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Waveform control pulse magnetization for HTS bulk magnet
https://oacis.repo.nii.ac.jp/records/1774
https://oacis.repo.nii.ac.jp/records/177446014414-afd6-41c8-ab35-2ce30e3c6d36
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-06-24 | |||||
タイトル | ||||||
タイトル | Waveform control pulse magnetization for HTS bulk magnet | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
著者 |
Ida, Tetsuya
× Ida, Tetsuya× Shigeuchi, Koji× Okuda, Sayo× Watasaki, Masahiro× Izumi, Mitsuru |
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書誌情報 |
Journal of Physics: Conference Series 巻 695, 号 1, p. 012009, 発行日 2016-03-17 |
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抄録 | ||||||
内容記述 | For the past 10 years, we have studied high-temperature superconducting (HTS) bulk magnets for use in electromagnetic rotating machines. If the magnetic field effectively magnetizes the HTS bulk, then the size of the motor and generator can be reduced without a reduction in output. We showed that the melt-textured Gd-Ba-Cu-O HTS bulk effectively traps a high magnetic field using waveform control pulse magnetization (WCPM). WCPM makes it possible to generate any pulsed magnetic field waveform by appropriately changing the duty ratio of the pulse width modulation. By chopping so that the pulsed magnetic field has a period of about 1ms, the WCPM technology enables active control of the rise time and suppresses magnetic flux motion that decreases magnetization efficiency. This method is also useful for any HTS bulk magnet, and the high magnetic flux density is trapped in the HTS bulk by a single pulse magnetic field. We developed a magnetizer that has a feedback system from the penetrated magnetic flux density to realize WCPM. In this research, using only a single pulse magnetic field of WCPM method at 77K, an HTS bulk with a 45mm diameter and 19mm thickness trapped a maximum magnetic field of 1.63T, which is more than 90% of the trapped magnetic flux density by FC magnetization. This result suggests that the pulse magnetizing method can replace the conventional field-cooled method and promote the practical use of HTS magnets for electromagnetic power applications. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1742-6596 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12839617 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1742-6596/695/1/012009 | |||||
情報源 | ||||||
関連識別子 | https://doi.org/10.1088/1742-6596/695/1/012009 | |||||
関連名称 | Publisher's Version/PDF (OpenAccess) | |||||
情報源 | ||||||
関連識別子 | https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-15K05971/ | |||||
関連名称 | KAKEN研究課題: 波形制御パルス磁場による高温超伝導バルク磁石の捕捉磁場特性 | |||||
情報源 | ||||||
関連識別子 | https://nrid.nii.ac.jp/ja/nrid/1000080344026/ | |||||
関連名称 | 研究代表者: 井田 徹哉 (東京海洋大学) | |||||
件名 | ||||||
主題 | 科学研究費研究成果 | |||||
出版者 | ||||||
出版者 | IOP Publishing | |||||
科学研究費研究課題 | ||||||
主題 | 波形制御パルス磁場による高温超伝導バルク磁石の捕捉磁場特性 | |||||
科学研究費研究課題 | ||||||
主題 | Trapped magnetic field characteristics of high temperature superconducting bulk magnet by waveform control pulse magnetic field | |||||
研究課題番号 | ||||||
内容記述 | 15K05971 |