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

Since conduction cooling system is environmental friendly and easy operating, the conduction-cooled method is widely used in cryogenic cooling system of high-temperature superconducting (HTS) magnet. The eddy-current losses are generated in the cooling structures when HTS magnet is charging and disc...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 300; no. 4; pp. 42126 - 42133
Main Authors Ji, Kai, Long, Wenfeng, He, Jinping, Zheng, Jun
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2019
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Summary:Since conduction cooling system is environmental friendly and easy operating, the conduction-cooled method is widely used in cryogenic cooling system of high-temperature 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.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/300/4/042126