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
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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