EAST新超导母线稳定性分析  

Stability analysis of the new superconducting bus-lines in EAST

作　　者：邓威[1] 奚维斌[1] 朱海生[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《低温与超导》2015年第3期37-41,共5页Cryogenics and Superconductivity

基　　金：中国科学院大科学装置维修项目(Y35ETB1301)资助

摘　　要：EAST装置超导母线电流传输线的核心部件是13对Nb Ti材料CICCs,其作用是连接超导磁体系统和高温超导电流引线,为磁体系统的运行提供馈电通道和失超状态下能量的释放通道。超导母线的稳定性直接影响了电流传输线运行的可靠性,同时还关系到超导磁体系统的安全性,需要对其进行严谨的研究。为了研究EAST新超导母线的稳定性,分别利用数学模型和GANDALF程序对超导母线的温度裕度和能量裕度进行了计算分析。计算结果表明由于超导母线的背景磁场很小,因此其稳定性要远高于超导磁体线圈的。该文的结果将为EAST新超导母线的运行提供参考。The superconducting（ SC） bus-lines linking the SC magnet coils and the high temperature SC current leads consist of 13 pairs of Nb Ti cable in conduit conductors. As the current feeders for the SC magnet coils and energy discharge channels when quench happens in the SC magnet coils,the stability of the SC bus-lines is extremely important. For the study of the stability of the new SC bus-lines in EAST,the temperature margin and the energy margin of the SC bus-lines were calculated by mathematical model and GANDALF codes respectively. The stability of the new SC bus-lines is much higher than that of the SC magnet coils due to much lower background magnetic field.

关 键 词：EAST 超导母线 温度裕度 能量裕度 

分 类 号：TB651[一般工业技术—制冷工程]