High Temperature Superconductor Current Leads for WENDELSTEIN 7-X and JT-60SA
High Temperature Superconductor Current Leads for WENDELSTEIN 7-X and JT-60SA
复制标题
适用于 WENDELSTEIN 7-X 和 JT-60SA 的高温超导体电流引线
DOI：
10.1109/tasc.2009.2019550
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发表时间：
2009
影响因子：
1.8
通讯作者：
R. Lietzow
中科院分区：
文献类型：
--
作者：
W. Fietz;R. Heller;A. Kienzler;R. Lietzow
卡尔斯鲁厄研究中心负责设计、建造和测试两个聚变实验的高温超导体（HTS）电流引线，即仿星器 WENDELSTEIN 7-X (W7-X) 和卫星托卡马克 JT-60SA。 W7-X 目前正在马克斯普朗克等离子体物理研究所格赖夫斯瓦尔德分所建造，由 50 个非平面线圈和 20 个平面线圈组成，最大导体电流为 17.6 kA。总共需要 14 根额定电流为 14 kA 的电流引线，这些引线倒置安装，热端位于底部。在日本和欧盟之间的更广泛方法协议的框架内以及ITER项目的同时，卫星托卡马克项目JT-60SA已于2006年达成一致。JT-60SA的磁体系统由18个环形场线圈、4个中央螺线管模块和7个极向场线圈组成。总共需要 26 根安装在垂直、正常位置的引线。 W7-X 和 JT-60SA 将使用通用的基本设计，以适应机器的特殊需求。所有电流引线均为 Cu-HTS 二元类型。 HTS 部分涵盖 4.5 K 至 60 K 之间的范围，仅通过 4.5 K 端的热传导进行冷却。 Cu 热交换器采用 50 K He 冷却，温度范围涵盖 60 K 至室温。本文介绍了 W7-X 和 JT-60SA 的 HTS 当前主导开发的状态。
Forschungszentrum Karlsruhe has taken over the responsibility for the design, construction and testing of the High Temperature Superconductor (HTS) current leads for two fusion experiments, i.e. the stellarator WENDELSTEIN 7-X (W7-X) and the satellite tokamak JT-60SA. W7-X is presently under construction at the Greifswald branch of the Max-Planck-Institute for Plasma Physics and consists of 50 non-planar and 20 planar coils with a maximum conductor current of 17.6 kA. In total 14 current leads are required with a nominal current of 14 kA that are mounted upside down with the warm end at the bottom. In the frame of the Broader Approach Agreement between Japan and the EU and concomitantly to the ITER project, the satellite tokamak project JT-60SA has been agreed in 2006. The magnet system of JT-60SA consists of 18 toroidal field coils, 4 central solenoid modules and 7 poloidal field coils. In total 26 leads mounted in vertical, normal position are required. For W7-X and JT-60SA a common basic design will be used which will be adapted to the special needs of the machines. All current leads will be of the Cu-HTS binary type. The HTS part covers the range between 4.5 K and 60 K and is cooled by heat conduction from the 4.5 K end, only. The Cu heat exchanger is cooled with 50 K He and covers the range between 60 K and room temperature. The paper describes the status of the HTS current lead development for W7-X and JT-60SA.