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

Citation:

PDF (1740 KB)

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

FullText(HTML)

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)

References

[1]	Wesson J A et al 1989 Nucl. Fusion 29 641 doi: 10.1088/0029-5515/29/4/009
[2]	Suttrop W et al 1997 Nucl. Fusion 37 119 doi: 10.1088/0029-5515/37/1/I09
[3]	Choi M J et al 2016 Nucl. Fusion 56 066013 doi: 10.1088/0029-5515/56/6/066013
[4]	Sweeney R et al 2018 Nucl. Fusion 58 056022 doi: 10.1088/1741-4326/aaaf0a
[5]	Du X D et al 2019 Phys. Plasmas 26 042505 doi: 10.1063/1.5085329
[6]	Hu Q M et al 2019 Nucl. Fusion 59 016005 doi: 10.1088/1741-4326/aaeb57
[7]	Paz-Soldan C et al 2014 Nucl. Fusion 54 073013 doi: 10.1088/0029-5515/54/7/073013
[8]	Park J K et al 2018 Nat. Phys. 14 1223 doi: 10.1038/s41567-018-0268-8
[9]	Schaffer M J et al 2009 ELM suppression by resonant magnetic perturbations at DⅢ-D 23rd IEEE/NPSS Symp. on Fusion Engineering (San Diego) (Piscataway, NJ: IEEE) 1
[10]	Suttrop W et al 2009 Fusion Eng. Des. 84 290 doi: 10.1016/j.fusengdes.2008.12.044
[11]	Sun Y W et al 2017 Nucl. Fusion 57 036007 doi: 10.1088/1741-4326/57/3/036007
[12]	Huang Z et al 2020 Nucl. Fusion 60 064003 doi: 10.1088/1741-4326/ab8859
[13]	Wang N C et al 2022 Rev. Mod. Plasma Phys. 6 26 doi: 10.1007/s41614-022-00090-4
[14]	Sun Y W et al 2015 Plasma Phys. Control. Fusion 57 045003 doi: 10.1088/0741-3335/57/4/045003
[15]	Mao F Y et al 2022 Plasma Sci. Technol. 24 124002 doi: 10.1088/2058-6272/ac9f2e
[16]	Zhang H W et al 2019 Phys. Plasmas 26 112502 doi: 10.1063/1.5116669
[17]	Fitzpatrick R 1993 Nucl. Fusion 33 1049 doi: 10.1088/0029-5515/33/7/I08
[18]	Fitzpatrick R 1998 Phys. Plasmas 5 3325 doi: 10.1063/1.873000
[19]	Zhang H W et al 2021 Plasma Phys. Control. Fusion 63 035011 doi: 10.1088/1361-6587/abd304
[20]	Hu Q M et al 2016 Nucl. Fusion 56 092009 doi: 10.1088/0029-5515/56/9/092009

[1]	Jian YANG (杨健), Angjian WU (吴昂键), Xiaodong LI (李晓东), Yang LIU (刘阳), Fengsen ZHU (朱凤森), Zhiliang CHEN (陈志良), Jianhua YAN (严建华), Ruijuan CHEN (陈瑞娟), Wangjun SHEN (沈望俊). Experimental and simulation investigation of electrical and plasma parameters in a low pressure inductively coupled argon plasma[J]. Plasma Science and Technology, 2017, 19(11): 115402. DOI: 10.1088/2058-6272/aa885f
[2]	Yunhai HONG (洪运海), Chengxun YUAN (袁承勋), Jieshu JIA (贾洁姝), Ruilin GAO (高瑞林), Ying WANG (王莹), Zhongxiang ZHOU (周忠祥), Xiaoou WANG (王晓鸥), Hui LI (李辉), Jian WU (吴建). Propagation characteristics of microwaves in dusty plasmas with multi-collisions[J]. Plasma Science and Technology, 2017, 19(5): 55301-055301. DOI: 10.1088/2058-6272/aa5b29
[3]	WU Zhonghang (吴忠航), LIANG Rongqing (梁荣庆), Masaaki NAGATSU (永津雅章), CHANG Xijiang (昌锡江). The Characteristics of Columniform Surface Wave Plasma Excited Around a Quartz Rod by 2.45 GHz Microwaves[J]. Plasma Science and Technology, 2016, 18(10): 987-991. DOI: 10.1088/1009-0630/18/10/04
[4]	ZHANG Lin (张林), OUYANG Jiting (欧阳吉庭). Microwaves Scattering by Underdense Inhomogeneous Plasma Column[J]. Plasma Science and Technology, 2016, 18(3): 266-272. DOI: 10.1088/1009-0630/18/3/09
[5]	WANG Lijun(王立军), HUANG Xiaolong(黄小龙), JIA Shenli(贾申利), ZHOU Xin(周鑫), SHI Zongqian(史宗谦). Modeling and Simulation of Deflected Anode Erosion in Vacuum Arcs[J]. Plasma Science and Technology, 2014, 16(3): 226-231. DOI: 10.1088/1009-0630/16/3/10
[6]	HUO Wenqing (霍文青), GUO Shijie (郭世杰), DING Liang (丁亮), XU Yuemin (徐跃民). Upper Hybrid Resonance of Microwaves with a Large Magnetized Plasma Sheet[J]. Plasma Science and Technology, 2013, 15(10): 979-984. DOI: 10.1088/1009-0630/15/10/04
[7]	LIN Zhihong (林志宏), S. ETHIER, T. S. HAHM, W. M. TANG. Verification of Gyrokinetic Particle Simulation of Device Size Scaling of Turbulent Transport[J]. Plasma Science and Technology, 2012, 14(12): 1125-1126. DOI: 10.1088/1009-0630/14/12/17
[8]	YANG Fei (杨飞), RONG Mingzhe (荣命哲), WU Yi (吴翊), SUN Hao (孙昊), MA Ruiguang (马瑞光), NIU Chunping (纽春萍). Numerical Simulation of the Eddy Current Effects in the Arc Splitting Process[J]. Plasma Science and Technology, 2012, 14(11): 974-979. DOI: 10.1088/1009-0630/14/11/05
[9]	WANG Lijun (王立军), YANG Dingge (杨鼎革), JIA Shenli (贾申利), WANG Liuhuo (王流火), SHI Zongqian (史宗谦). Vacuum Arc Characteristics Simulation at Different Moments Under Power-Frequency Current[J]. Plasma Science and Technology, 2012, 14(3): 227-234. DOI: 10.1088/1009-0630/14/3/08
[10]	DING Liang (丁亮), HUO Wenqing (霍文青), YANG Xinjie (杨新杰), XU Yuemin (徐跃民). The Interaction of C-Band Microwaves with Large Plasma Sheets[J]. Plasma Science and Technology, 2012, 14(1): 9-13. DOI: 10.1088/1009-0630/14/1/03