Construction of the stator installed in the superconducting magnetic bearing for a 10 kWh flywheel

被引：11

作者：

Koshizuka, N

Matsunaga, K

Yamachi, N

Kawaji, A

Hirabayashi, H

Murakami, M

Tomita, M

Une, S

Saito, S

Isono, M

Nasu, H

Maeda, T

Ishikawa, F

机构：

[1] ISTEC, Morioka Lab Appl Supercond Technol, Supercond Res Lab, Morioka, Iwate 0200852, Japan

[2] Supercond Res Lab, Koto Ku, Tokyo 1350062, Japan

[3] Shibaura Inst Technol, Minato Ku, Tokyo 1088548, Japan

[4] Railway Tech Res Inst, Kokubunji, Tokyo 1858540, Japan

[5] Ishikawajima Harima Heavy Ind Co Ltd, Isogo Ku, Yokohama, Kanagawa 2358501, Japan

[6] Shikoku Res Inst Inc, Kagawa 7610192, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2004年 / 412卷

关键词：

superconducting stator; superconducting magnetic bearing; flywheel energy storage system; levitation force; rotation loss;

D O I：

10.1016/j.physc.2004.01.100

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We fabricated a superconducting magnetic bearing module consisting of a stator of epoxy resin impregnated YBaCuO bulks and a rotor of NdFeB permanent magnet circuits. We obtained levitation force density of 10.5 N/cm(2) at 67 K and rotation loss per levitation force of 2.5 mW/N at 77 K. The rotation loss was reduced by the decrease of magnetic field inhomogeneity in the circular direction along the ring shape permanent magnet of the rotor. Based on these results we constructed a stator consisting of five modules and installed in the form of superconducting magnetic bearing for a 10 kWh class flywheel energy storage test system. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：756 / 760

页数：5

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