Experimental analysis of flux pump for compensating current decay in the persistent current mode using HTS magnet

Hyun Chul Jo, Seong Eun Yang, Young Jae Kim, Ki Sung Chang, Jae Young Jang, Yong Soo Yoon, Yoon Do Chung, Ho Min Kim, Tae Kuk Ko

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3 Citations (Scopus)

Abstract

The current decay of High temperature superconducting (HTS) magnet is larger than that of low temperature superconducting (LTS) magnet due to its lower n-value and higher joint resistance. To compensate the current decay in HTS magnet, various power supplies have been required. From this reason, as an option of power supply for HTS magnet, we have proposed a flux pump with heater trigger switch. In this paper, a performance and experimental analysis on a transformer type flux pump were presented. Characteristics of pumping rates with respect to change in the temperature and sequential timing of the heater-triggered switch were investigated. As well as, the pumping rates were carried out in the charging mode. Furthermore, the compensating actions were carried out in the persistent current mode using a feedback control unit.

Original languageEnglish
Article number5439743
Pages (from-to)1693-1696
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume20
Issue number3
DOIs
Publication statusPublished - 2010 Jun

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Jo, H. C., Yang, S. E., Kim, Y. J., Chang, K. S., Jang, J. Y., Yoon, Y. S., Chung, Y. D., Kim, H. M., & Ko, T. K. (2010). Experimental analysis of flux pump for compensating current decay in the persistent current mode using HTS magnet. IEEE Transactions on Applied Superconductivity, 20(3), 1693-1696. [5439743]. https://doi.org/10.1109/TASC.2010.2040474