液氢温区超导电缆本体设计与短样试验  

Design and experiment of superconducting cable sample at the temperature of liquid hydrogen

作　　者：李振明 崔亚林 刘伟 靖立伟[2,3] 邱清泉[2,3] 宋乃浩[2,3] 丘明 

机构地区：[1]中国电力科学研究院有限公司储能与电工新技术研究所,北京100192 [2]中国科学院应用超导重点实验室,北京100190 [3]中国科学院电工研究所,北京100190

出　　处：《低温与超导》2018年第1期54-58,共5页Cryogenics and Superconductivity

基　　金：国家电网公司总部重点科技项目"氢电混合超导输电技术可行性研究"(DG71-16-004)资助

摘　　要：对比分析了多种超导材料在液氢温区的基本特性与价格,Mg B2较适宜于氢电混输电缆;从骨架、导体层与主绝缘层等方面开展了110k V/4k A等级Mg B2超导电缆本体设计,并绕制了一根50cm长超导电缆短样;在传导冷却条件下,该电缆短样在30K^36K温区的临界电流为450A。The properties and price of several superconducting materials were compared and analyzed, and MgB2 was fitter for the combined transmission system of liquid hydrogen and electrical power. The former, conductor layers and insulation layers were designed for a 110 kV/4 kA superconducting cable made of MgB2 superconductors. A superconducting cable sample （50 cm in length） was manufactured and its critical current was 450 A at the temperature range from 30K to 60K by use of conduction cooling.

关 键 词：氢电混输 超导电缆 液氢温区 本体设计 载流试验 

分 类 号：TM247[一般工业技术—材料科学与工程]