Numerical analysis of the optimized performance of the electron cyclotron wave system in a HL-2M tokamak

doi:10.1088/1674-1056/25/4/045201

中国物理B ›› 2016, Vol. 25 ›› Issue (4): 45201-045201.doi: 10.1088/1674-1056/25/4/045201

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Numerical analysis of the optimized performance of the electron cyclotron wave system in a HL-2M tokamak

Jing-Chun Li(李景春), Xue-Yu Gong(龚学余), Jia-Qi Dong(董家齐), Jun Wang(王俊), Lan Yin(尹岚)

1 School of Nuclear Science and Technology, University of South China, Hengyang 421001, China;
2 Southwestern Institute of Physics, P O Box 432, Chengdu 610041, China;
3 School of Mathematics and Physics, University of South China, Hengyang 421001, China

收稿日期:2015-06-03 修回日期:2015-11-30 出版日期:2016-04-05 发布日期:2016-04-05
通讯作者: Jia-Qi Dong E-mail:gongxueyu@126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11375085, 11405082, 11505092，11475083, and 11375053), the National Magnetic Confinement Fusion Science Program of China (Grant Nos. 2013GB104004, 2013GB111000, 2014GB107000, and 2014GB108002), and the Natural Science Foundation of Hunan Province, China (Grant No. 2015JJ4044).

Numerical analysis of the optimized performance of the electron cyclotron wave system in a HL-2M tokamak

Jing-Chun Li(李景春)¹, Xue-Yu Gong(龚学余)¹, Jia-Qi Dong(董家齐)², Jun Wang(王俊)², Lan Yin(尹岚)³

1 School of Nuclear Science and Technology, University of South China, Hengyang 421001, China;
2 Southwestern Institute of Physics, P O Box 432, Chengdu 610041, China;
3 School of Mathematics and Physics, University of South China, Hengyang 421001, China

Received:2015-06-03 Revised:2015-11-30 Online:2016-04-05 Published:2016-04-05
Contact: Jia-Qi Dong E-mail:gongxueyu@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11375085, 11405082, 11505092，11475083, and 11375053), the National Magnetic Confinement Fusion Science Program of China (Grant Nos. 2013GB104004, 2013GB111000, 2014GB107000, and 2014GB108002), and the Natural Science Foundation of Hunan Province, China (Grant No. 2015JJ4044).

摘要/Abstract

摘要： The capabilities of current drive, neoclassical tearing mode (NTM) stabilization, and sawtooth control are analyzed for the electron-cyclotron wave (ECW) system in a HL-2M tokamak. Better performance of the upper launcher is demonstrated in comparison with that of a dropped upper launcher, in terms of J_EC/J_bs for NTM stabilization and I_ECCD/(Δρ_tor)² for sawtooth control. 1-MW ECW power is enough for the 3/2 NTM stabilization, and 1.8-MW ECW power is required to suppress 2/1 NTM in a single null divertor equilibrium with 1.2-MA toroidal current with the upper launcher. Optimization simulation of electron-cyclotron current drive (ECCD) is carried out for three mirrors in an equatorial port, indicating that the middle mirror has a good performance compared with the top and bottom mirrors. The results for balanced co-and counter-ECCD in an equatorial port are also presented.

关键词: HL-2M, electron-cyclotron current drive, neoclassical tearing modes, sawtooth

Abstract: The capabilities of current drive, neoclassical tearing mode (NTM) stabilization, and sawtooth control are analyzed for the electron-cyclotron wave (ECW) system in a HL-2M tokamak. Better performance of the upper launcher is demonstrated in comparison with that of a dropped upper launcher, in terms of J_EC/J_bs for NTM stabilization and I_ECCD/(Δρ_tor)² for sawtooth control. 1-MW ECW power is enough for the 3/2 NTM stabilization, and 1.8-MW ECW power is required to suppress 2/1 NTM in a single null divertor equilibrium with 1.2-MA toroidal current with the upper launcher. Optimization simulation of electron-cyclotron current drive (ECCD) is carried out for three mirrors in an equatorial port, indicating that the middle mirror has a good performance compared with the top and bottom mirrors. The results for balanced co-and counter-ECCD in an equatorial port are also presented.

Key words: HL-2M, electron-cyclotron current drive, neoclassical tearing modes, sawtooth

中图分类号: (Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid))

52.35.Hr

52.55.Fa (Tokamaks, spherical tokamaks) 52.55.Wq (Current drive; helicity injection) 52.35.Py (Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))

李景春, 龚学余, 董家齐, 王俊, 尹岚. Numerical analysis of the optimized performance of the electron cyclotron wave system in a HL-2M tokamak[J]. 中国物理B, 2016, 25(4): 45201-045201.

Jing-Chun Li(李景春), Xue-Yu Gong(龚学余), Jia-Qi Dong(董家齐), Jun Wang(王俊), Lan Yin(尹岚). Numerical analysis of the optimized performance of the electron cyclotron wave system in a HL-2M tokamak[J]. Chin. Phys. B, 2016, 25(4): 45201-045201.

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Numerical analysis of the optimized performance of the electron cyclotron wave system in a HL-2M tokamak

Numerical analysis of the optimized performance of the electron cyclotron wave system in a HL-2M tokamak

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