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http://dx.doi.org/10.7782/JKSR.2015.18.1.15

Levitation Control Simulation of a Maglev Vehicle Considering Guideway Flexibility  

Han, Jong-Boo (Graduate School of Mechanical Design and Mechatronics Engineering, Chungnam National University)
Lim, Jaewon (Dept. of Magnetic Levitation and Linear Drive, Korea Institute of Machinery and Materials)
Kim, Chang-Hyun (Dept. of Magnetic Levitation and Linear Drive, Korea Institute of Machinery and Materials)
Han, Hyung-Suk (Dept. of Magnetic Levitation and Linear Drive, Korea Institute of Machinery and Materials)
Kim, Sung-Soo (Department of Mechatronics Engineering, Chungnam National University)
Publication Information
Journal of the Korean Society for Railway / v.18, no.1, 2015 , pp. 15-24 More about this Journal
Abstract
In magnetic levitation vehicles, the clearance between the magnet and track should be maintained within an allowable range through a feedback control loop. The flexibility of the guideway would introduce additional modes in the overall suspension system, resulting in dynamic interaction between the guideway vibration and the electromagnetic suspension control system. This dynamic interaction can be a serious problem, particularly at very low speeds or standstill, and may cause airgap instability. To optimize the overall system dynamics, an integrated dynamic model including mechanical and electrical parts and a flexible guideway as well as a control loop was developed. With the proposed model, airgap simulations at standstill were performed while varying the control gains, specifically with the aim of understanding the effects of gains of the PID controller on the airgap variation. The findings may be used to achieve a stable levitation controller design.
Keywords
EMS type Maglev vehicle; Airgap; Dynamic simulation; Dynamic interaction; Flexible guideway;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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