超导电力设备出线端子的低温绝缘设计  

The low temperature insulation design for current leads of superconducting power apparatus

作　　者：李帅波 孟毓 谢伟 李艳 蔡龙晟 王子豪[3] Li Shuaibo;Meng Yu;Xie Wei;Li Yan;Cai Longsheng;Wang Zihao(Shanghai Electric Power Design Institute Co.,Ltd,Shanghai 200025,China;State Grid Shanghai Electric Power Company,Shanghai 200122,China;Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海电力设计院有限公司,上海200025 [2]国网上海市电力公司,上海200122 [3]上海交通大学,上海200240

出　　处：《低温与超导》2020年第7期33-38,共6页Cryogenics and Superconductivity

基　　金：国家电网公司科技项目(520940180014)资助。

摘　　要：出线端子的设计是研制超导电力设备一个重要环节,需满足低温环境下电绝缘要求,也要尽量降低热损耗对制冷系统效率的影响。采用有限元法进行计算分析,并通过实验验证仿真方法。构建出线端子模型,计算获得出线端子工作时温度分布、热损情况以及场强分布,研究讨论了出线端子热损以及场强分布的影响因素,提出相应的优化建议。Current leads design is an important part of superconducting power devices.It is necessary to meet the electrical insulation requirements at low temperature,as well as to minimize the influence of heat loss on the efficience of cryogenic system.Finite element analysis software was used to do the calculation and simulation analysis,and the simulation method was verified by experiment.Afterwards,a superconducting power apparatus current leads model was built using FEM software.Then outlet temperature distribution,heat loss as well as electric-field distribution could be worked out from simulation.The factors to effect the heat loss of current leads and electrical field distribution were discussed and studied.The optimized methods were proposed.

关 键 词：超导电力设备 出线端子 热损 场强分布 有限元数值仿真 

分 类 号：TM21[一般工业技术—材料科学与工程]