| Project/Area Number |
18K18864
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 21:Electrical and electronic engineering and related fields
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2018-06-29 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | 高温超伝導コイル / 保護 / 高温超伝導マグネット / エネルギー貯蔵 / コイル保護 |
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| Outline of Final Research Achievements |
Superconducting technology have been realizing high-field electro-magnet applications which cannot be realized by other technologies. Recent progress in developing high-temperature superconducting (HTS) wires is now expected to enhance their performance dramatically compared with the case by conventional low-temperature superconducting (LTS) wires. On the other hand, protection for HTS magnet coils has been recognized as a significant issue to be established for practical use. In this project, protection operation of a HTS coil was successfully demonstrated based on an innovative method.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究による成果は、高温超伝導マグネット応用においてボトルネックとなっていた過電流による巻線の焼損と過電圧による巻線の焼損の双方を回避するものであり、同応用における従来の設計制約を取り払い、同応用の拡大・展開に大きく資するものである。具体的には、高温超伝導線材において焼損を防ぐために付加されている銅などの厚い安定化層が不要になり、実効的な電流密度の大幅な向上による応用機器の小型化や線材使用量の低減が期待される。
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