10 kV三相同轴高温超导电缆力学性能分析  

Mechanical analysis of three-phase coaxial 10 kV HTS power cable

作　　者：冯斌 丁开忠[1] 诸嘉慧[3] 曹京荥[4] 刘佳鑫 董育军 Feng Bin;Ding Kaizhong;Zhu Jiahui;Cao Jingying;Liu Jiaxin;Dong Yujun(Institute of Plasma Physics,HFIPS,CAS,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;China Electric Power Research Institute,Beijing 100192,China;State Grid Jiangsu Electric Power Co.,Ltd,Nanjing 210000,China;State GridLiaoning Electric Power Co.,Ltd.,Shenyang 110006,China)

机构地区：[1]中国科学院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026 [3]中国电力科学研究院,北京100192 [4]国网江苏省电力有限公司,南京210000 [5]国网辽宁省电力有限公司,沈阳110006

出　　处：《低温与超导》2023年第2期34-40,共7页Cryogenics and Superconductivity

基　　金：国家电网科技攻关项目(DG71-20-006)资助。

摘　　要：针对电缆示范工程的并网实验要求,以10 kV/1 kA三相同轴高温超导电缆为研究对象,重点研究了超导电缆的弯曲力学特性。运用了有限元分析软件建立其三维模型,模拟超导电缆受到不同弯曲半径下的应力和应变分布,再结合临界电流密度,计算出临界电流。在此基础上,对电缆样件进行弯曲实验,测量出不同弯曲半径下的临界电流。研究结果表明,该力学模型可以准确得出超导电缆的临界弯曲半径,有效保障电缆运行的安全性与稳定性。According to the requirements of the grid connection experiment of the cable demonstration project, the bending mechanical characteristics of the superconducting cable were mainly studied with 10 KV/1 KA three-phase coaxial HTS cable as the research object. The finite element analysis software was used to establish its three-dimensional model to simulate the stress and strain distribution of the superconducting cable under different bending radii, and the critical current was calculated by combining the critical current density. On this basis, the bending experiment of the cable sample was carried out to measure the critical current under different bending radii. The research results show that the critical bending radius of the superconducting cable can be accurately obtained by the mechanical model, and the safety and stability of the cable operation can be effectively guaranteed.

关 键 词：力学性能 超导电缆 临界电流 高温超导 

分 类 号：TM249.7[一般工业技术—材料科学与工程]