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

文献类型：期刊论文

作者Hu, Wenhui1,2; 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
刊名NUCLEAR FUSION
出版日期2018-12-01
卷号58期号:12页码:8
关键词Alfven eigenmode feedback control real-time control ECRH NBI ECE
ISSN号0029-5515
DOI10.1088/1741-4326/aaddat
通讯作者Hu, Wenhui(huwh@ipp.ac.cn)
英文摘要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.
WOS关键词INTERNAL TRANSPORT BARRIERS ; PLASMA CONTROL ; WAVES ; SUPPRESSION ; INSTABILITY ; ITER
资助项目General Atomics under US Department of Energy[DE-FC02-04ER54698]
WOS研究方向Physics
语种英语
WOS记录号WOS:000444906100001
出版者IOP PUBLISHING LTD
资助机构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
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38978]  
专题合肥物质科学研究院_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
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.

入库方式： OAI收割

来源：合肥物质科学研究院

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