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A new analysis method for accurate supercurrent distribution inside high-temperature superconducting bulk

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/8522

Title: A new analysis method for accurate supercurrent distribution inside high-temperature superconducting bulk
Authors: Yanagawa, Tomohiro Browse this author
Kaneda, Kazufumi Browse this author
Ishiyama, Atsushi Browse this author
Noguchi, So Browse this author →KAKEN DB
Yamashita, Hideo Browse this author
Keywords: E-J powe law
high-temperature superconducting bulk
nonlinear equation solver
supercurrent distriution
Issue Date: Apr-2006
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS
Journal Title: IEEE transactions on magnetics
Volume: 42
Issue: 4
Start Page: 751
End Page: 754
Publisher DOI: 10.1109/TMAG.2006.871606
Abstract: It is difficult to accurately simulate supercurrent in high-temperature superconducting bulk even by adopting the finite-element method. The equivalent electrical conductivity of high-temperature superconducting bulk, which has a strong nonlinearity according to the E-J power law, is introduced for the supercurrent analysis. However, the strong nonlinearity results in bad convergency of the nonlinear equation solvers, i.e., the Newton-Raphson (NR) method. Consequently, the unsuitable and/or undulating supercurrent is observed. Therefore, in this paper, the accuracy of the supercurrent analysis in the high-temperature superconducting bulk is discussed and a new method is proposed for the accurate high-temperature superconducting bulk simulation. Then, the method combined a line search with the NR method is adopted as a nonlinear equation solver, and the improvement of convergency and computation time are investigated
Rights: (c) 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the
Type: article
URI: http://hdl.handle.net/2115/8522
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)

Submitter: 野口 聡

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