| Autor: |
Matsuzaki, Hirohisa, Kimura, Yousuke, Morita, Eisuke, Ogata, Hideaki, Ida, Tetsuya, Izumi, Mitsuru, Sugimoto, Hidehiko, Miki, Motohiro, Kitano, Masahiro |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Applied Superconductivity; Jun2007 Part 2 of 3, Vol. 17 Issue 2, p1553-1556, 4p, 3 Diagrams, 7 Graphs |
| Abstrakt: |
High-Tc superconductor (HTS) rotating machine with melt-textured Gd-123 bulk pole-field magnets was assembled and tested. The axial gap type motor with neither brush/slip ring nor iron core was composed of a kind of multiple rotor, i.e., a twinned rotor. On each rotor disk, there are eight Gd-123 HTS bulk magnets. The bulk magnets were cooled down with circulating liquid nitrogen supplied inside the rotors. Separately, triple-layered armature copper coils cooled with liquid nitrogen were fixed for pulsed current magnetization for the bulks. Rotation of the twinned rotor provide a better single-phase waveform in 200 rpm compared to in single rotor operation. Magnetic flux density and its distribution on each bulk are stable with averaged decay of 4% for seven hours continuous synchronous operation. The results give a poof on the realization of strong flux collection motor. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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