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access icon free Adaptive output feedback control for a class of large-scale output-constrained non-linear time-delay systems

  • Author(s): Hanfeng Li 1 ; Xianfu Zhang 1 ; Qingrong Liu 2
    • View affiliations
  • Source: Volume 12, Issue 1, 02 January 2018, p. 174 – 181
    DOI:  10.1049/iet-cta.2017.0500 , Print ISSN 1751-8644, Online ISSN 1751-8652
© The Institution of Engineering and Technology
Received 05/05/2017, Accepted 05/10/2017, Revised 09/09/2017, Published 10/10/2017

This study is concerned with the adaptive stabilisation problem for a class of large-scale output-constrained non-linear time-delay systems in strict-feedback form. The investigative system satisfies a more general growth condition and the precise knowledge of the time delay is not required to be known a priori. Firstly, an observer is designed by the dynamic gain control design technique. Then, based on a novel Lyapunov–Krasovskii functional, the output constraints are satisfied and the stability of the closed-loop control system is achieved. Finally, a numerical example is given to demonstrate the effectiveness of the proposed design procedure.

Inspec keywords: adaptive control; large-scale systems; delays; nonlinear control systems; control system synthesis; gain control; closed loop systems; Lyapunov methods

Other keywords: dynamic gain control design technique; adaptive stabilisation problem; large-scale output-constrained nonlinear time-delay systems; closed-loop control system stability; Lyapunov-Krasovskii functional; adaptive output feedback control

Subjects: Control system analysis and synthesis methods; Distributed parameter control systems; Nonlinear control systems; Multivariable control systems; Phase and gain control; Stability in control theory; Self-adjusting control systems

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