Analysis of Eddy-Current Loss and its Reduction in a Conduction-Cooled HTS Magnet

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Ji, Kai^1 ; Long, Wenfeng^1 ; He, Jinping^1 ; Zheng, Jun^1

National Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan Institute of Marine Electric Propulsion, Wuhan, China^1

关键词: Conduction cooled;    Conduction-cooling;    Cooling structures;    Cryogenic cooling system;    Eddy current-loss;    Electromagnetic analysis;    Environmental-friendly;    HTS magnet;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/4/042126/pdf
DOI  :  10.1088/1755-1315/300/4/042126

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Since conduction cooling system is environmental friendly and easy operating, the conduction-cooled method is widely used in cryogenic cooling system of higherature superconducting (HTS) magnet. The eddy-current losses are generated in the cooling structures when HTS magnet is charging and discharging or the current in the magnet is alternating. In this paper, a 3D model of analyzing the eddy-current loss was built. The eddy-current losses of a HTS magnet with different cooling structures were calculated. Thermal analysis of the HTS magnet was carried out together with the electromagnetic analysis. The effect of the cooling structures' geometric parameters on the eddy-current losses was discussed. The methods of reducing the eddy-current loss were proposed. The analysis results demonstrate that the optimization of the geometric parameters would greatly benefit the reduction of the eddy-current losses.