Development of equilibrium control technic for the spherical tokamak plasmas from initial phases to steady state phase

球形托卡马克等离子体从初始阶段到稳态阶段的平衡控制技术发展

• 批准号: 24760699
• 负责人: HASEGAWA Makoto
• 金额: $ 1.75万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760699/
• 关键词: 球状トカマク; 平衡制御; 定常運転; プラズマ画像; Machine Vision; プラズマ制御; リアルタイム制御; プラズマ定常維持; 画像計測; プラズマ形状同定; 画像制御

The purpose of this task is to develop the technic to identify and control plasma position and its shape on spherical tokamaks. In order to identify them, the magnetic signals are generally used. Since these signals are calculated with integration, errors called as drift errors are piled up in the long time plasma discharge. Thus, the idea is to acquire the images of plasma with visible lights, soft x-ray, and so on, and the plasma position is identified with the image in real-time. From this position, magnetic signals are estimated and errors are corrected. In this task, the operation test is done with a flashlight instead of plasma, and the good position detection and its drift error correction are confirmed. Furthermore, the real-time equilibrium calculation code is developed.

本课题的目的是发展球形托卡马克等离子体位置和形状的识别与控制技术。为了识别它们，通常使用磁信号。由于这些信号是用积分计算的，因此在长时间等离子体放电中积累了称为漂移误差的误差。因此，该想法是利用可见光、软X射线等获取等离子体的图像，并且利用图像实时地识别等离子体位置。从该位置，磁信号被估计并且误差被校正。在本课题中，用闪光灯代替等离子体进行了运行试验，证实了良好的位置检测及其漂移误差校正。开发了实时平衡计算程序。

项目成果

Development of plasma control system for steady state operation on QUEST

开发用于 QUEST 稳态运行的等离子体控制系统

• 发表时间: 2013
• 作者: Makoto Hasegawa;Kazuo Nakamura;Hideki Zushi;Kazuaki Hanada;Akihide Fujisawa;Keisuke Matsuoka;Hiroshi Idei;Yoshihiko Nagashima;Kazutoshi Tokunaga;Shoji Kawasaki;Hisatoshi Nakashima;Aki Higashijima
• 通讯作者: Aki Higashijima

A Plasma Shape Identification with Magnetic Analysis for the Real-time Control on QUEST

用于 QUEST 实时控制的磁分析等离子体形状识别

• 发表时间: 2012
• 期刊: 電気学会論文誌Ａ（基礎・材料・共通部門誌）
• 作者: J. Stober;G.L. Jackson;E. Ascasibar;Y.-S. Bae;J. Bucalossi;A. Cappa;T. Casper;M.-H. Cho;Y. Gribov;G. Granucci;K. Hanada;J. Hobirk;A.W. Hyatt;S. Ide;J.-H. Jeong; et.al.;Hanada Kazuaki
• 通讯作者: Hanada Kazuaki

Development of plasma control system for divertor configuration on QUEST

开发用于 QUEST 偏滤器配置的等离子控制系统

• DOI: 10.1016/j.fusengdes.2013.03.035
• 发表时间: 2013
• 期刊: Fusion Engineering and Design
• 影响因子: 1.7
• 作者: M. Hasegawa;K. Nakamura;H. Zushi;K. Hanada;A. Fujisawa;K. Matsuoka;O. Mitarai;H. Idei;Y. Nagashima;K. Tokunaga;S. Kawasaki;H. Nakashima;A. Higashijima
• 通讯作者: A. Higashijima