Numerical simulation of dynamics of radial type superconducting magnetic bearing

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Demachi, Kazuyuki^{a; *} | Miura, Akira^a | Sawada, Akihiko^a | Miya, Kenzo^a | Higasa, Hiromasa^b | Takahata, Ryoichi^c | Kameno, Hiroo^c

Affiliations: [a] Nuclear Engineering Research Laboratory, The University of Tokyo, 2-22 Shirane Shirakata Tokai-mura Naka-gun, Ibaraki 319-1106, Japan | [b] Science Network, 5-2911, Kita-cho, Takamatsu-shi, Kagawa 760-0080, Japan | [c] Koyo Seiko Co., Ltd., 333, Toichi-cho, Kashihara-shi, Nara 634-8555, Japan

Correspondence: [*] Corresponding author: Kazuyuki Demachi, Tel.: +81 29 287 8431; Fax: +81 29 287 8488; E-mail: demachi@tokai.t.u-tokyo.ac.jp

Abstract: The degradation of rotation speed is one of the most significant problems for the practical use of superconducting magnetic bearing (SMB) for flywheel energy storage system. This is called the rotation loss. This phenomena is caused by the AC magnetic field due to the inhomogeneous distribution of magnetic flux density on the permanent magnet (PM) rotor. In this research, our simulation method was improved so that the 3-dimensional rotational dynamics was taken into account.

DOI: 10.3233/JAE-2002-391

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 14, no. 1-4, pp. 127-132, 2002