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JACIII Vol.21 No.4 pp. 591-596
doi: 10.20965/jaciii.2017.p0591
(2017)

Paper:

Design of a MIMO Levitation Controller for Maglev Transportation System

Tran Huu Luat and Yong-Tae Kim

Department of Electrical, Electronic and Control Engineering, Hankyong National University
327 Joongang-ro, Anseong, Gyeonggi-do 17579, Korea

Corresponding author

Received:
March 21, 2016
Accepted:
January 4, 2017
Published:
July 20, 2017
Keywords:
levitation control, MIMO Maglev system, PID control, force loop controller, transportation system
Abstract

In this paper, the levitation control method of a MIMO Magnetic Levitation (Maglev) transportation system with 3-DOF is presented. Fluctuations of magnetic poles cause the Maglev system to become critically unstable. We propose a design method of the MIMO Maglev controller based on SISO Maglev control technology to correct the suspension and compensate for the effect of rotational motions. In addition, a force loop controller is designed for placement in front of each sub-controller of an electromagnet for stability improvement. The proposed control method is evaluated using simulations and real experiments using the developed Maglev transportation system.

References
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Last updated on Dec. 12, 2017