Uniform current distribution conductor of HTS power cable with variable tape-winding pitches
Uniform current distribution conductor of HTS power cable with variable tape-winding pitches
复制标题
变绕带节距高温超导电力电缆均匀电流分布导体
DOI：
10.1109/77.783532
复制
发表时间：
1999
影响因子：
1.8
通讯作者：
Y. Iwata
中科院分区：
文献类型：
--
作者：
S. Mukoyama;K. Miyoshi;H. Tsubouti;T. Yoshida;M. Mimura;N. Uno;M. Ikeda;H. Ishii;S. Honjo;Y. Iwata
在多层导体中，内层比外层具有更高的阻抗。因此，电流集中在外层。我们早期的研究表明，通过使每一层的电流均匀，其交流损耗降低到十分之一。从这一角度出发，尝试通过逐层调整高温超导带材的绕组间距来实现均匀的电流分布。制作了1米长的导线，其中内层的绕组间距比外层的长。实验结果表明，流经各层的电流基本相同，且这种导体的交流损耗比不均匀电流分布的导体低。
In the multilayer conductor, the inner layers have higher impedance than the outer layers. As a result, the current concentrates in the outer layers. Our early study showed that its AC losses were reduced to one-tenth by making the current of each layer uniform. From such a point of view, a trial to realize the uniform current distribution was made by adjusting the winding pitches of high-temperature superconducting (HTS) tapes layer by layer. A 1 m long conductor was fabricated, where the inner layer had longer winding pitch than the outer layer. Experimental results showed that the currents flowing in individual layers were almost the same and that this conductor had lower AC losses than the nonuniform current distribution conductor.