Delay and its time-derivative dependent robust stability of uncertain neutral systems with saturating actuators

  • Authors:
  • Fatima Haoussi;Houssaine Tissir

  • Affiliations:
  • Presidence of University Sidi Mohammed Ben Abdellah, Fès, Morocco 30000;Laboratory of Electronics, Signals Systems and Data Processing, Department of Physics, Faculty of Sciences, University Sidi Mohammed Ben Abdellah, Fès, Morocco 30000

  • Venue:
  • International Journal of Automation and Computing
  • Year:
  • 2010

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Abstract

This note concerns the problem of the robust stability of uncertain neutral systems with time-varying delay and saturating actuators. The system considered is continuous in time with norm bounded parametric uncertainties. By incorporating the free weighing matrix approach developed recently, some new delay-dependent stability conditions in terms of linear matrix inequalities (LMIs) with some tuning parameters are obtained. An estimate of the domain of attraction of the closed-loop system under a priori designed controller is proposed. The approach is based on a polytopic description of the actuator saturation nonlinearities and the Lyapunov-Krasovskii method. Numerical examples are used to demonstrate the effectiveness of the proposed design method.