Active real-time control of Alfven eigenmodes by neutral beam and electron cyclotron heating in the DIII-D tokamak

doi:10.1088/1741-4326/aaddat

	Active real-time control of Alfven eigenmodes by neutral beam and electron cyclotron heating in the DIII-D tokamak
	Hu, Wenhui 1,2; Olofsson, K. E. J.3; Welander, A. S.3; Heidbrink, W. W.4; Van Zeeland, M. A.3; Austin, M. E.5; Collins, C. S.3; Humphreys, D. A.3; Kolemen, E.6; Li, Jiangang1 ; Xiao, Bingjia1
	2018-12-01
发表期刊	NUCLEAR FUSION
ISSN	0029-5515
通讯作者	Hu, Wenhui(huwh@ipp.ac.cn)
摘要	A real-time Alfven cigemnode (AE) controller is designed and implemented for the first time in DIII-D. The experimental test consists of two parts: (i) open-loop and feedback control using neutral beam power as an actuator and (ii) open-loop control using electron cyclotron heating (ECH) as an actuator. Part (i) demonstrates the feasibility of varying neutral beam power injected into plasma to control overall AE amplitude as well as the successful application of real-time electron cyclotron emission (ECE) as the process controller's AE amplitude sensor. The temporal evolution of AE amplitude at a specific radial location has also been controlled by selecting a subset of the radial ECE array. Part (ii) finds a complicated dependence of AE evolution on ECH power and more dedicated investigation is needed to explore the dynamical ECM-control model. Additionally, the ratio between TRANSP calculated neutron rate and measured neutron rate is found to correspond closely with AE amplitudes in discharges with feedback control, verifying that this ratio can be another sensor for the control system.
关键词	Alfven eigenmode feedback control real-time control ECRH NBI ECE
DOI	10.1088/1741-4326/aaddat
关键词[WOS]	INTERNAL TRANSPORT BARRIERS ; PLASMA CONTROL ; WAVES ; SUPPRESSION ; INSTABILITY ; ITER
收录类别	SCI
语种	英语
资助项目	General Atomics under US Department of Energy[DE-FC02-04ER54698] ; General Atomics under US Department of Energy[DE-FC02-04ER54698]
项目资助者	General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy ; General Atomics under US Department of Energy
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000444906100001
出版者	IOP PUBLISHING LTD
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/38978
专题	中科院等离子体物理研究所
通讯作者	Hu, Wenhui
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Gen Atom, POB 85608, San Diego, CA 92186 USA 4.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA 5.Univ Texas Austin, Austin, TX 78712 USA 6.Princeton Univ, Princeton, NJ 08544 USA
第一作者单位	中科院等离子体物理研究所
通讯作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Hu, Wenhui,Olofsson, K. E. J.,Welander, A. S.,et al. Active real-time control of Alfven eigenmodes by neutral beam and electron cyclotron heating in the DIII-D tokamak[J]. NUCLEAR FUSION,2018,58(12):8.
APA	Hu, Wenhui.,Olofsson, K. E. J..,Welander, A. S..,Heidbrink, W. W..,Van Zeeland, M. A..,...&Xiao, Bingjia.(2018).Active real-time control of Alfven eigenmodes by neutral beam and electron cyclotron heating in the DIII-D tokamak.NUCLEAR FUSION,58(12),8.
MLA	Hu, Wenhui,et al."Active real-time control of Alfven eigenmodes by neutral beam and electron cyclotron heating in the DIII-D tokamak".NUCLEAR FUSION 58.12(2018):8.