铌钛中空超导电缆接头的直流特性分析  

DC distribution of hollow superconducting Nb Ti cable joint

作　　者：左佳欣 韩少斐[1] 杨文杰[1] 陈玉泉[1,2] 

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国科学院大学,北京1000490

出　　处：《低温与超导》2015年第6期37-41,共5页Cryogenics and Superconductivity

基　　金：超导材料力学性能测试设备研制(11327802)

摘　　要：超导电缆接头是超导磁体的关键部件之一,其性能直接影响超导磁体的运行稳定性。通过对超导电缆接头的直流特性分析,可以比较全面详实的了解接头中电流的分布规律,并据此设计超导接头的最佳连接方式和尺寸。分析采用的软件是OPERA 13.0,建立并计算了超导接头全尺寸简化模型、1/33分段股线模型和1/33分段单侧股线模型,3类共计48个模型。在以减少超导接头引起的电缆载流能力损失,即做到各股线电阻的尽可能一致,并将接头整体电阻控制在nΩ级为目标,通过48个模型的计算结果,确定了中空超导电缆接头的最佳几何参数,分析了影响接头电流分布的关键因素。Superconducting cable joint directly affects the performance of superconducting magnets,due to different resistances in cable strands,which causes parts of the strands to be not able to fully exploite. DC distribution analysis gives us a full scaled and detailed law of the current distributes in the joint. And the joint must keep the uniformity of strands resistance as far as possible,for reducing the superconducting cable current carrying capacity loss and local instabilities caused by joint. OPERA13. 0 was used for this simulation and dozens of full size model,one side single strand model and 1 /33 segment fine model were calculated,which could help to ascertain the influence of geometric parameters on DC distribution of joint.

关 键 词：超导接头 直流特性 中空超导电缆 

分 类 号：TM247[一般工业技术—材料科学与工程]