Real-time plasma equilibrium reconstruction and shape control for the MAST Upgrade tokamak

IF 3.5 1区物理与天体物理 Q1 PHYSICS, FLUIDS & PLASMAS

Nuclear Fusion Pub Date : 2024-07-08 DOI:10.1088/1741-4326/ad5c80

H. Anand, W. Wehner, D. Eldon, A. Welander, Z. Xing, A. Lvovskiy, J. Barr, E. Cho, B. Sammuli, D. Humphreys, N. Eidietis, A. Leonard, M. Kochan, C. Vincent, G. McArdle, G. Cunningham, A. Thornton, J. Harrison, V. Soukhanovskii, J. Lovell

引用次数: 0

Abstract

Real-time magnetic control has been developed to deliver precise control of multiple plasma shape parameters for advanced divertor configurations, including double-null, Super-X, X-point target and X-divertor for the first time on the MAST Upgrade (MAST-U) spherical tokamak. Successful real-time magnetic equilibrium control of different plasma shape variables has been accomplished in the 2022–2023 MAST-U experimental campaign for the advanced MAST-U divertor configurations. Application of the MAST-U boundary reconstruction algorithm, LEMUR, is described and compared with off-line equilibrium reconstruction and diagnostic measurements. The process of design and verification of the axisymmetric magnetic control schemes using a suite of control analysis tools (known collectively as TokSys) is also described.

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MAST 升级型托卡马克的实时等离子体平衡重建和形状控制

已开发出实时磁控制功能，可为先进的分流器配置提供多个等离子体形状参数的精确控制，包括双空、Super-X、X 点目标和 X 分流器，这在 MAST 升级（MAST-U）球形托卡马克上尚属首次。在2022-2023年MAST-U实验活动中，针对先进的MAST-U分流器配置，成功实现了对不同等离子体形状变量的实时磁平衡控制。介绍了MAST-U边界重建算法LEMUR的应用，并与离线平衡重建和诊断测量进行了比较。还介绍了使用一套控制分析工具（统称为 TokSys）设计和验证轴对称磁控制方案的过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Fusion 物理-物理：核物理

CiteScore

6.30

自引率

39.40%

发文量

411

审稿时长

2.6 months

期刊介绍： Nuclear Fusion publishes articles making significant advances to the field of controlled thermonuclear fusion. The journal scope includes: -the production, heating and confinement of high temperature plasmas; -the physical properties of such plasmas; -the experimental or theoretical methods of exploring or explaining them; -fusion reactor physics; -reactor concepts; and -fusion technologies. The journal has a dedicated Associate Editor for inertial confinement fusion.