Design of a fuzzy gain scheduling controller having input saturation: A comparative study

Yan Wen Huang, Pi Cheng Tung

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A fuzzy gain scheduling proportional controllers that exhibits the improved performance than the conventional linear fixed gain controller having input saturation is proposed in this paper. We proposed an adaptive anti-windup control system in which the gain of a proportional controller is dynamically tuned by a fuzzy PD system. The methodology employed in the analysis is based on the describing function (DF), which is determined the range of the universal discourse for the output of the fuzzy PD system. Other approaches are the linear quadratic regulator (LQR) method and combined back-calculation and generalized conditioning anti-windup. In this paper, a comparison study of these three approaches for design anti-windup controller is made. The simulation results show the differences and confirm the availability of the proposed design approaches.

Original languageEnglish
Pages (from-to)249-256
Number of pages8
JournalJournal of Marine Science and Technology (Taiwan)
Issue number4
StatePublished - Dec 2009


  • Adaptive control
  • Describing function
  • Fuzzy gain scheduling
  • Fuzzy PD system
  • Input saturation
  • Linear quadratic regulator (LQR)
  • Nyquist
  • Proportional controllers


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