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Analysis of feedback control of magnetic islands via rotational field based on Rutherford model
Physics of Plasmas ( IF 2.2 ) Pub Date : 2020-09-01 , DOI: 10.1063/5.0008297
I. Uenaga 1 , M. Furukawa 2
Affiliation  

This work uses the Rutherford model for a cylindrical plasma to study the dynamics of magnetic islands under external magnetic perturbations, including both applied rotational magnetic fields and static error magnetic fields. The results show that, in an unstable tearing situation, magnetic islands are completely suppressed by modulating the frequency of the externally applied rotational magnetic field to maintain the phase of the combined external magnetic field to be opposite (or nearly opposite) that of the magnetic islands. The frequency is modulated by using a proportional controller in the simulation, where the frequency of the rotational field is determined by using the island rotation frequency “measured” in the simulation.

中文翻译:

基于卢瑟福模型的旋转磁场反馈控制磁岛分析

这项工作使用圆柱等离子体的卢瑟福模型来研究外部磁扰动下磁岛的动力学,包括施加的旋转磁场和静态误差磁场。结果表明,在不稳定撕裂情况下,通过调节外加旋转磁场的频率,使组合外磁场的相位与磁岛的相位相反(或几乎相反),可以完全抑制磁岛。 . 在模拟中使用比例控制器调制频率,其中旋转场的频率通过使用模拟中“测量”的岛旋转频率来确定。
更新日期:2020-09-01
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