NDLI: The advantages of using high-temperature superconductors in high-duty-cycle applications of SMES

Content Provider	IEEE Xplore Digital Library
Author	Schoenung, S.M. Bieri, R.L. Bickel, T.C.
Copyright Year	2002
Abstract	Superconducting magnetic energy storage (SMES) has been proposed for use in applications with high-duty-cycle or discharge/charge cycling rate. Such applications include transit system electric support and frequency stabilization of transmission lines. When cycled frequently, the thermal load to the cooling system is dominated by eddy current or ac losses. In systems with small energy storage capacity, the refrigeration system cost associated with ac losses can dominate the total system cost if the coil uses conventional superconductor and liquid helium cooling. If high temperature superconductors operating at liquid nitrogen temperature could be used then significant savings in refrigeration cost and hence, system cost, are possible. The HTS conductor does require a twisted configuration to realize these savings. Analysis and results for SMES systems ranging in size from 1 MJ/1 MW to 10 MJ/10 MW and operating at up to 1 Hz are presented.<>
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	341
Ending Page	344
Page Count	4
File Size	406076
File Format	PDF
ISSN	10518223
Volume Number	5
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High temperature superconductors Samarium Costs Superconducting magnetic energy storage Superconducting transmission lines Cooling Refrigeration Superconducting coils Frequency Thermal loading
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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