Decentralized adaptive tracking control of nonaffine nonlinear large-scale systems with time delays

  • Authors:
  • Zhi-Zhong Mao;Xiao-Shi Xiao

  • Affiliations:
  • Automation Institute, College of Information Science and Engineering, Northeastern University, Shenyang, Liaoning 110819, China;Automation Institute, College of Information Science and Engineering, Northeastern University, Shenyang, Liaoning 110819, China

  • Venue:
  • Information Sciences: an International Journal
  • Year:
  • 2011

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Abstract

This paper addresses the problem of decentralized tracking control of large-scale systems with uncertain nonaffine nonlinear isolated subsystems and nonlinear interconnections with time-varying delays. Based on Lyapunov-Krasovskii functional approach and implicit function theorem, a delay-independent decentralized tracking controller is proposed. Due to functional approximation capability of fuzzy logic systems (FLS), neither strict structure restrictions on the isolated subsystems nor a priori knowledge of the strong interconnections with time-varying delays is required in our control design. Furthermore, transient performance of the resulting closed-loop system is also addressed under an analytical framework. Finally, two numerical examples are provided to show the effectiveness of the proposed controller.