Repulsive Magnetic Levitation Systems Using Motion Control of Magnets

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Repulsive Magnetic Levitation Systems Using Motion Control of Magnets

Authors
Publisher
社団法人日本機械学会
Keywords
  • Magnetic Levitation
  • Permanent Magnet
  • Positioning
  • Magnetic Bearing
  • Actuator
  • Magnetostrictive Actuator
  • I-Pd Control

Abstract

Repulsive magnetic levitation systems with magnets driven by actuators were studied in this paper. In one system, a levitation magnet was driven in the direction of repulsive force to control the position and vibration of the levitated object. In another, a levitation magnet was moved in the lateral directions to stabilize the system in the manner of an inverted pendulum. The first type was studied experimentally with an experimental setup using a magnetostrictive actuator. The damping characteristic was modified well by driving the actuator in proportion to the velocity of the levitated object. The I-PD control was adopted for obtaining desired characteristics of floating position control and active damping of vibration.

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