Parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors

Eung Ro Lee; Dong Keun Park; Jae Young Jang; Ki Sung Chang; Yoon Do Chung; Duck Kwon Bae; Min Cheol Ahn; Yong Soo Yoon; Tae Kuk Ko

doi:10.1109/TASC.2010.2043087

Parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors

Eung Ro Lee, Dong Keun Park, Jae Young Jang, Ki Sung Chang, Yoon Do Chung, Duck Kwon Bae, Min Cheol Ahn, Yong Soo Yoon, Tae Kuk Ko

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A simultaneous quench has been one of challenging issues in a development of a superconducting fault current limiter (SFCL) as long as series-connected superconducting materials are not identical each other. This paper deals with a parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors (CC), as a preliminary step to develop its faculties for high voltage CC applications. An electrical and thermal analysis based on the finite element method (FEM) showed that decisive parameters were critical current and n-value. For verifying the analysis, two sets of series-connected samples from a batch of AMSC 344S, which is clad on stainless steel, were short-circuit tested. One set has quite different critical current, whereas the other similar ones. The analysis estimated the quench initiation characteristics among the samples in both cases. After the verification, the condition for simultaneous quench, i.e. allowable deviation of critical current and n-value, has been obtained.

Original language	English
Article number	5443662
Pages (from-to)	1207-1210
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	20
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2010.2043087
Publication status	Published - 2010 Jun

Bibliographical note

Funding Information:
Manuscript received October 19, 2009. First published April 05, 2010; current version published May 28, 2010. This work was supported by a Grant from the Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, Republic of Korea. This study was supported by the Korea Science and Engineering Foundation (KOSEF) Grant funded by the korea government (MEST 2009-0085369).

All Science Journal Classification (ASJC) codes

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

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10.1109/TASC.2010.2043087

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title = "Parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors",

abstract = "A simultaneous quench has been one of challenging issues in a development of a superconducting fault current limiter (SFCL) as long as series-connected superconducting materials are not identical each other. This paper deals with a parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors (CC), as a preliminary step to develop its faculties for high voltage CC applications. An electrical and thermal analysis based on the finite element method (FEM) showed that decisive parameters were critical current and n-value. For verifying the analysis, two sets of series-connected samples from a batch of AMSC 344S, which is clad on stainless steel, were short-circuit tested. One set has quite different critical current, whereas the other similar ones. The analysis estimated the quench initiation characteristics among the samples in both cases. After the verification, the condition for simultaneous quench, i.e. allowable deviation of critical current and n-value, has been obtained.",

author = "Lee, {Eung Ro} and Park, {Dong Keun} and Jang, {Jae Young} and Chang, {Ki Sung} and Chung, {Yoon Do} and Bae, {Duck Kwon} and Ahn, {Min Cheol} and Yoon, {Yong Soo} and Ko, {Tae Kuk}",

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AU - Bae, Duck Kwon

AU - Ahn, Min Cheol

AU - Yoon, Yong Soo

AU - Ko, Tae Kuk

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N2 - A simultaneous quench has been one of challenging issues in a development of a superconducting fault current limiter (SFCL) as long as series-connected superconducting materials are not identical each other. This paper deals with a parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors (CC), as a preliminary step to develop its faculties for high voltage CC applications. An electrical and thermal analysis based on the finite element method (FEM) showed that decisive parameters were critical current and n-value. For verifying the analysis, two sets of series-connected samples from a batch of AMSC 344S, which is clad on stainless steel, were short-circuit tested. One set has quite different critical current, whereas the other similar ones. The analysis estimated the quench initiation characteristics among the samples in both cases. After the verification, the condition for simultaneous quench, i.e. allowable deviation of critical current and n-value, has been obtained.

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Parameter determination of a condition for simultaneous quench in series-connected YBCO coated conductors

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