Winding Configurations and AC Loss of Superconducting Synchronous REBCO Motors

Akifumi Kawagoe, Kazuma Kudou, Ryota Kanemaru, Masataka Iwakuma, Masayuki Konno, Akira Tomioka, Teruo Izumi

Research output: Contribution to journalConference articlepeer-review

Abstract

We investigate effects of armature winding configurations on properties of fully superconducting synchronous motors using REBCO tapes. The effect of the configurations on ac losses in the winding tapes due to the changing transvers magnetic fields applied to the tapes in direction of perpendicular to the flat face of the tapes is important. In generally, it is effective to close winding factor to 1 for improvement of properties of motors. For the purpose, the shape of armature windings is better saddle-shaped winding than race-Track winding. In this paper, numerical calculations on the properties of fully superconducting synchronous motors using REBCO tapes with 500 kW class were described. Operating temperature was 65 K. In order to demonstrate the feasibility of saddle-shaped winding, test coil with 5 turns were wound with YBCO tapes and then critical current measurements were carried out. The degradation of the properties has not observed.

Original languageEnglish
Article number012144
JournalJournal of Physics: Conference Series
Volume1559
Issue number1
DOIs
Publication statusPublished - Jun 19 2020
Event14th European Conference on Applied Superconductivity, EUCAS 2019 - Glasgow, United Kingdom
Duration: Sep 1 2019Sep 5 2019

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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