A 30 kVA superconducting generator development and basic tests

Author

Baik, S.K. ; Sohn, M.H. ; Park, D.Y. ; Ahn, J.B. ; Kwon, Y.K. ; Ryu, K.S. ; Jo, Y.-S. ; Muta, I. ; Hoshino, T.

Author_Institution

Korea Electrotechnol. Res. Inst., Changwon, South Korea

Volume

10

Issue

1

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

947

Lastpage

950

Abstract

A 30 kVA superconducting generator has been designed, developed and successfully tested by the Korea Electrotechnology Research Institute (KERI). The design is based on a 2-dimensional electromagnetic field analysis of cylindrical coordinates. The field winding of rotor has been wound with superconducting wire of NbTi alloy and tested after assembly with other rotor components. The stator has air-gap type armature windings, which produce higher terminal voltage, and a more sinusoidal voltage waveform than conventional iron cored machines. Steady-state open and short-circuit tests and lamp load tests have also been conducted. The results of these tests are given in this paper and compared with design quantities. Moreover, the cooling scheme and characteristics of the test system are included.

Keywords

electric generators; electromagnetic fields; machine testing; machine theory; rotors; stators; superconducting coils; superconducting machines; 2-D electromagnetic field analysis; 30 kVA; NbTi; NbTi superconducting wire; air-gap type armature windings; cooling scheme; development; lamp load tests; rotor components; rotor field winding; sinusoidal voltage waveform; stator; steady-state open-circuit tests; steady-state short-circuit tests; superconducting generator; terminal voltage; testing; Electromagnetic analysis; Electromagnetic fields; Niobium compounds; Rotors; Stator cores; Superconducting filaments and wires; Testing; Titanium compounds; Voltage; Wounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.828388

Filename

828388