Analysis of a High-Tc Superconducting Power Converting System

This paper presents the analysis of a high-Tc superconducting (HTS) power converting system, as well as its operational characteristics. The converting system can be used to charge and discharge a magnet made of series-connected pancake coils. The HTS converting system consists of two heaters, a pri...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2015-06, Vol.25 (3), p.1-4
Main Authors: Yoon, Yong Soo, Jo, Hyun Chul, Park, Young Gun, Lee, Jeyull, Yoon, Kyung Yong, Kim, Ho-Min, Chung, Yoon Do, Chu, Yong, Ko, Tae Kuk
Format: Article
Language:English
Subjects:
Coils
Copper
finite difference method
High-temperature superconductors
HTS pancake coil
HTS power converting system
Resistance
Superconducting magnetic energy storage
Superconducting magnets
Windings
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Summary:This paper presents the analysis of a high-Tc superconducting (HTS) power converting system, as well as its operational characteristics. The converting system can be used to charge and discharge a magnet made of series-connected pancake coils. The HTS converting system consists of two heaters, a primary copper winding, a secondary HTS winding, a series-connected HTS pancake coil, an iron core and a conventional copper load. In the experiments, the charging and discharging periods were 7.5 and 2 s, respectively. A partial region of the superconducting tape in a secondary HTS winding is switched to a normal region by a buried heating coil. To measure the converting-current with respect to the magnet flux changes, a hall sensor was installed at the center of the pancake coil. In this experiment, the charging-current and discharging-energy reached about 51.7 A and 36.8 J, respectively. The experimental results have been compared with theoretical predictions by using the finite difference method.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2015.2406296