Adaptive fuzzy controller for a precision positioner using electro-magnetic actuator

Chang Han Jou, Jian Shiun Lu, Mei Yung Chen

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper proposes a new type of non-conventional electro-magnetic actuator (EMA) for a two-dimensional micro-positioning platform. It is a repulsive magnetic system consisting of a motion pad and four active coils. Motion pad is caused by the repelling force between the coils and the permanent magnets to the pad. First, exploring the characteristics of the magnetic forces between PMs and electromagnetic coils, the general two-dimensional dynamic model of this system was derived and analyzed. Next, an adaptive fuzzy controller is developed to deal with the unknown parameters to compensate the friction problem of precision positioning. Finally, extensive experimental results demonstrate satisfactory performances including regulation accuracy, tracking performance, and control stiffness for the system.

Original languageEnglish
Pages (from-to)110-117
Number of pages8
JournalInternational Journal of Fuzzy Systems
Volume14
Issue number1
Publication statusPublished - 2012 Mar 1

Keywords

  • Adaptive fuzzy controller
  • Electro-magnetic actuator
  • Precision positioning

ASJC Scopus subject areas

  • Software
  • Theoretical Computer Science
  • Computational Theory and Mathematics
  • Artificial Intelligence

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