Experimental method for determining the recovery of superconducting fault current limiter using coated conductor in a power system

Seong Eun Yang, Min Cheol Ahn, Dong Keun Park, Ki Sung Chang, Bok Yeol Seok, Ho Myung Chang, Jung Wook Park, Tae Kuk Ko

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Research on resistive superconducting fault current limiters (SFCLs) using coated conductor(CC) has now been advanced from development to commercialization stage. It is necessary to investigate the recovery characteristics of SFCL for effective application to power system. In Korea, if the SFCL is directly inserted to distribution power grid, it must be recovered in 0.5 s after fault. Since temperature sensor is not accurate in liquid nitrogen bathe and temperature of CC, after falling down below 92 K, is impossible to be measured by electrical method, it is difficult to measure the temperature of SFCL during the recovery of YBCO CC. In this paper, an experimental method was proposed to determine the recovery of resistive SFCLs. Under over-current for 0.1 s, maximum temperature of high temperature superconductor (HTS) wire increased to 300 K; after a few seconds, recovery time was measured by increasing DC current. With these experiments, thermal relaxation time required for the temperature of CC to decrease to 77 K was analyzed.

Original languageEnglish
Article number4505528
Pages (from-to)652-655
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume18
Issue number2
DOIs
Publication statusPublished - 2008 Jun 1

Fingerprint

Superconducting fault current limiters
conductors
recovery
Recovery
Temperature
High temperature superconductors
Temperature sensors
Liquid nitrogen
commercialization
temperature
Korea
Relaxation time
temperature sensors
falling
liquid nitrogen
high temperature superconductors
Wire
relaxation time
direct current
grids

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Yang, Seong Eun ; Ahn, Min Cheol ; Park, Dong Keun ; Chang, Ki Sung ; Seok, Bok Yeol ; Chang, Ho Myung ; Park, Jung Wook ; Ko, Tae Kuk. / Experimental method for determining the recovery of superconducting fault current limiter using coated conductor in a power system. In: IEEE Transactions on Applied Superconductivity. 2008 ; Vol. 18, No. 2. pp. 652-655.
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Experimental method for determining the recovery of superconducting fault current limiter using coated conductor in a power system. / Yang, Seong Eun; Ahn, Min Cheol; Park, Dong Keun; Chang, Ki Sung; Seok, Bok Yeol; Chang, Ho Myung; Park, Jung Wook; Ko, Tae Kuk.

In: IEEE Transactions on Applied Superconductivity, Vol. 18, No. 2, 4505528, 01.06.2008, p. 652-655.

Research output: Contribution to journalArticle

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