Experimental Tests of DC SFCL under Low Impedance and High Impedance Fault Conditions

Jiawen Xi; Xiaoze Pei; Wenjuan Song; Bin Xiang; Zhiyuan Liu; Xianwu Zeng

doi:10.1109/TASC.2021.3065886

Experimental Tests of DC SFCL under Low Impedance and High Impedance Fault Conditions

Jiawen Xi, Xiaoze Pei, Wenjuan Song, Bin Xiang, Zhiyuan Liu, Xianwu Zeng

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

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Abstract

DC system protection is more challenging than that for AC system due to the rapid rate of rise of the fault current and absence of natural current zero-crossing in DC systems. Superconducting fault current limiter (SFCL) in DC systems is a promising technology to reduce the fault current level and the rate of rise of the fault current, and also SFCLs have no resistance during normal operation. In this paper, the behaviors of an SFCL coil are investigated under both low impedance and high impedance fault conditions in DC systems. In the low impedance fault condition system, the SFCL coil performs effective limitation of the fault current level under different prospective fault current levels. The application of SFCLs with limited inductance in the DC system can be a potential solution to effectively suppress the fault current under low impedance short-circuit faults. The SFCL coil under the high impedance fault condition can only limit the prospective fault current when it is much higher than the critical current of the coil.

Original language	English
Article number	9376895
Pages (from-to)	1-1
Number of pages	1
Journal	IEEE Transactions on Applied Superconductivity
Volume	31
Issue number	5
Early online date	12 Mar 2021
DOIs	https://doi.org/10.1109/TASC.2021.3065886
Publication status	Published - 31 Aug 2021

Keywords

Capacitors
Circuit faults
Fault current limiters
Fault currents
Impedance
Inductance
Resistance
Yttrium barium copper oxide
power system protection
short-circuit currents
yttrium barium copper oxide (YBCO)

ASJC Scopus subject areas

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

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10.1109/TASC.2021.3065886

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Cite this

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title = "Experimental Tests of DC SFCL under Low Impedance and High Impedance Fault Conditions",

abstract = "DC system protection is more challenging than that for AC system due to the rapid rate of rise of the fault current and absence of natural current zero-crossing in DC systems. Superconducting fault current limiter (SFCL) in DC systems is a promising technology to reduce the fault current level and the rate of rise of the fault current, and also SFCLs have no resistance during normal operation. In this paper, the behaviors of an SFCL coil are investigated under both low impedance and high impedance fault conditions in DC systems. In the low impedance fault condition system, the SFCL coil performs effective limitation of the fault current level under different prospective fault current levels. The application of SFCLs with limited inductance in the DC system can be a potential solution to effectively suppress the fault current under low impedance short-circuit faults. The SFCL coil under the high impedance fault condition can only limit the prospective fault current when it is much higher than the critical current of the coil.",

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author = "Jiawen Xi and Xiaoze Pei and Wenjuan Song and Bin Xiang and Zhiyuan Liu and Xianwu Zeng",

note = "Funding Information: Manuscript received November 29, 2020; revised February 28, 2021; accepted March 9, 2021. Date of publication March 12, 2021; date of current version April 16, 2021. This work was supported in part by the U.K. EPSRC: Developing superconducting fault current limiters (SFCLs) for distributed electric propulsion aircraft: EP/S000720/1, and in part by the U.K. Royal Society International Exchanges 2018 Cost Share (China): Advanced DC fault protection by integration of superconducting fault current limiter (SFCL) with DC circuit breaker: IEC\NSFC\181111. (Corresponding author: Xiaoze Pei.) Jiawen Xi, Xiaoze Pei, and Wenjuan Song are with the Department of Electronic and Electrical Engineering, University of Bath, Bath BA2 7AY, U.K. (e-mail: j.xi@bath.ac.uk; x.pei@bath.ac.uk; ws603@bath.ac.uk). Publisher Copyright: IEEE",

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AU - Zeng, Xianwu

N1 - Funding Information: Manuscript received November 29, 2020; revised February 28, 2021; accepted March 9, 2021. Date of publication March 12, 2021; date of current version April 16, 2021. This work was supported in part by the U.K. EPSRC: Developing superconducting fault current limiters (SFCLs) for distributed electric propulsion aircraft: EP/S000720/1, and in part by the U.K. Royal Society International Exchanges 2018 Cost Share (China): Advanced DC fault protection by integration of superconducting fault current limiter (SFCL) with DC circuit breaker: IEC\NSFC\181111. (Corresponding author: Xiaoze Pei.) Jiawen Xi, Xiaoze Pei, and Wenjuan Song are with the Department of Electronic and Electrical Engineering, University of Bath, Bath BA2 7AY, U.K. (e-mail: j.xi@bath.ac.uk; x.pei@bath.ac.uk; ws603@bath.ac.uk). Publisher Copyright: IEEE

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N2 - DC system protection is more challenging than that for AC system due to the rapid rate of rise of the fault current and absence of natural current zero-crossing in DC systems. Superconducting fault current limiter (SFCL) in DC systems is a promising technology to reduce the fault current level and the rate of rise of the fault current, and also SFCLs have no resistance during normal operation. In this paper, the behaviors of an SFCL coil are investigated under both low impedance and high impedance fault conditions in DC systems. In the low impedance fault condition system, the SFCL coil performs effective limitation of the fault current level under different prospective fault current levels. The application of SFCLs with limited inductance in the DC system can be a potential solution to effectively suppress the fault current under low impedance short-circuit faults. The SFCL coil under the high impedance fault condition can only limit the prospective fault current when it is much higher than the critical current of the coil.

AB - DC system protection is more challenging than that for AC system due to the rapid rate of rise of the fault current and absence of natural current zero-crossing in DC systems. Superconducting fault current limiter (SFCL) in DC systems is a promising technology to reduce the fault current level and the rate of rise of the fault current, and also SFCLs have no resistance during normal operation. In this paper, the behaviors of an SFCL coil are investigated under both low impedance and high impedance fault conditions in DC systems. In the low impedance fault condition system, the SFCL coil performs effective limitation of the fault current level under different prospective fault current levels. The application of SFCLs with limited inductance in the DC system can be a potential solution to effectively suppress the fault current under low impedance short-circuit faults. The SFCL coil under the high impedance fault condition can only limit the prospective fault current when it is much higher than the critical current of the coil.

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KW - yttrium barium copper oxide (YBCO)

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SN - 1051-8223

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ER -

Experimental Tests of DC SFCL under Low Impedance and High Impedance Fault Conditions

Abstract

Keywords

ASJC Scopus subject areas

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Developing Superconducting Fault Current Limiters (SFCLs) for Distributed Electric Propulsion Aircraft

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Experimental Tests of DC SFCL under Low Impedance and High Impedance Fault Conditions

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

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Projects

Developing Superconducting Fault Current Limiters (SFCLs) for Distributed Electric Propulsion Aircraft

Cite this