Computation of levitation force in a highly magnetized HTS bulk magnet system

Issue title: ASAEM 2001

Article type: Research Article

Authors: Hahn, Seung-yong^a | Hahn, Sungchin^b | Hahn, Song-yop^a

Affiliations: [a] School of electrical engineering, Seoul National University, San 56-1, Shilim-Dong, Kwanak-Gu, Seoul, Korea. Tel: +82 2 880 7993; E-mail: odol002@snu.ac.kr, syhahn@snu.ac.kr | [b] School of electrical engineering, Dong-A University, Seo-Gu, Dongdaeshin-Dong, Pusan, Korea. Tel.: +82 51 299 7737; E-mail: schahn@daunet.donga.ac.kr

Abstract: Levitation force between a highly magnetized superconducting bulk magnet (SBM) and a permanent magnet (PM) was numerically calculated considering non-linear J-E relation of a SBM and demagnetization of a PM. The variation of the levitation force was found according to operating temperatures, maximum trapped flux densities of a SBM, and gap distances between a SBM and a PM. Saturation of the levitation force was found. The results of this research could be applied to achieve an optimal design of a real levitation system using SBMs and PMs.

DOI: 10.3233/JAE-2002-242

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 16, no. 3-4, pp. 225-231, 2002