta.2009.0366 , Print ISSN 1751-8644, Online ISSN 1751-8652
© The Institution of Engineering and Technology
Published

A large number of research works on networked control systems (NCSs) are from the time delay system (TDS) perspective, however, it is noticed that the description of the network-induced delay is too general to represent the practical reality. By recognising this fact, a novel TDS model for NCSs is thus obtained by depicting the network-induced delay more specifically. Based on this model, stability (robust stability) and stabilisation results are obtained using delay-dependent analysis approach, which are less conservative compared with conventional models because of the specific description of the network-induced delay in the new model. A numerical example illustrates the effectiveness of the proposed approach.

Inspec keywords: robust control; delay systems; discrete time systems; delays; distributed control

Other keywords: time delay system; robust stability; discrete-time system; delay-dependent analysis; networked control system; network-induced delay

Subjects: Discrete control systems; Distributed parameter control systems; Stability in control theory

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