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http://dx.doi.org/10.9714/psac.2010.12.1.056

Fabrication of a BSCCO Magnet and its Operating Characteristics of Current Compensation in Persistent Current Mode  

Jo, Hyun-Chul (연세대학교 전기전자공학과)
Chang, Ki-Sung (연세대학교 전기전자공학과)
Jang, Jae-Young (연세대학교 전기전자공학과)
Kim, Hyung-Jun (연세대학교 전기전자공학과)
Chung, Yoon-Do (수원대학교 전기공학과)
Yoon, Yong-Soo (안산공과대학 전기과)
Ko, Tae-Kuk (연세대학교 전기전자공학과)
Publication Information
Progress in Superconductivity and Cryogenics / v.12, no.1, 2010 , pp. 56-60 More about this Journal
Abstract
Recently, many researches have been carried out for a high temperature superconducting (HTS) magnet which is advantageous in high critical current density and critical temperature. In HTS magnet, however, critical current is decreased by perpendicular magnetic field and persistent current is hard to maintain due to a low index value and high joint resistance compared with low temperature superconducting (LTS) magnet. In this paper, the HTS magnet using BSCCO wire was simulated through finite element method (FEM) and manufactured. we experimentally investigated operating characteristics of the compensating mode of the HTS magnet for current decay and made a comparison between persistent current mode and compensating mode. A feedback control unit was used to sustain current within specified ranges with defined upper and lower limits.
Keywords
BSCCO magnet; compensating mode; current decay; persistent mode;
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