Adaptive fuzzy tracking control for a class of uncertain nonlinear systems

  • Authors:
  • Yan-Jun Liu;Ya-Qin Zheng

  • Affiliations:
  • Department of Mathematics and Physics, Liaoning University of Technology, Jinzhou, Liaoning;Department of Mathematics and Physics, Liaoning University of Technology, Jinzhou, Liaoning

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

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Abstract

An adaptive fuzzy control algorithm is designed for a class of uncertain nonlinear nonaffine systems. Fuzzy logic systems are used to approximate unknown nonlinear functions. In contrast to the previous results of nonlinear nonaffine systems, a main advantage is that it does not require a priori knowledge about the sign of the control gain coefficient. It can be proven that the closed-loop system is stable in the sense that all the signals are bounded and the system output track the reference signal to a small neighborhood of the origin by appropriately choosing design parameters.