Fabrication and experimental analysis of 6.6 kV/100 a class single-phase superconducting fault current controller with superconducting DC reactor coil

Jiho Lee, Woo Seung Lee, Seokho Nam, Jinsub Kim, Seungje Lee, Min Cheol Ahn, Young Gun Park, Seunghyun Song, Jeyull Lee, Hongwoo Jin, Hyungjun Kim, Sehyun Kim, Kyeon Hur, Tae Kuk Ko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, we present the fabrication and experimental analysis of a 6.6 kV/100 A class superconducting fault current controller (SFCC) as a novel prototype fault current limiter. Recently, the integration of distributed generations into a grid has been issued due to increased power demand and their lower environmental impacts. The addition of distributed generators can increase the level of the fault current in the grid. To resolve the issue of increased fault current level, we propose a SFCC consisting of a superconducting coil, full-bridge thyristor rectifier, and control unit. The proposed SFCC can be described as a combination of a thyristor type solid-state breaker and a superconducting DC reactor coil. The inductance of the superconducting coil, which is about 10.4 mH, reduces the fault current amplitude. After the half cycle, through the control of the thyristors' phase angle, SFCC can control the level of the fault current to a proper level. In this paper, we present the design and fabrication of the superconducting coil, a rectifier, and a thyristor control unit. Based on the results of short circuit tests, which simulated the power grid, we expect that SFCC and its behavior can be helpful in protecting power grids from unpredictable fault currents.

Original languageEnglish
Article number6966739
JournalIEEE Transactions on Applied Superconductivity
Volume25
Issue number3
DOIs
Publication statusPublished - 2015 Jun 1

Fingerprint

Electric fault currents
controllers
coils
direct current
reactors
Fabrication
Controllers
fabrication
thyristors
Thyristors
grids
rectifiers
Fault current limiters
circuit breakers
Distributed power generation
short circuits
Inductance
Short circuit currents
Environmental impact
inductance

All Science Journal Classification (ASJC) codes

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

Cite this

Lee, Jiho ; Lee, Woo Seung ; Nam, Seokho ; Kim, Jinsub ; Lee, Seungje ; Ahn, Min Cheol ; Park, Young Gun ; Song, Seunghyun ; Lee, Jeyull ; Jin, Hongwoo ; Kim, Hyungjun ; Kim, Sehyun ; Hur, Kyeon ; Ko, Tae Kuk. / Fabrication and experimental analysis of 6.6 kV/100 a class single-phase superconducting fault current controller with superconducting DC reactor coil. In: IEEE Transactions on Applied Superconductivity. 2015 ; Vol. 25, No. 3.
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Fabrication and experimental analysis of 6.6 kV/100 a class single-phase superconducting fault current controller with superconducting DC reactor coil. / Lee, Jiho; Lee, Woo Seung; Nam, Seokho; Kim, Jinsub; Lee, Seungje; Ahn, Min Cheol; Park, Young Gun; Song, Seunghyun; Lee, Jeyull; Jin, Hongwoo; Kim, Hyungjun; Kim, Sehyun; Hur, Kyeon; Ko, Tae Kuk.

In: IEEE Transactions on Applied Superconductivity, Vol. 25, No. 3, 6966739, 01.06.2015.

Research output: Contribution to journalArticle

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