2012 Fiscal Year Final Research Report
Basic Study on Design of Oxide-Superconducting Coils for Electric Power Application in Low-CO2Near Future
| Project/Area Number |
22360117
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Kyushu University |
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Principal Investigator |
FUNAKI Kazuo 九州大学, システム情報科学研究院, 教授 (60091352)
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| Co-Investigator(Kenkyū-buntansha) |
KAJIKAWA Kazuhiro 九州大学, システム情報科学研究院, 准教授 (10294894)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 電気有効利用 / 電気エネルギー工学 / 電気機器 / 高温超伝導 / 伝導冷却 / コイル設計 / 低損失化 |
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| Research Abstract |
In order to establish new design methods of low-AC-loss superconducting coils cooled by cryocooler with high efficiency, we proposed a new low-AC-loss structure for Bi-system (Bi-2223) oxide-superconducting multifilamentary taped wires on the first stage, which are promising practical wires developed. We showed a new design method of transport AC losses generated in superconducting coils with magnetic field distribution and local AC loss properties of superconducting windings on the second stage. We also proposed advanced structures for superconducting coils with highly uniform distribution of magnetic field by means of reducing magnetic hysteresis remarkably in taped windings
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