Robust adaptive quasi-sliding mode controller for discrete-time systems

Xinkai Chen, Toshio Fukuda

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In this paper, a discrete robust quasi-sliding mode adaptive controller is presented for the system with model uncertainties, unmodeled dynamics and bounded disturbances. The proposed method is adaptive control in conjunction with a sliding mode based controller design. The bounded motion of the state around the sliding surface and the stability of the global system in the sense that all signals remain bounded are guaranteed. In the proposed adaptive algorithms, the dead-zone method is employed even though the upper and lower bounds of the disturbances are unknown. Simulation results have shown the effectiveness of the proposed algorithms.

Original languageEnglish
Pages (from-to)165-173
Number of pages9
JournalSystems and Control Letters
Volume35
Issue number3
DOIs
Publication statusPublished - 1998 Oct 19

Keywords

  • Adaptive algorithm with dead zone
  • Bounded disturbances
  • Discrete quasi-sliding mode
  • Model uncertainties
  • Stability
  • Unmodeled dynamics

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science(all)
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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