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Numerical Simulation of Superconducting Coil Wound With No-Insulation NbTi Wire

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/56583

Title: Numerical Simulation of Superconducting Coil Wound With No-Insulation NbTi Wire
Authors: Noguchi, So Browse this author →KAKEN DB
Itoh, Ryusei Browse this author
Hahn, Seungyong Browse this author
Iwasa, Yukikazu Browse this author
Keywords: circuit equation
dynamic stability
no-insulation coil
superconducting magnet
Issue Date: Jun-2014
Publisher: IEEE
Journal Title: IEEE Transactions on Applied Superconductivity
Volume: 24
Issue: 3
Start Page: 4900504
Publisher DOI: 10.1109/TASC.2013.2287909
Abstract: A no-insulation winding technique for an NbTi superconducting coil is expected to improve its dynamic stability during charging or discharging. Experimental results, recently reported, demonstrated the charging stability enhancement of an NI coil. In an NI winding, an amount of current can bypass to adjacent wires to avoid the generation of a local hot spot and, as a result, the dynamic stability is improved. In spite of the potential technical merits of the NI technique, the charging responses of an NI coil, including the non-uniform current distribution under a time-varying condition, have not been investigated analytically yet. In this paper, we propose a simulation method using an equivalent circuit equation for an NI coil with its inductance and the contact turn-to-turn resistances taken into consideration. The simulation results were analyzed in three aspects: terminal voltage, loss energy, and stored magnetic energy.
Rights: © 2014 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/2115/56583
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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