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Positioning System Based on Electromagnetic Levitation Using Fuzzy Learning Control

Authors
  • Adrian-Vasile Duka

    Department of Electrical Engineering, "Petru Maior" University

  • Mihail Abrudean

    Faculty of Automation and Computer Science, The Technical University of Cluj-Napoca

  • Mircea Dulau

    Department of Electrical Engineering, "Petru Maior" University

Abstract
This paper describes the design and implementation of a positioning system based on electromagnetic levitation which uses a learning Fuzzy-PD control strategy. Electromagnetic levitation exhibits nonlinear force-current-distance characteristics, and if controllers are to be designed by using linear analysis, the air gap is restricted to a small region around the chosen operating point. In this work, an attempt has been made to improve the operating range and the trajectory tracking capabilities of an electromagnetic suspension system by adding a learning/adaptive mechanism to a direct Fuzzy-PD controller, developed earlier to stabilize the system around a single operating point.
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Published
2008-09-30
Section
Articles