DocumentCode
789740
Title
Optimization of Pulsed-Current Profile for Magnetizing High 
Bulk YBCO Superconductors
Author
Chen, Lihua ; Cha, Yung S. ; Claus, Helmut ; Zheng, Hong ; Veal, Boyd W. ; Peng, Fang Z.
Author_Institution
Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI
Volume
34
Issue
5
fYear
2006
Firstpage
1702
Lastpage
1708
Abstract
Compared with conventional field cooling (FC) and zero field cooling magnetization methods, pulsed field magnetization (PFM) is a promising way to magnetize high-temperature superconductors (HTS) with the advantage of dramatically decreasing the size and complexity of the electromagnetic charging system. The effects of the amplitude, width, and ramp rate of the pulsed current are reported. Transient responses of the HTS to pulsed magnetic fields are discussed and analyzed. A series of three pulses was found to be adequate to magnetize the HTS monolith with optimal trapped field if proper pulse amplitudes and widths are applied. Experiments verified that the trapped magnetic fields of HTS by PFM were comparable to those obtained by FC magnetization
Keywords
barium compounds; high-temperature superconductors; magnetic cooling; magnetisation; yttrium compounds; YBa2Cu3O7-delta; electromagnetic charging system; high TC bulk YBCO superconductors; high-temperature superconductors; pulsed field magnetization; pulsed-current profile; transient response; zero field cooling magnetization; Cooling; EMP radiation effects; Electromagnetic fields; High temperature superconductors; Magnetic fields; Magnetization; Space vector pulse width modulation; Superconducting magnets; Superconductivity; Yttrium barium copper oxide; High; pulsed current; pulsed field magnetization (PFM); trapped field;
fLanguage
English
Journal_Title
Plasma Science, IEEE Transactions on
Publisher
ieee
ISSN
0093-3813
Type
jour
DOI
10.1109/TPS.2006.881890
Filename
1710029
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