LI Dan; LIU Haifeng

doi:10.7498/aps.74.20241606

Abstract

In stellarators, error fields arise from the inevitable deviations in the fabrication and assembly of complex coil systems. The magnetic configurations of stellarators are predominantly generated by external coils and are highly sensitive to these error fields. Therefore, assessing the impact of coil deformations on stellarator magnetic topology is important. The purpose of this study is to explore the influence of error fields, caused by modular coil (MC) perturbations, on the magnetic topology of the Chinese First Quasi-axisymmetric Stellarator (CFQS). In this work, by changing the Fourier coefficients that represent the current-carrying surface (CCS) and the coil, two types of deformation coils, i.e. “in-surface” and “out-of-surface” disturbance on each MC can be obtained. Subsequently, three kinds of magnetic islands (ι = 2/4, 2/5 and 2/6) are used to identify coil deviations that have a significant influence on the CFQS magnetic configuration. Several important results are obtained as follows. i) The same deformation of a coil gives rise to various resonant error fields with different amplitudes. ii) The sensitivity of a resonant error field to the deformation of each coil is different. The in-surface disturbance of the most complex coil may not have a significant influence on the magnetic topology structure. iii) The sensitivity of the resonant error field to out-of-surface disturbance in the coil is higher than that to in-surface disturbance.

Keywords:

Authors and contacts

LI Dan,
LIU Haifeng

Corresponding author: LIU Haifeng, hfliu@swjtu.edu.cn

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 12175185, U22A20262, 12311540010), the National Key R&D Program of China (Grant No. 2022YFE03070001), the Science and Technology Plan Project of Sichuan Province, China (Grant No. 24NSFJQ0201), and the Fundamental Research Fund for the Central Universities, China (Grant No. 2682024ZTPY033).

FullText HTML

References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]
[36]

Cited By

DownLoad: Full-Size Img PowerPoint

			磁岛位形(n/m)
			2/4	2/5	2/6
线圈电流	I_MC/kA	MC1	312.5	312.5	406.3
		MC2	312.5	312.5	281.6
		MC3	312.5	312.5	281.6
		MC4	312.5	312.5	281.6
	I_TFC/kA	TFC_10	–60	–24	0
		TFC_32	–90	–36	0
		TFC_70	–90	–36	0
	I_PFC/kA	PFC_OV	0	0	–82
	I_PFC/kA	PFC_IV	0	0	41

DownLoad: CSV

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]
[36]

