Development of a 50-60 Hz thermally switched superconducting rectifier

Author

Shevchenko, O.A. ; ten Kate, H.H.J. ; Krooshoop, H.J.G. ; Markovsky, N.V. ; Mulder, G.B.J.

Author_Institution

Appl. Superconductivity Centre, Twente Univ., Enschede, Netherlands

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

590

Lastpage

593

Abstract

A full-wave thermally switched superconducting rectifier, able to operate directly from the mains at the 50-60-Hz frequency, has been developed. Typical design output values of this device are a current of 300 A, a voltage of up to 1 V, an average power of up to 100 VA, and an efficiency better than 95%. The rectification is achieved by means of fast-response switches and an iron core transformer. A simple and reliable algorithm for the rectifier operation, based on the measured current change across the switches, was developed and tested while powering a small magnet. The new features of the rectifier allow for a simplification of the construction and a significant reduction of cost, mass, and volume.<>

Keywords

rectifiers; superconducting devices; 1 V; 300 A; 50 to 60 Hz; 95 percent; design output values; fast-response switches; full-wave thermally switched superconducting rectifier; transformer; Current measurement; Frequency; Iron; Magnetic cores; Magnetic switching; Rectifiers; Superconducting magnets; Switches; Testing; Transformer cores;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233774

Filename

233774