Experiment of a 100Wh-Class Power Storage System using High-Tc Superconducting Magnetic Bearing
Experiment of a 100Wh-Class Power Storage System using High-Tc Superconducting Magnetic Bearing
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高温超导磁力轴承100Wh级储能系统实验
DOI：
10.1007/978-4-431-68266-0_282
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Norio Ito
中科院分区：
文献类型：
--
作者：
H. Higasa;Ishikawa Fumihiko;N. Kawauchi;S. Yokoyama;Shiro Nakamura;H. Imaizumi;Norio Ito
超导磁轴承的旋转损耗很低。因此，它很可能与飞轮相结合形成一个高效的储能系统。利用高温超导磁轴承研制了100Wh级飞轮式储能系统。我们用MPMG法制备了Y基氧化物超导体和Pr基磁轴承用永磁体。飞轮的最大直径为250 mm，重量为27.5kgf。在标称转速为17000rpm时，飞轮的储能为0.2MJ(=55Wh)。通过测量液氮的蒸汽量，得到标称转速下超导磁轴承损耗为0.6W。
A superconducting magnetic bearing exhibits low rotational loss. Accordingly it is likely to form an efficient power storage system in combination with a flywheel. We developed a 100Wh-class flywheel type power storage system using high-Tc superconducting magnetic bearing. We prepared Y-based oxide superconductors with MPMG method and Pr-based permanent magnets for the magnetic bearing. The flywheel has the maximum diameter of 250mm and weight of 27.5kgf. A storage energy of the flywheel is 0.2MJ(=55Wh) at nominal speed of 17000rpm.In the experimental result,the superconducting magnetic bearing loss of 0.6W at nominal speed was obtained by a vapor quantity measurement of liquid N2.