Double-null power-sharing dynamics in MAST-U

B. Kool

doi:10.1088/1741-4326/ae04fe

2025-09-24

B. Kool *

Thomas Marinus van den Doel

DOI：10.1088/1741-4326/ae04fe

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摘要

En 中文

在反应堆规模的托卡马克装置中，维持有效的双-null（DN）构型预计将是一项挑战。由于偏滤器功率分配与磁场拓扑结构密切相关，即使微小的变化也可能导致快速的功率分配波动，从而加剧本已艰巨的排出挑战。尽管双-null功率分配的静态方面已在各种装置上进行了广泛研究，但本文首次对其动态行为进行了详细研究。我们在MAST-U上进行了专门的H模实验，采用Super-X偏滤器构型，特征扰动频率高达200 Hz。我们的结果清楚地表明，在此频率范围内功率分配的动态阻尼并不显著：偏滤器对快速和慢速扰动均作出同等响应。此外，动态响应也与慢速爬升的准静态结果一致，这意味着静态功率分配模型即使在快速波动下仍然有效。偶尔观察到一些偏离其他情况下主要线性行为的现象，同时向上和向下轨迹之间存在显著的散射和不对称性。这些观察结果可能与核心条件的变化有关，尽管其潜在机制尚不清楚，需要进一步研究。

期刊

Nuclear Fusion

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论文数:

9.4K

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2.2W

机构

Dutch Institute for Fundamental Energy Research

学者数:

论文数: 9

被引数: 1.2K

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