Analytical models for a mechanical strain of a modified D-shaped toroidal coil for 1 kWh experimental SMES

Author

Ezaki, T. ; Horiuchi, Y. ; Fujii, T. ; Irie, F. ; Tsutsumi, K. ; Hayashi, H.

Author_Institution

Oita Univ., Japan

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

305

Lastpage

308

Abstract

Several interesting characteristics in the strain force measurement of the supporting structure of the modified D-shaped toroidal coil for 1 kWh experimental SMES (ESK) have been observed. A simple analytical model is developed to simulate the measured characteristics. With this model, the mechanical behavior of the superconductor in the coil is studied. Calculated results based on this model show good agreement with the observed characteristics. Mechanical losses of the superconducting coil are also discussed using this model.

Keywords

force measurement; strain measurement; superconducting coils; superconducting magnet energy storage; 1 kWh; mechanical behavior; mechanical losses; mechanical strain; modified D-shaped toroidal coil; strain force measurement; superconducting coils; supporting structure; Analytical models; Capacitive sensors; Conductors; Magnetic forces; Mechanical variables measurement; Samarium; Strain measurement; Superconducting coils; Superconducting magnetic energy storage; Tensile stress;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783296

Filename

783296