110kV冷绝缘高温超导电缆本体绝缘设计  

Insulation design of the 110kV cold dielectric high temperature superconducting cable

作　　者：夏占军[1,2] 郭立杰[1,2] 诸嘉慧[2] 

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]中国电力科学研究院电工与新材料研究所,北京100192

出　　处：《低温与超导》2011年第12期1-4,9,共5页Cryogenics and Superconductivity

基　　金：国家电网公司科研项目(sgkjkj[2010]374)<110kV冷绝缘超导电缆关键技术研究>

摘　　要：对国内第一根基于YBCO涂层导体的110kV冷绝缘高温超导(CD HTS)电缆本体绝缘进行了设计。根据冷绝缘HTS电缆的结构特点,通过分析不同绝缘材料的介电特性,应用电场有限元数值分析模型和理论模型,计算了超导电缆本体电场分布,研究了超导电缆主绝缘厚度与局部放电起始场强的定量化关系,最后给出了110kV冷绝缘HTS电缆主绝缘材料与厚度的设计方案。In this paper, we designed the insulation of the first 110kV cold dielectric （CD） cable using YBCO coated conductor in China. According to the structure of the CD HTS cable, dielectric properties of different insulation materials were analyzed, electric - field distribution of the HTS cable was calculated by the finite element numerical analysis method, the quantitative relationships between insulation thickness and the partial discharge inception stress were studied based on the theoretical model. Finally, a design proposal about the insulation materials and its thickness for of the 110kV CD HTS cable was given.

关 键 词：冷绝缘高温超导电缆 电场分布 有限元分析法 局部放电 绝缘设计 

分 类 号：TM249.7[一般工业技术—材料科学与工程]