Zero Power Control for Hanging Type Maglev System with Permanent Magnet and VCM(<Special Issue>D & D 2008)

  • SUN Feng
    Department of Intelligent Mechanical System Engineering, Kochi University of Technology
  • OKA Koichi
    Department of Intelligent Mechanical System Engineering, Kochi University of Technology

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Other Title
  • 永久磁石とVCMを用いた懸垂型磁気浮上機構における零パワ制御(<特集>D&D 2008)
  • 永久磁石とVCMを用いた懸垂型磁気浮上機構における零パワ制御
  • エイキュウ ジシャク ト VCM オ モチイタ ケンスイガタ ジキ フジョウ キコウ ニ オケル ゼロ パワ セイギョ

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Description

This paper describes a new zero power control strategy for a hanging type maglev system. In this maglev device, a permanent magnet generates the levitation force, and a Voice Coil Motor (VCM) maintains the device stably in an equilibrium-levitated position. In order to realize zero power control, a spring is installed in the maglev device so as to counterbalance the force of the actuator on the mass gravitation, and a current integral feedback loop is used in the controller so as to adjust the actuator current zero in the balance state. A prototype of the maglev system was constructed; a theoretical model was developed; a zero power controller was designed and constructed; and numerical simulations and experiments were performed. The results shown here suggest that this zero power control strategy is feasible and effective for the hanging type maglev system using a permanent magnet and VCM.

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