A Novel Arrangement for an HTS Field Coil for Large-Capacity Superconducting Machines

A high-temperature superconductor (HTS) field coil with a novel, step-shaped cross section is proposed for large-capacity superconducting machine applications. The design of the structure is explained in detail, and comparisons are made with conventional coils. The electromagnetic characteristics ar...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 2016-10, Vol.26 (7), p.1-6
Hauptverfasser:	Jiang, Zai Qiang, Jin, Jian Xun
Format:	Artikel
Sprache:	eng
Schlagworte:	Air gaps Critical current Generators Harmonic analysis High-temperature superconductors HTS field coil HTS machine Iron iron loss magnetic field distribution Magnetic flux step-shaped coil Superconducting coils
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Beschreibung
Zusammenfassung:	A high-temperature superconductor (HTS) field coil with a novel, step-shaped cross section is proposed for large-capacity superconducting machine applications. The design of the structure is explained in detail, and comparisons are made with conventional coils. The electromagnetic characteristics are also analyzed in comparison with the conventional alternative. From the analysis, the overlapping topology can reduce the volume of the generator and achieve better electromagnetic characteristics by eliminating the magnetic flux sag produced by the adjacent field coils, while also decreasing the iron loss.
ISSN:	1051-8223 1558-2515
DOI:	10.1109/TASC.2016.2594946