Robust stability analysis of networked systems with varying delays

Leonidas Dritsas, Antonios Tzes

Research output: Contribution to journalArticle

Abstract

This article is concerned with networked controlled systems (NCS) with uncertain, varying, bounded transmission delays and asynchronous discrete-time static control laws. It is first shown that the delay variation gives rise to a discrete-time uncertain NCS model; robust stability analysis is carried out via a linear matrix inequality approach which, when combined with a directed parameter search, yields an estimate of robust stability bounds against any variations of the maximum allowable delay (constrained within one sampling period) that the closed-loop system can tolerate. The derived bounds are compared with other techniques relying on the singular values of the perturbed NCS-model. The presented simulation results prove the efficacy of the proposed control scheme.

Original languageEnglish (US)
Pages (from-to)2347-2355
Number of pages9
JournalInternational Journal of Control
Volume82
Issue number12
DOIs
StatePublished - Dec 1 2009

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Linear matrix inequalities
Closed loop systems
Sampling
Robust stability

Keywords

  • Delayed systems
  • Networked controlled systems
  • Robust stability

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications

Cite this

Robust stability analysis of networked systems with varying delays. / Dritsas, Leonidas; Tzes, Antonios.

In: International Journal of Control, Vol. 82, No. 12, 01.12.2009, p. 2347-2355.

Research output: Contribution to journalArticle

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