A novel miniature superconducting converter for 1 kA magnets

Author

Shevchenko, Oleg A. ; Krooshoop, Erik J G ; Kate, Herman H Jten ; Fedorovsky, Michael A.

Author_Institution

Dept. of Appl. Phys., Twente Univ., Enschede, Netherlands

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2590

Lastpage

2593

Abstract

A miniature full-wave converter to control the current of a superconducting magnet is developed and tested in our institutes. Typical design values of the device are: AC voltage of 35 V, current of 7 A, and frequency 50-60 Hz; DC voltage of ±0.2 V, and current of ±1 kA. An efficiency is better than 97% and a `cold´ volume is less than 1 litre. The rectification is achieved by means of thermally controlled superconducting switches. The high reliability of the device is ensured by means of a mechanical switch. The device provides an efficient way to a fine control of the magnet current

Keywords

convertors; electric current control; rectification; superconducting magnets; superconducting switches; 1 kA; 97 percent; cold volume; current control; mechanical switch; miniature full-wave superconducting converter; rectification; superconducting magnet; thermally controlled superconducting switch; Electrodynamics; Frequency conversion; Magnetic switching; Physics; Shape control; Superconducting coils; Superconducting magnets; Switches; Temperature; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511403

Filename

511403