NDLI: Tests and Simulations of Different YBCO Tapes for FCL

Content Provider	IEEE Xplore Digital Library
Author	Gandioli, C. Tixador, P. Mariani, G.B.
Copyright Year	2002
Abstract	The superconducting (SC) fault current limiter (FCL) is very effective to enhance the security and the power quality of electrical grids, two real demands today. This explains the great interest throughout the world. The YBCO tape characteristics are very important for the FCL. They play a part in the design itself (length and section) and in the behavior especially under low prospective current faults. These certainly are the most severe operation conditions for SC tapes, which inevitably show some inhomogeneities along their length. The three phases clear short-circuit, a rather rare event in fact, does not represent the most severe requirement for the SC element. We have tested different YBCO coated conductors in variable voltage conditions. Modeling has shown that these easy experimental conditions lead to the same results compared to variable prospective fault currents. The SC tapes present very different behaviors. Numerical simulations complete these experiments. The influence of the silver thickness is studied especially in terms of electric field under limitation and of conductor inhomogeneity consequences for low prospective currents. Temperature excursions in the lowest Ic part of the tape are investigated. A compromise should be found between the design (minimum volume) and a safe behavior.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	5603104
Ending Page	5603104
Page Count	1
File Size	514477
File Format	PDF
ISSN	10518223
Volume Number	22
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Critical current Conductors Impedance Circuit faults Numerical models Resistance High temperature superconductors superconducting fault current limiter Experimental quench tests impedance fault modeling
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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