Development of 1-T Class Force-Balanced Helical Coils Using REBCO Tapes
Development of 1-T Class Force-Balanced Helical Coils Using REBCO Tapes
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使用 REBCO 胶带开发 1-T 级力平衡螺旋线圈
DOI：
10.1109/tasc.2020.2971461
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发表时间：
2020
影响因子：
1.8
通讯作者：
Chikaraishi Hirotaka
中科院分区：
文献类型：
--
作者：
Kamada Hiroharu;Ninomiya Akira;Nomura Shinichi;Yagai Tsuyoshi;Nakamura Taketsune;Chikaraishi Hirotaka
提出了利用高温超导带材的力平衡螺旋线圈（FBC）作为超导储能（SMES）的可行性方案。虽然FBC可以最小化由电磁力引起的机械应力，但FBC具有三维复杂的螺旋绕组形状。因此，当高温超导带材同时承受拉伸应变和复杂弯曲应变时，超导线圈的临界电流会不可逆地降低。这项工作的目的是澄清的临界电流属性的REBCO磁带取决于施加复杂的机械应变，由于缠绕过程中，绕组配置和电磁力，通过开发的高温超导流化床。首先介绍了1-T级REBCO超导快堆的设计参数和绕线轨迹，并讨论了高温超导快堆在复杂单轴应变分布下的归一化临界电流。为了防止超导带材在缠绕过程中临界电流的降低，对螺旋缠绕机的运动进行了优化。
The authors proposed the concept of the force-balanced helical coils (FBC) using high-temperature superconducting (HTS) tapes as a feasibility option for superconducting magnetic energy storage (SMES). Although the FBC can minimize the mechanical stresses induced by the electromagnetic forces, the FBC has three-dimensional complex shapes of helical winding. Therefore, when the tensile strain and the complex bending strain simultaneously apply to the HTS tapes, the critical current of the HTS coils may decrease irreversibly. The objective of this work is to clarify the critical current property of REBCO tapes depending on the applying complex mechanical strain due to the winding process, the winding configuration and the electromagnetic forces through the development of the HTS-FBC. As a first, design parameters of 1-T class FBC using REBCO tapes and coil winding trajectory were introduced, and the authors discussed the normalized critical current of the HTS-FBC for complex uniaxial strain distribution. The authors also reported a development of a helical winding machine whose motion was optimized to prevent from decreasing the critical current of the HTS tapes during winding process.