Force-balanced coil for large scale SMES
Force-balanced coil for large scale SMES
复制标题
适用于大型 SMES 的力平衡线圈
DOI：
10.1109/77.783308
复制
发表时间：
1999
影响因子：
1.8
通讯作者：
R. Shimada
中科院分区：
文献类型：
--
作者：
S. Nomura;T. Osaki;Junji Kondoh;H. Tsutsui;S. Tsuji;Y. Sato;R. Shimada
在大型超导储能系统中，高磁场和高电流产生的巨大电磁力是一个严重的问题。为了解决这一问题，我们提出了一种力平衡线圈（FBC）的概念应用于超导磁储能系统。FBC平衡定心力和环向力，两者都在长径方向上施加。此外，对于大纵横比超导线圈的优化，我们提出了一个应力平衡线圈（SEC）的概念，改进FBC的概念，平衡在线圈的鼻子部分产生的磁场达到最大值的磁压力。将环形磁场线圈（TFC）和FBC与SEC相比，后者可以降低线圈应力，并以较短的导体长度和/或较低的磁场获得较大的储能。
In large scale SMES, huge electromagnetic force caused by high magnetic fields and coil currents is a serious problem. In order to solve this problem, we propose a concept of force-balanced coil (FBC) applied to the SMES. The FBC balances the centering force with the hoop force, both of which are exerted in the major radius direction. Moreover, for the optimization of large aspect ratio superconducting coils, we propose a stress-balanced coil (SEC) concept, improving the concept of FBC, which balances magnetic pressures at the coil nose part where the produced magnetic field reaches its maximum value. Comparing the toroidal magnetic field coil (TFC) and FBC with SEC, the last can reduce coil stresses and obtain large stored energy with shorter length conductors and/or lower magnetic fields.