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Composite Adaptive Fuzzy Prescribed Performance Control of Nonlinear Systems

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  • Xudong Cao
  • Jianjun Wang
  • Wei Xiang

Abstract

This paper proposes an adaptive fuzzy prescribed performance control (PPC) method of a class of uncertain nonlinear systems. Different from the traditional PPC approach that requires the exact values of the initial conditions, by using a new type of performance function, the proposed PPC scheme together with a composite adaptation law works effectively even without the knowledge of initial conditions. Meanwhile, the constructed disturbance observer and fuzzy logic systems can estimate system uncertainties including external disturbances and fuzzy approximation errors. Under the proposed tracking controller, the boundedness of all involved signals is guaranteed, and the tracking errors satisfy the prescribed performance bounds all the time. Finally, simulation results show the efficacy of the proposed method.

Suggested Citation

  • Xudong Cao & Jianjun Wang & Wei Xiang, 2020. "Composite Adaptive Fuzzy Prescribed Performance Control of Nonlinear Systems," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-10, March.
  • Handle: RePEc:hin:jnlmpe:2948130
    DOI: 10.1155/2020/2948130
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