Improvement in Stability and Operating Characteristics of HTS Coil Using MIT Material

Hyung Wook Kim, Jin Hur, Seog Whan Kim, Seok Beom Kim, Rock Kil Ko, Dong Woo Ha, Ho Min Kim, Jin Hong Joo, Young Sik Jo

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This paper proposes a new method of achieving electrical stability and controllability of a high-temperature superconductor (HTS) coil. The proposed method applied a material with a metal-insulator transition (MIT) property to the turn-to-turn resistance of an HTS coil. As a result, the turn-to-turn resistance remained at the insulator level in the normal state, thus removing delay during charging and discharging. During transient state, the turn-to-turn resistance dropped to the metal level, and current bypass occurs similar to that in a noinsulation coil, thus preventing the coil from burning out. The validity of the MIT characteristic and the proposed method were verified through experiments.

Original languageEnglish
Article number7822904
JournalIEEE Transactions on Applied Superconductivity
Volume27
Issue number4
DOIs
Publication statusPublished - Jun 1 2017

Fingerprint

Metal insulator transition
High temperature superconductors
high temperature superconductors
coils
insulators
Controllability
metals
Metals
bypasses
controllability
charging
Experiments

Keywords

  • 2G HTS coil
  • controllability
  • current bypass
  • electrical stability
  • metal-insulator transition
  • no insulation
  • quench

ASJC Scopus subject areas

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

Cite this

Improvement in Stability and Operating Characteristics of HTS Coil Using MIT Material. / Kim, Hyung Wook; Hur, Jin; Kim, Seog Whan; Kim, Seok Beom; Ko, Rock Kil; Ha, Dong Woo; Kim, Ho Min; Joo, Jin Hong; Jo, Young Sik.

In: IEEE Transactions on Applied Superconductivity, Vol. 27, No. 4, 7822904, 01.06.2017.

Research output: Contribution to journalArticle

Kim, Hyung Wook ; Hur, Jin ; Kim, Seog Whan ; Kim, Seok Beom ; Ko, Rock Kil ; Ha, Dong Woo ; Kim, Ho Min ; Joo, Jin Hong ; Jo, Young Sik. / Improvement in Stability and Operating Characteristics of HTS Coil Using MIT Material. In: IEEE Transactions on Applied Superconductivity. 2017 ; Vol. 27, No. 4.
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