NDLI: HTS Magnets: Opportunities and Issues for SMES

Content Provider	IEEE Xplore Digital Library
Author	Vincent, B. Tixador, P. Lecrevisse, T. Rey, J.-M. Chaud, X. Miyoshi, Y.
Copyright Year	2002
Abstract	SMES (superconducting magnetic energy storage) devices are an attractive solution for pulsed current sources. However, the specific stored energy is moderate and has to be improved. High temperature superconductor (HTS) materials offer opportunities in terms of current carrying capabilities as well as mechanical strength. We report the optimization of solenoids with regards to mechanical stress and current density constraints. 20 kJ/kg requires current densities above 150 MA/m² and stresses of about 400 MPa for energies in the range of 5 to 50 MJ. The optimization code makes possible the study of the influence of different parameters such as the maximum allowable magnetic field. A method is proposed to discriminate space of solution. The best configuration is achieved keeping in mind the peculiar properties of HTS tape (which impact protection of SMES), and the specifications of the application. Parallel to these theoretical approaches, we are developing the magnet technology by first realizing small magnets we test under very high fields (up to 18 T) to apply the large mechanical stresses.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	5700805
Ending Page	5700805
Page Count	1
File Size	579088
File Format	PDF
ISSN	10518223
Volume Number	23
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Superconducting magnetic energy storage Current density High temperature superconductors Stress Optimization Solenoids YBCO superconductor Energy storage high magnetic field high temperature superconductors mechanical stress optimization
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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