紀要論文 QUESTにおける長時間放電でのホール素子を用いたプラズマ電流と位置のリアルタイム同定
Real-time identification of plasma current and its position with hall sensors for long-pulse operation on QUEST

長谷川, 真  ,  中村, 一男  ,  図子, 秀樹  ,  花田, 和明  ,  藤澤, 彰英  ,  出射, 浩  ,  徳永, 和俊  ,  永島, 芳彦  ,  東島, 亜紀  ,  川崎, 昌二  ,  中島, 寿年  ,  恩地, 拓己  ,  渡邉, 理  ,  ミシュラ, キショール カンティ

149pp.10 - 15 , 2015-09 , 九州大学応用力学研究所
ISSN:1345-5664
NII書誌ID(NCID):AA11459359
内容記述
Procedure to identify the plasma current and its position with hall sensors in real time is presented for long-pulse operation. Hall sensors are installed around the vacuum vessel of QUEST on the atmospheric side. With this procedure, plasma current is treated as a filament current positioned in the vacuum vessel. The plasma current and its position are calculated by the intensities of hall sensor signals and its ratios, respectively. The validity and noise immunity of this procedure is checked numerically. With hall sensor signals, the plasma current and its position are calculated experimentally in real time, and the calculation results correspond well to the results with a rogowski coil and flux loops. Drift errors do not occur with hall sensors, and this procedure is suitable for long-pulse operation.
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http://catalog.lib.kyushu-u.ac.jp/handle/2324/1660011/149_p010.pdf

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