Field winding model test of 70 MW class superconducting generator

Author

Yamaguchi, K. ; Yagi, Y. ; Shiobara, R. ; Ohashi, S. ; Sato, H. ; Nakanishi, K. ; Tanaka, K. ; Ohi, M. ; Matsunobu, Y. ; Tomeoku, H. ; Maki, N. ; Ogihara, M.

Author_Institution

Hitachi Ltd., Japan

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

385

Lastpage

387

Abstract

A national project for development of a superconducting generator has been continuing since 1988 in Japan. In this project, the authors have been developing a superconducting field winding. An aluminium stabilized double standard superconducting cable has been developed for the winding. In the rotor, the centrifugal force field is 5000 G, and consequently liquid helium has a cooling ability ten times larger than that in the 1-G gravitational field. Therefore, a cryostable winding design can be used. A field winding model having 40% of the 70-MW-class generator field winding was tested in a nonrotated cryostat. The specification and structure of the cable and the test results are outlined.<>

Keywords

electric generators; superconducting machines; 1-G gravitational field; 70 MW; Al stabilised double standard superconductivity cable; centrifugal force field; cooling ability; cryostable winding design; field winding model; nonrotated cryostat; superconducting field winding; superconducting generator; Aluminum; Cable insulation; Coolants; Cooling; Steel; Superconducting cables; Superconducting coils; Temperature; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233725

Filename

233725