Magnetization loss measurements of various copper-plated multifilament coated conductors

カテゴリ: 部門大会

論文No: 3-D-p1-10

グループ名: 【A】令和3年電気学会基礎・材料・共通部門大会

発行日: 2021/09/01

著者名: Mao Shigemasa（Kyoto University）, Akira Takahashi（Kyoto University）, Yusuke Sogabe（Kyoto University）, Naoyuki Amemiya（Kyoto University）

キーワード: High temperature superconductor|REBCO coated conductor|AC superconducting motor|AC loss|Magnetization loss

要約(日本語): Copper-plated multifilament coated conductors are useful to achieve both low AC loss and high robustness against normal transition. In order to decouple filaments against transverse magnetic field and reduce AC loss effectively, we are developing the SCSC cable, in which such conductors are spirally wound on a round core. We measured the magnetization losses of various conductors with these configurations: small pieces aligned in a row, and spirally wound around a round core, when varying field amplitude and when varying frequency. We identified hysteresis losses and coupling losses. We also determined coupling time constants, which is one of the most important parameters to characterize the multifilament conductors.

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