Test equipment for a flywheel energy storage system using a magnetic bearing composed of superconducting coils and superconducting bulks

被引：44

作者：

Ogata, M. ^{[1
]}

Matsue, H. ^{[1
]}

Yamashita, T. ^{[1
]}

Hasegawa, H. ^{[1
]}

Nagashima, K. ^{[1
]}

Maeda, T. ^{[2
]}

Matsuoka, T. ^{[3
]}

Mukoyama, S. ^{[3
]}

Shimizu, H. ^{[4
]}

Horiuchi, S. ^{[5
]}

机构：

[1] Railway Tech Res Inst, 2-8-38 Hikari Cho, Kokubunji, Tokyo 1858540, Japan

[2] Kubotek Corp, Minami Ku, 56 Nishiakeda Cho, Higasikujo, Kyoto 6018045, Japan

[3] Furukawa Elect Corp Ltd, 6 Yawata Kaigandori, Ichihara, Chiba 2908555, Japan

[4] Mirapro Co Ltd, 1100 Anadaira Sutama Cho, Hokuto Shi, Yamanashi 4080111, Japan

[5] Publ Enterprise Bur Yamanashi Prefecture, 1-6-1 Marunouchi, Kofu, Yamanashi 4008501, Japan

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2016年 / 29卷 / 05期

关键词：

flywheel; energy storage system; solar power;

D O I：

10.1088/0953-2048/29/5/054002

中图分类号：

O59 [应用物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Energy storage systems are necessary for renewable energy sources such as solar power in order to stabilize their output power, which fluctuates widely depending on the weather. Since 'flywheel energy storage systems' (FWSSs) do not use chemical reactions, they do not deteriorate due to charge or discharge. This is an advantage of FWSSs in applications for renewable energy plants. A conventional FWSS has capacity limitation because of the mechanical bearings used to support the flywheel. Therefore, we have designed a superconducting magnetic bearing composed of a superconducting coil stator and a superconducting bulk rotor in order to solve this problem, and have experimentally manufactured a large scale FWSS with a capacity of 100 kWh and an output power of 300 kW. The superconducting magnetic bearing can levitate 4 tons and enables the flywheel to rotate smoothly. A performance confirmation test will be started soon. An overview of the superconducting FWSS is presented in this paper.

引用

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