The spectrum analysis of RMP coils with multiple connection modes and the design of high field side coils on J-TEXT

Zhengkang REN; Da LI; Nengchao WANG; Feiyue MAO; Zhuo HUANG; Song ZHOU; Ruo JIA; Ying HE; Chengshuo SHEN; Abba Alhaji BALA; Bo RAO; Yonghua DING; the J-TEXT Team

doi:10.1088/2058-6272/aca45f

Plasma Science and Technology > 2022 > 24(12): 124020. > DOI: 10.1088/2058-6272/aca45f

Zhengkang REN, Da LI, Nengchao WANG, Feiyue MAO, Zhuo HUANG, Song ZHOU, Ruo JIA, Ying HE, Chengshuo SHEN, Abba Alhaji BALA, Bo RAO, Yonghua DING, the J-TEXT Team. The spectrum analysis of RMP coils with multiple connection modes and the design of high field side coils on J-TEXT[J]. Plasma Science and Technology, 2022, 24(12): 124020. DOI: 10.1088/2058-6272/aca45f

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The spectrum analysis of RMP coils with multiple connection modes and the design of high field side coils on J-TEXT

1.
International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
2.
College of Computer Science, South-Central Minzu University, Wuhan 430074, People's Republic of China
3.
Physics Department, Federal University Dutse, Dutse 720101, Nigeria

More Information

Corresponding author:
Da LI, E-mail: lidaninggao@hust.edu.cn
⁴ See Wang et al (https://doi.org/10.1088/1741-4326/ac3798) for the J-TEXT team.
Received Date: August 23, 2022
Revised Date: November 16, 2022
Accepted Date: November 17, 2022
Available Online: December 05, 2023
Published Date: January 03, 2023

Graphical Abstract

Abstract

Abstract

The phase difference Δξ between locked islands (2/1 and 3/1) has been found to influence the heat transport on the thermal quench during disruptions by numerical modeling [Hu Q et al 2019 Nucl. Fusion 59, 016005]. To verify this experimentally, a set of resonant magnetic perturbation (RMP) coils is required to excite coupled magnetic islands with different Δξ. The spectrum analysis shows that the current RMP coils on J-TEXT can only produce sufficient 2/1 and 3/1 RMP fields with a limited phase difference of Δξ∈[−75°, 75°]. In order to broaden the adjustable range of Δξ, a set of coils on the high field side (HFS) is proposed to generate 2/1 and 3/1 RMP fields with Δξ = 180°. As a result, RMPs with adjustable Δξ∈[−180°, 180°] and sufficient amplitudes could be achieved by applying the HFS coils and the low field side (LFS) coils. This work provides a feasible solution for flexible adjustment of the phase difference between m and m + 1 RMP, which might facilitate the study of major disruptions and their control.
- resonant magnetic perturbation,
- spectrum analysis,
- phase difference between 2/1 and 3/1 islands

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Acknowledgments

This work is supported by the National Magnetic Confinement Fusion Energy R&D Program of China (Nos. 2018YFE0309102 and 2019YFE03010004) and National Natural Science Foundation of China (Nos. 12075096, 11905078, and 51821005).

References (20)

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