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http://dx.doi.org/10.5370/KIEE.2015.64.4.578

Switching Control of Electromagnetic Levitation System based on Jacobian Linearization and Input-Output Feedback Linearization  

Jeong, Min-Gil (Dept. of Electrical Engineering, Dong-A University)
Choi, Ho-Lim (Dept. of Electrical Engineering, Dong-A University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.4, 2015 , pp. 578-585 More about this Journal
Abstract
Electromagnetic levitation system(EMLS) is one of the well known nonlinear systems. Often, it is not easy to control an EMLS due to its high nonlinearity. In this paper, we first apply two linearization method(jacobian and input-output feedback linearization) to design two feedback controllers for an EMLS. Then, by observing the advantages of each controller, we design a switching control algorithm which engage two controllers depending on the position of the steel ball in order to achieve the improved performance over each controller. The validity of our switching control approach is verified via both simulation and actual experimental results.
Keywords
Electromagnetic levitation system; Jacobian linearization; Input-output feedback linearization; Switching control;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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