Abstract:

In order to test the performance of large superconducting conductors sample for fusion engineering, a set of advanced superconducting conductor test facility, a magnet system, producing a back ground magnetic field of 13T with the bore of 0.6m, was designed. The magnet system consists of 6 layers of 12 split superconducting coils which have a structure of conventional solenoids wound by superconducting material of NbTi, Nb₃Sn and YBCO, from outside to inside, respectively. The maximum of 13.22T background magnetic field is produced in the range of 500mm of the test area, and the homogeneity is no less than 95%. The main design parameters of the magnet coils are introduced in detail, the electromagnetic and the structural analysis is completed with the software based on finite element method, which indicates that the design is reasonable and reliable and meets the requirements of the conductor testing facility.

Key words: Fusion engineering, Superconducting conductor, Magnet system, Test facility

摘要：

针对聚变工程大型超导导体样品在高场下的性能测试需求，设计了内径0.6m、磁场13T的背景磁体系统。磁体系统由6层12个分离式超导线圈组成，线圈采用常规的螺线管结构，由外至内分别使用NbTi、Nb₃Sn和YBCO三种超导材料绕制而成；在直径500mm的测试区域范围内产生最高达13.22T的背景磁场，均匀性不低于95%。介绍了磁体线圈主要设计参数，用有限元软件完成电磁、结构分析。结果表明，设计合理可靠，能够满足导体测试装置的需求。

关键词: 聚变工程, 超导导体, 磁体系统, 测试装置