DocumentCode
1240178
Title
Determination of equivalent circuit parameters of the low-Tc superconducting power supply for charging of superconducting magnet
Author
Yoon, Yong Soo ; Ahn, Min Cheol ; Kim, Ho Min ; Ko, Tae Kuk
Author_Institution
Dept. of Electr. Eng., Ansan Coll. of Technol., South Korea
Volume
13
Issue
2
fYear
2003
fDate
6/1/2003 12:00:00 AM
Firstpage
2222
Lastpage
2226
Abstract
This paper deals with determination of equivalent circuit parameters of the Low-Tc Superconducting (LTS) power supply for charging of the LTS magnet, as well as analysis of its characteristics as determined through experiments. The power supply consists of two exciters, a rotor, a stator, and an LTS magnet. In this experiment, a 25.8 mH LTS magnet was used, and rotor revolutions from 30 to 300 rpm were used. The magnetic flux distribution analysis of the system was carried out. Based upon this analysis, maximum 150 A DC excitation current was optimally derived. In order to measure the pumping-current with respect to the magnet flux changes, a Hall sensor was installed at the center of the LTS magnet. The experimental observations have been compared with the theoretical predictions. In this experiment, the pumping-current has reached about 372 A.
Keywords
DC generators; equivalent circuits; magnetic flux; power supplies to apparatus; superconducting machines; superconducting magnets; 150 to 372 A; DC excitation current; LTS magnet; LTS power supply; equivalent circuit parameters determination; exciters; low-Tc superconducting power supply; magnet flux changes; magnetic flux distribution analysis; pumping current; rotor; stator; superconducting magnet charging; Assembly systems; Equivalent circuits; Finite difference methods; Magnetic analysis; Magnetic flux; Manufacturing; Niobium; Power supplies; Stators; Superconducting magnets;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2003.813051
Filename
1212061
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