Magnetic levitation control with real-time and fewer sensors using finite element method

Issue title: Special Volume: Proceedings of the eleventh International Symposium on Applied Electromagnetics and Mechanics ISEM-Versailles ISEM 03

Article type: Research Article

Authors: Tanaka, A.^a | Torii, S.^{a; *}

Affiliations: [a] Department of Electrical and Electronic Engineering Musashi Institute of Technology, 1-28-1, Tamazutsumi, Setagaya, Tokyo 158-8557, Japan

Correspondence: [*] Corresponding author. Tel.: +81 03 3703 3111 (ext.2764); Fax:+ 81 03 5707 2212; E-mail: torii@ee.musashi-tech.ac.jp

Abstract: This paper proposes a novel scheme of thin steel plate levitation, which uses real-time finite elements calculation. The number of gap sensors is reduced using the proposed method. The simulation of the vibration, which occurs in the steel plate, shows the possibility of real-time installation. Then, the estimated gap length of the electromagnet in the one-end fixed system is compared to the experimental results. In spite of the difference in amplitude, the correspondence of the phase of the vibration clearly shows the possibility and the feasibility of the proposed system. Then, the experiment of the vibration control showed that a position could be estimated with FEM.

Keywords: finite element method, magnetic levitation, sensor-less, thin steel plate

DOI: 10.3233/JAE-2004-650

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 19, no. 1-4, pp. 679-683, 2004