Analysis of terminal heat loss of 10kV/6000A high temperature superconducting cable

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Hu, Lei^1 ; Ma, Tao^1 ; Dai, Shaotao^1 ; Zhang, Teng^1 ; Wang, Bangzhu^1

RandD Center for Applied Superconducting Technology, Beijing Jiao Tong University, No.3 Shangyuancun, Haidian District, Beijing

100044, China^1

关键词: Calculation results;    Cryogenic system;    High temperature superconducting cables;    Low temperature environment;    Low temperatures;    Optimal structures;    Stable operation;    Terminal systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/7/072003/pdf
DOI  :  10.1088/1757-899X/490/7/072003

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

HTS power cable terminal is an afflux unit of transition from superconducting cable operating at low temperature to high voltage bus and outlet of refrigerant in normal temperature. In order to obtain the low-temperature environment for the stable operation of 10kV/6000A superconducting cables, we designed a terminal system. The terminal is refrigerated by circulating liquid nitrogen, and the heat loss of the terminal is calculated to obtain. The current leads in the terminal are optimized and the optimal structure lead dimensions are obtained and finally it is verified by experiments. The results show that the leakage heat value of the terminal is about 590W, and the current lead is the most important leakage heat source. The calculation results provide a basis for the design and further optimization of the HTS cable terminal cryogenic system.