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http://dx.doi.org/10.5139/IJASS.2003.4.2.069

Least Squares Based PID Control of an Electromagnetic Suspension System  

Park, Yon-Mook (Division of Aerospace Engineering Department of Mechanical Engineering Korea Advanced Institute of Science and Technology)
Tahk, Min-Jea (Division of Aerospace Engineering Department of Mechanical Engineering Korea Advanced Institute of Science and Technology)
Nam, Myeong-Ryong (Satellite Technology Research Center Korea Advanced Institute of Science and Technology)
Seo, In-Ho (Satellite Technology Research Center Korea Advanced Institute of Science and Technology)
Lee, Sang-Hyun (Satellite Technology Research Center Korea Advanced Institute of Science and Technology)
Lim, Jong-Tae (Division of Electrical Engineering Department of Electrical Engineering & Computer Science Korea Advanced Institute of Science and Technology)
Publication Information
International Journal of Aeronautical and Space Sciences / v.4, no.2, 2003 , pp. 69-78 More about this Journal
Abstract
In this paper, we develop the so-called functional test model for magnetic bearing wheels. The functional test model developed in this paper is a kind of electromagnetic suspension systems and has three degree of freedom, which consists of one axial suspension from gravity and the other two axes gimbaling capability to small angle, and does not include the motor. For the control of the functional test model, we derive the optimal electromagnetic forces based on the least squares method, and use the proportional-integral derivative controller. Then, we develop a hardware setup, which mainly consists of the digital signal processor and the 12-bit analog-to-digital and digital-to-analog converters, and show the experimental results.
Keywords
Electromagnetic suspension system; Magnetic bearing wheel; Least squares method; Proportional-integral-derivative control;
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