Mathematics (Nov 2021)

Observer-Based Control for Nonlinear Time-Delayed Asynchronously Switching Systems: A New LMI Approach

  • Amin Taghieh,
  • Ardashir Mohammadzadeh,
  • Jafar Tavoosi,
  • Saleh Mobayen,
  • Thaned Rojsiraphisal,
  • Jihad H. Asad,
  • Anton Zhilenkov

DOI
https://doi.org/10.3390/math9222968
Journal volume & issue
Vol. 9, no. 22
p. 2968

Abstract

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This paper designs an observer-based controller for switched systems (SSs) with nonlinear dynamics, exogenous disturbances, parametric uncertainties, and time-delay. Based on the multiple Lyapunov–Krasovskii and average dwell time (DT) approaches, some conditions are presented to ensure the robustness and investigate the effect of time-delay, uncertainties, and lag issues between switching times. The control parameters are determined through solving the established linear matrix inequalities (LMIs) under asynchronous switching. A novel LMI-based conditions are suggested to guarantee the H∞ performance. Finally, the accuracy of the designed observer-based controller is examined by simulations on practical case-study plants.

Keywords