Discussion of the stable thermal equilibrium current of a superconductor during tests of high-speed rotor windings

Author

Kaiho, Katsuyuki ; Nomura, Harehiko ; Sekine, Seiji ; Higuchi, Noboru ; Ishii, Itaru ; Natori, Naotake ; Tateishi, Hiroshi ; Fuchino, Syuichirou ; Arai, Kenta ; Kajikawa, Kazuhiro ; Tamada, Noriharu

Author_Institution

Electrotech. Lab., Ibaraki, Japan

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

223

Lastpage

226

Abstract

Research and development of superconducting generation equipment has been conducted. As a part of the design research for the superconducting generator, the stability of superconducting field winding is being studied. The goal of this study is to formulate a design philosophy for a stable superconducting field winding in the presence of large disturbances. In the present paper, we describe the stable thermal equilibrium current of the superconductor, which is measured during the stability test. Modifying the equal area criterion presented by Maddock et al., a simple graphical scheme has been presented and the minimum stable thermal equilibrium current calculated.

Keywords

electric generators; machine testing; rotors; superconducting machines; equal area criterion; high-speed rotor windings; stability test; stable thermal equilibrium current; superconducting field winding; superconducting generation equipment; Acceleration; Coils; Conductors; Current measurement; Laboratories; Power generation; Research and development; Rotors; Stability criteria; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.614472

Filename

614472