The Impact of critical current inhomogeneity in HTS coated conductors on the quench process for SFCL application

Fei Liang, Weijia Yuan, Min Zhang, Zhenyu Zhang, Sriharsha Venuturumilli, Jay Patel

Research output: Contribution to journalArticle

  • 2 Citations

Abstract

Growing electricity demand from a range of sources with higher loads and the industry structural changes open the possibility of more frequent and larger fault currents producible in liver power grids. Traditional solutions to the fault have difficulties in satisfying the requirement of the new power grid requirement due to many factors, such as high cost and additional impact to power grid in normal loading condition, which leads to the research for an efficient alternative solution of interest to both academia and industry: Superconducting fault current limiter (SFCL). Critical current Ic is used to describe the maximum current that a superconductor can transport and is one of the most important parameters to be considered while designing a SFCL. Guaranteeing the homogeneous distribution of the critical current density flowing in a superconductor is not possible due to manufacturing process limitations. In this paper, the impact of critical current inhomogeneity of coated high temperature superconductors (HTSs) during the quench process is studied experimentally. The results show that both the amount of Ic degradation and the size of Ic degraded segments have a great impact on the maximum temperature generated in the quench process of HTSs when the prospective fault current is low ( 1.13Ic to 1.51Ic. Higher amount of localized Ic degradation allows higher maximum temperatures under low voltage fault. Additionally, smaller Ic degraded segment allows higher maximum temperatures.

LanguageEnglish
Article number7390034
JournalIEEE Transactions on Applied Superconductivity
Volume26
Issue number3
Early online date22 Jan 2016
DOIs
StatusPublished - 1 Apr 2016

Fingerprint

Superconducting fault current limiters
High temperature superconductors
Critical currents
high temperature superconductors
critical current
inhomogeneity
Electric fault currents
conductors
Superconducting materials
grids
Critical current density (superconductivity)
Degradation
industries
degradation
Liver
Temperature
requirements
Industry
low currents
Electricity

Keywords

  • critical current
  • critical current degradation
  • inhomogeneity
  • quench
  • SFCL

Cite this

The Impact of critical current inhomogeneity in HTS coated conductors on the quench process for SFCL application. / Liang, Fei; Yuan, Weijia; Zhang, Min; Zhang, Zhenyu; Venuturumilli, Sriharsha; Patel, Jay.

In: IEEE Transactions on Applied Superconductivity, Vol. 26, No. 3, 7390034, 01.04.2016.

Research output: Contribution to journalArticle

@article{740ec038a3ef4952a78405a267bb9a4f,
title = "The Impact of critical current inhomogeneity in HTS coated conductors on the quench process for SFCL application",
abstract = "Growing electricity demand from a range of sources with higher loads and the industry structural changes open the possibility of more frequent and larger fault currents producible in liver power grids. Traditional solutions to the fault have difficulties in satisfying the requirement of the new power grid requirement due to many factors, such as high cost and additional impact to power grid in normal loading condition, which leads to the research for an efficient alternative solution of interest to both academia and industry: Superconducting fault current limiter (SFCL). Critical current Ic is used to describe the maximum current that a superconductor can transport and is one of the most important parameters to be considered while designing a SFCL. Guaranteeing the homogeneous distribution of the critical current density flowing in a superconductor is not possible due to manufacturing process limitations. In this paper, the impact of critical current inhomogeneity of coated high temperature superconductors (HTSs) during the quench process is studied experimentally. The results show that both the amount of Ic degradation and the size of Ic degraded segments have a great impact on the maximum temperature generated in the quench process of HTSs when the prospective fault current is low ( 1.13Ic to 1.51Ic. Higher amount of localized Ic degradation allows higher maximum temperatures under low voltage fault. Additionally, smaller Ic degraded segment allows higher maximum temperatures.",
keywords = "critical current, critical current degradation, inhomogeneity, quench, SFCL",
author = "Fei Liang and Weijia Yuan and Min Zhang and Zhenyu Zhang and Sriharsha Venuturumilli and Jay Patel",
year = "2016",
month = "4",
day = "1",
doi = "10.1109/TASC.2016.2521163",
language = "English",
volume = "26",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "IEEE",
number = "3",

}

TY - JOUR

T1 - The Impact of critical current inhomogeneity in HTS coated conductors on the quench process for SFCL application

AU - Liang,Fei

AU - Yuan,Weijia

AU - Zhang,Min

AU - Zhang,Zhenyu

AU - Venuturumilli,Sriharsha

AU - Patel,Jay

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Growing electricity demand from a range of sources with higher loads and the industry structural changes open the possibility of more frequent and larger fault currents producible in liver power grids. Traditional solutions to the fault have difficulties in satisfying the requirement of the new power grid requirement due to many factors, such as high cost and additional impact to power grid in normal loading condition, which leads to the research for an efficient alternative solution of interest to both academia and industry: Superconducting fault current limiter (SFCL). Critical current Ic is used to describe the maximum current that a superconductor can transport and is one of the most important parameters to be considered while designing a SFCL. Guaranteeing the homogeneous distribution of the critical current density flowing in a superconductor is not possible due to manufacturing process limitations. In this paper, the impact of critical current inhomogeneity of coated high temperature superconductors (HTSs) during the quench process is studied experimentally. The results show that both the amount of Ic degradation and the size of Ic degraded segments have a great impact on the maximum temperature generated in the quench process of HTSs when the prospective fault current is low ( 1.13Ic to 1.51Ic. Higher amount of localized Ic degradation allows higher maximum temperatures under low voltage fault. Additionally, smaller Ic degraded segment allows higher maximum temperatures.

AB - Growing electricity demand from a range of sources with higher loads and the industry structural changes open the possibility of more frequent and larger fault currents producible in liver power grids. Traditional solutions to the fault have difficulties in satisfying the requirement of the new power grid requirement due to many factors, such as high cost and additional impact to power grid in normal loading condition, which leads to the research for an efficient alternative solution of interest to both academia and industry: Superconducting fault current limiter (SFCL). Critical current Ic is used to describe the maximum current that a superconductor can transport and is one of the most important parameters to be considered while designing a SFCL. Guaranteeing the homogeneous distribution of the critical current density flowing in a superconductor is not possible due to manufacturing process limitations. In this paper, the impact of critical current inhomogeneity of coated high temperature superconductors (HTSs) during the quench process is studied experimentally. The results show that both the amount of Ic degradation and the size of Ic degraded segments have a great impact on the maximum temperature generated in the quench process of HTSs when the prospective fault current is low ( 1.13Ic to 1.51Ic. Higher amount of localized Ic degradation allows higher maximum temperatures under low voltage fault. Additionally, smaller Ic degraded segment allows higher maximum temperatures.

KW - critical current

KW - critical current degradation

KW - inhomogeneity

KW - quench

KW - SFCL

UR - http://www.scopus.com/inward/record.url?scp=84962132802&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1109/TASC.2016.2521163

U2 - 10.1109/TASC.2016.2521163

DO - 10.1109/TASC.2016.2521163

M3 - Article

VL - 26

JO - IEEE Transactions on Applied Superconductivity

T2 - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 3

M1 - 7390034

ER -