[1]	LAN Heng, LI Jiadong, CAO Yuhao, SHEN Junfeng, LI Jiacheng, XU Yuhong, SUN Tengfei, HE Mengyuan, FENG Yuxuan, WU Danni, CHENG Jun, LIU Haifeng, SHIMIZU Akihiro, WANG Xianqu, XUAN Weimin, ZHANG Meiyong, ZOU Qian, LUO Jun, YANG Quan, ZHANG Xin, LIU Hai, HUANG Jie, HU Jun, SHAO Junren, LI Wei, LI Yucai, ZHOU Hong, WANG Jie, SU Xiang, TANG Changjian. Development and preliminary application of high-frequency magnetic probe array on quasi-axisymmetric stellarator CFQS-T. Acta Physica Sinica, 2025, 74(17): 175202. doi: 10.7498/aps.74.20250957
[2]	Diao Bin, Xu Yan, Huang Xiu-Lin, Wang Yi-Bo. Study of tidal deformabilities of neutron stars using relativistic mean field theory containing δ mesons. Acta Physica Sinica, 2023, 72(2): 022601. doi: 10.7498/aps.72.20221599
[3]	Ren Zhen-Zhen, Shen Wei. Numerical simulations of fishbones driven by fast ions in negative triangularity tokamak. Acta Physica Sinica, 2023, 72(21): 215202. doi: 10.7498/aps.72.20230650
[4]	Su Xiang, Wang Xian-Qu, Fu Tian, Xu Yu-Hong. Suppression mechanism of equilibrium magnetic islands in CFQS low-$\boldsymbol \beta$ plasma. Acta Physica Sinica, 2023, 72(21): 215205. doi: 10.7498/aps.72.20230546
[5]	Wang Yi-Nong, Chu Peng-Cheng, Jiang Yao-Yao, Pang Xiao-Di, Wang Sheng-Bo, Li Pei-Xin. Proto-magnetars within quasiparticle model. Acta Physica Sinica, 2022, 71(22): 222101. doi: 10.7498/aps.71.20220795
[6]	Huang Jie, Li Mo-Shan, Qin Cheng, Wang Xian-Qu. Simulation of ion temperature gradient mode in Chinese First Quasi-axisymmetric Stellarator. Acta Physica Sinica, 2022, 71(18): 185202. doi: 10.7498/aps.71.20220729
[7]	Shen Yong, Dong Jia-Qi, He Hong-Da, Ding Xuan-Tong, Shi Zhong-Bing, Ji Xiao-Quan, Li Jia, Han Ming-Kun, Wu Na, Jiang Min, Wang Shuo, Li Ji-Quan, Xu Min, Duan Xu-Ru. Hollow current and reversed magnetic shear configurations in pellet injection discharges on Huanliuqi 2A tokamak. Acta Physica Sinica, 2021, 70(18): 185201. doi: 10.7498/aps.70.20210641
[8]	Chen Jian-Ling, Wang Hui, Jia Huan-Yu, Ma Zi-Wei, Li Yong-Hong, Tan Jun. Conductivity of neutron star crust under superhigh magnetic fields and Ohmic decay of toroidal magnetic field of magnetar. Acta Physica Sinica, 2019, 68(18): 180401. doi: 10.7498/aps.68.20190760
[9]	Qi Ke-Wu, Zhao Yu-Hong, Guo Hui-Jun, Tian Xiao-Lin, Hou Hua. Phase field crystal simulation of the effect of temperature on low-angle symmetric tilt grain boundary dislocation motion. Acta Physica Sinica, 2019, 68(17): 170504. doi: 10.7498/aps.68.20190051
[10]	Zhuo Chao, Du Jian-Bang. Shupe effect of fiber sensing coils in multidimensional thermal field. Acta Physica Sinica, 2018, 67(1): 010701. doi: 10.7498/aps.67.20170271
[11]	Chen Xing-Le, Lei Yin-Zhao. Analytical solutions to pulsed eddy current field excited by a differently oriented probe coil outside a conducting ferromagnetic pipe. Acta Physica Sinica, 2014, 63(24): 240301. doi: 10.7498/aps.63.240301
[12]	Zhong Jian, Fei Jian-Fang, Huang Si-Xun, Huang Xiao-Gang, Cheng Xiao-Ping. Application of the multi-parameters error model in cyclone wind retrieval with scatterometer data. Acta Physica Sinica, 2013, 62(15): 159302. doi: 10.7498/aps.62.159302
[13]	Ren Hong-Liang, Ding Pan-Feng, Li Xiao-Yan. Influences of axial position manipulation and misalignments of optical elements on radial trap position manipulation. Acta Physica Sinica, 2012, 61(21): 210701. doi: 10.7498/aps.61.210701
[14]	Li Lian-He, Liu Guan-Ting. A screw dislocation interacting with a wedge-shaped crack in one-dimensional hexagonal quasicrystals. Acta Physica Sinica, 2012, 61(8): 086103. doi: 10.7498/aps.61.086103
[15]	Li Chuan-Qi, Gu Bin, Mu Li-Li, Zhang Qing-Mei, Chen Mei-Hong, Jiang Yong. An MHD simulation study on the location and shape of magnetopause in equatorial plane. Acta Physica Sinica, 2012, 61(21): 219402. doi: 10.7498/aps.61.219402
[16]	Deng Li-Yun, Lan Hong-Mei, Liu Yue. Numerical study on Hall thruster magnetic configuration and its optimization. Acta Physica Sinica, 2011, 60(2): 025213. doi: 10.7498/aps.60.025213
[17]	Zha Xue-Jun, Zhu Si-Zheng, Yu Qing-Quan. Equilibrium optimization code opeq and results of applying it to HT-7U. Acta Physica Sinica, 2003, 52(2): 428-433. doi: 10.7498/aps.52.428
[18]	XU KUN-MING, LU DAO-FANG, YAO XI-XIAN. ZERO FIELD STEPS IN AN ANNULAR SYMMETRIC JOSEPHSON JUNCTION. Acta Physica Sinica, 1992, 41(1): 97-105. doi: 10.7498/aps.41.97
[19]	AN ZHI-GANG, P. H. Diamond. EFFECTS OF RESISTIVE INTERCHANGE INSTABILITIES ON ENERGY CONFINEMENT IN REVERSED-FIELD PINCH. Acta Physica Sinica, 1985, 34(3): 314-321. doi: 10.7498/aps.34.314
[20]	SHI BING-REN. EVOLUTION OF TOKAMAK PLASMA DURING FAST HEATING. Acta Physica Sinica, 1981, 30(9): 1196-1205. doi: 10.7498/aps.30.1196

Catalog

Vol. 74, Issue 5 - 2025-03-05

Metrics

Abstract views: 2862
PDF Downloads: 94
Cited By: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: LIU Haifeng, hfliu@swjtu.edu.cn

FullText HTML

References

Cited By

Catalog

Metrics

Authors

Referees

About Journal

About

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: LIU Haifeng, hfliu@swjtu.edu.cn

FullText HTML

References

Cited By

Catalog

Metrics

Publishing process

Authors

Referees

About Journal

About