A novel miniature superconducting converter for 1 kA magnets

Oleg A. Chevtchenko, Erik J.G. Krooshoop, Herman H.J. ten Kate, Michael A. Fedorovsky

Research output: Contribution to journalArticleAcademicpeer-review

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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.
Original languageEnglish
Pages (from-to)2590-2593
Number of pages4
JournalIEEE transactions on magnetics
Volume32
Issue number4
DOIs
Publication statusPublished - 1996

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