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Effect Comparison of Different Conductor Widths in Magnetic Dam for Protection of NI REBCO Pancake Coils
| Title: | Effect Comparison of Different Conductor Widths in Magnetic Dam for Protection of NI REBCO Pancake Coils |
| Authors: | Mato, Takanobu Browse this author | | Noguchi, So Browse this author →KAKEN DB |
| Keywords: | Magnetic dam | | mechanical protection | | no-insula- tion | | quench | | REBCO magnet |
| Issue Date: | May-2024 |
| Publisher: | IEEE (Institute of Electrical and Electronics Engineers) |
| Journal Title: | IEEE transactions on applied superconductivity |
| Volume: | 34 |
| Issue: | 3 |
| Start Page: | 4701705 |
| Publisher DOI: | 10.1109/TASC.2024.3354680 |
| Abstract: | One of the most challenging problems of no-insulation (NI) REBCO pancake coils is mechanical and thermal protection. Particularly, pancake coils suffer high stress during a local-normal state transition (quench event). One solution is a magnetic dam, which is merely NI windings with a few turns. The effectiveness of magnetic dams by 4-mm-wide NI windings was demonstrated numerically in the previous study. The effectiveness would be different when the REBCO tapes with different widths are employed. Therefore, in this article, the electromagnetic behaviors of NI REBCO pancake coils with the magnetic dam of 12-mm-wide REBCO tape are investigated numerically. The charging and the normal-state transition are simulated. It is demonstrated that the 4-mm-wide magnetic dam works more effectively due to the less screening current in the 4-mm-wide magnetic dam than the 12-mm-wide magnetic dam in this case. |
| Rights: | © 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/91594 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 野口 聡
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