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Improved stability conditions for uncertain neutral-type systems with time-varying delays

  • Yu Ren
  • , Zhiguang Feng*
  • , Guanghui Sun
  • *Corresponding author for this work
  • School of Astronautics, Harbin Institute of Technology
  • Bohai University

Research output: Contribution to journalArticlepeer-review

Abstract

This paper investigates the robust stability problem for a class of uncertain neutral-type delayed systems. The systems under consideration contain parameter uncertainties and time-varying delays. We aim at designing less conservative robust stability criteria for such systems. A new second-order reciprocally convex inequality is first proposed in order to deal with double integral terms. Then, by constructing a new Lyapunov- Krasovskii functional and employing the improved Wirtinger-based integral inequality and the reciprocally convex combination approaches, novel stability criteria are obtained. Moreover, the stability conditions for standard time-delay system are obtained as by-product results. Comparisons in three numerical examples illustrate the effectiveness of our results.

Original languageEnglish
Pages (from-to)1982-1993
Number of pages12
JournalInternational Journal of Systems Science
Volume47
Issue number8
DOIs
StatePublished - 10 Jun 2016
Externally publishedYes

Keywords

  • Lyapunov-Krasoviskii functional
  • neutral-type systems
  • stability criteria
  • time-varying delay
  • uncertainty

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