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


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

March 21, 2016
January 4, 2017
July 20, 2017
levitation control, MIMO Maglev system, PID control, force loop controller, transportation system

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.

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Last updated on Aug. 18, 2017