Guaranteed cost control for networked control system with interval time-varying delay

  • Authors:

  • Gu Zhou;Daobo Wang;Peng Chen;Xiaobo Zhao

  • Affiliations:

  • College of Automation Engineering, Nanjing University of Aeronautics Astronautics, Nanjing, China and School of Power Engineering, Nanjing Normal University, Nanjing, China;College of Automation Engineering, Nanjing University of Aeronautics Astronautics, Nanjing, China;Institute of Information and Control Engineering Technology, Nanjing Normal University, Nanjing, China;School of Power Engineering, Nanjing Normal University, Nanjing, China

  • Venue:
  • CCDC'09 Proceedings of the 21st annual international conference on Chinese Control and Decision Conference
  • Year:
  • 2009

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Abstract

This paper is concerned with the guaranteed cost controller design of Networked control systems (NCSs) with interval varying time-delay. The non-ideal Quality of Servise (QoS) are taken into account by an integrated index τ(t), which related to data dropout, network-induced delay and error sequence. A new analysis method is provided by using the convexity of the matrix function in deriving the results to avoid the conservatism caused by enlarging τ(t) to τM. Suboptimal guaranteed cost state feedback controller and performance index are developed by solving a set of LMIs based on Lyapunov functional method and a cone complementary linearisation (CCL) algorithm. Numerical example and simulation results are given finally to illustrate the effectiveness of our methods.