Superconductor homopolar machines with liquid-metal contacts

Author

Aliyevsky, B.L. ; Bazarnov, B.A. ; Oktyabrsky, A.M. ; Popov, N.N. ; Sherstuk, A.G. ; Shopen, P.

Author_Institution

Dept. of Airborne Electr. Machines, Moscow Aviation Inst., USSR

Volume

28

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

287

Lastpage

290

Abstract

The results of investigations of the mass, and dimensional and energetic properties of SCHM (superconductor homopolar machines) are given. They are illustrated by the calculation of homopolar generators in the band of nominal power per unit P_n=(2-250) MW at voltages of 12, 24, 60, 230 V and rotation frequencies of 25 and 50 r.p.s. Screened and unscreened HMs of a cylindrical type with liquid-metal current collector devices (LCD) and an inductor consisting of two opposing SC coils mounted in a fixed cryostat inside the rotating armature are investigated. All the HMs are designed for maximum economic efficiency and meet the requirement of the lowest power losses in LCD with Na-K eutectic. Experimental results for a 480-kW disk SCHM are given

Keywords

current collecting equipment; homopolar generators; superconducting machines; 12 to 230 V; 2 to 250 MW; 480 kW; NaK eutectic; cylindrical type; energetic properties; fixed cryostat; homopolar generators; liquid-metal contacts; liquid-metal current collector devices; lowest power losses; maximum economic efficiency; rotating armature; superconducting coils; superconductor homopolar machines; Cost function; Electric machines; Homopolar machines; Inductors; Machine windings; Power generation; Power generation economics; Power system dynamics; Superconducting coils; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.119867

Filename

119867