articleIEEE Transactions on Fuzzy SystemsMar 23, 2017Closed access

Observer-Based Adaptive Fuzzy Decentralized Optimal Control Design for Strict-Feedback Nonlinear Large-Scale Systems

STShaocheng TongKSKangkang SunSSShuai Sui

Liaoning University of Technology

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Abstract

In this paper, the problem of adaptive fuzzy decentralized optimal control is investigated for a class of nonlinear large-scale systems in strict-feedback form. The considered nonlinear large-scale systems contain the unknown nonlinear functions and unmeasured states. By utilizing the fuzzy logic systems to approximate the unknown nonlinear functions and cost functions, a fuzzy state observer is established to estimate the unmeasured states. The control design is divided into two phases. First, by using the state observer and the backstepping design technique, a feedforward decentralized controller with parameters adaptive laws is designed, by which the original controlled strict-feedback nonlinear large-scale…

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Topics
Keywords
  • Control theory (sociology)
  • Backstepping
  • Nonlinear system
  • Feed forward
  • Fuzzy logic
  • Strict-feedback form
  • Controller (irrigation)
  • Adaptive control
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