Characteristics of a HTS persistent current switch system considering the n-value

Yong Soo Yoon, Ho Min Kim, Hyoongku Kang, Duck Kweon Bae, Min Cheol Ahn, Seong Eun Yang, Dong Keun Park, Tae Kuk Ko

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This paper deals with characteristics of a High-Tc superconductor (HTS) persistent current switch (PCS) system considering the n-value. I also present its operational characteristics through experiments. A HTS PCS system mainly consists of a PCS, a HTS magnet load, and a magnet power supply (MPS). The HTS magnet load was made-up of two double pancake coils in series. In order to measure the persistent current with respect to the magnet flux changes, a hall sensor was installed at the center of the magnet load. In the experiments, the initial current dropped rapidly in the persistent current mode. In order to analyze current decay, we introduced a new electrical equivalent model considering the n-value. Experimental results of the HTS PCS system have been compared with the theoretical results. It has been concluded that the characteristics of initial current decay were mainly determined by the voltages generated in the pancake load due to n-value and joint resistance.

Original languageEnglish
Article number1643199
Pages (from-to)1745-1748
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2
Publication statusPublished - 2006 Jun


All Science Journal Classification (ASJC) codes

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

Cite this

Yoon, Y. S., Kim, H. M., Kang, H., Bae, D. K., Ahn, M. C., Yang, S. E., Park, D. K., & Ko, T. K. (2006). Characteristics of a HTS persistent current switch system considering the n-value. IEEE Transactions on Applied Superconductivity, 16(2), 1745-1748. [1643199].