HL-2M混合运行方案初步分析

doi:10.16568/j.0254-6086.202001003

核聚变与等离子体物理 ›› 2020, Vol. 40 ›› Issue (1): 16-22.DOI: 10.16568/j.0254-6086.202001003

HL-2M混合运行方案初步分析

薛淼，郑国尧，薛雷，李佳鲜，黄文玉，谢金雨，简翔，陈佳乐

(核工业西南物理研究院，成都 610041)

收稿日期:2018-11-27 修回日期:2019-11-11 出版日期:2020-04-15 发布日期:2020-04-20
作者简介:薛淼(1991-)，男，黑龙江省呼兰县人，硕士研究生，主要从事托卡马克集成模拟研究。
基金资助:
国家自然科学基金项目(11775071，11575056)；国家磁约束聚变能发展研究专项(2018YFE0301101，2018YFE0301104)

Preliminary analysis of HL-2M hybrid operation scenario

XUE Miao, ZHENG Guo-yao, XUE Lei, LI Jia-xian,HUANG Wen-yu, XIE Jin-yu, JIAN Xiang, CHEN Jia-le

(Southwestern Institute of Physics, Chengdu 610041)

Received:2018-11-27 Revised:2019-11-11 Online:2020-04-15 Published:2020-04-20

摘要/Abstract

摘要：

采用OMFIT集成模拟平台，对在建的HL-2M的混合运行方案开展物理分析。在1MA等离子体电流和1.88T环向磁场条件下，利用电子回旋波和中性束注入等辅助加热和电流驱动方式来调制出混合运行所特有的芯部q≈1的平坦的安全因子剖面，其中欧姆电流和自举电流的份额分别为26%和42%，能量约束因子(H_98,y2)高达1.19。在混合运行的条件下，通过添加反向中性束注入，可以得到更高的比压值β_N。此外，优化离轴的电子回旋波电流驱动和增加在轴中性束注入功率，可以进一步实现完全非感应混合运行。在该方案下，β_N可达3.47、H_98,y2为1.14和自举电流份额达51%。

关键词: 混合运行, HL-2M装置, OMFIT集成模拟平台

Abstract:

The physics analysis of hybrid operation scenario for the new medium-sized tokamak HL-2M under construction is simulated, based on OMFIT integrated modeling framework. Under the condition of plasma current of 1MA and toroidal magnetic field of 1.88T, a hybrid operation scenario is achieved with a flat core q profile around 1 by implementing the auxiliary heating and current drive of electron cyclotron wave (ECW) and neutral beam injection (NBI). In this case, the fractions of ohmic current and bootstrap current are 26% and 42% respectively, and the energy confinement factor H_98,y2 is as high as 1.19. In order to obtain a higher normalized beta βN under the condition of hybrid operation, a counter injection of NBI must be added. Moreover, optimizing off-axis ECCD and increasing on-axis NBI power can contribute to fully non-inductive hybrid operation, in which the β_Nis 3.47, H_98,y2 is 1.14 and bootstrap current fraction is 51%.

Key words: Hybrid operation, HL-2M tokamak, OMFIT integrated modeling framework

中图分类号:

TL61+4

薛淼，郑国尧，薛雷，李佳鲜，黄文玉，谢金雨，简翔，陈佳乐. HL-2M混合运行方案初步分析[J]. 核聚变与等离子体物理, 2020, 40(1): 16-22.

XUE Miao, ZHENG Guo-yao, XUE Lei, LI Jia-xian,HUANG Wen-yu, XIE Jin-yu, JIAN Xiang, CHEN Jia-le. Preliminary analysis of HL-2M hybrid operation scenario[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2020, 40(1): 16-22.

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HL-2M混合运行方案初步分析

Preliminary analysis of HL-2M hybrid operation scenario

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