Design of the configuration and waveform for HL-2M initial discharge

doi:10.16568/j.0254-6086.2021s2026

Nuclear Fusion and Plasma Physics ›› 2021, Vol. 41 ›› Issue (s2): 572-578.DOI: 10.16568/j.0254-6086.2021s2026

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Design of the configuration and waveform for HL-2M initial discharge

LI Jia-xian, ZHANG Jin-hua, LI Bo, SONG Xiao, WANG Shuo,XUE Lei, ZHENG Guo-yao, HL-2M Development Team

(Southwestern Institute of Physics, Chengdu 610041)

Received:2021-04-25 Revised:2021-07-26 Online:2021-11-15 Published:2022-01-10

HL-2M 初始放电位形及波形设计

李佳鲜，张锦华，李波，宋啸，王硕，薛雷，郑国尧，HL-2M 研制团队

(核工业西南物理研究院，成都 610041)

作者简介:李佳鲜(1984−)，男，四川广安人，博士，从事托卡马克平衡演化、放电模拟、集成模拟等工作。
基金资助:
国家磁约束核聚变能发展研究专项(2018YFE0301101)；国家自然科学基金(11775071)

Abstract

Abstract: The circular cross-section limiter configuration and divertor configuration that can be used for the
initial discharge of HL-2M tokamak are designed with EFIT. The designed field null configuration meets the
requirements of discharge breakdown conditions, that is, the average stray magnetic field in the field null area
does not exceed 20 Gauss. By evaluating the discharge volt-second consumption, and using the PF8 coil current to
compensate the stray magnetic field generated by the eddy current of the vacuum vessel, the self-consistent
discharge waveforms with the plasma current of 200kA for the limiter configuration and the divertor
configuration are designed respectively. The discharge waveform was used as the feed-forward waveform for
HL-2M discharge debugging, and the first plasma experiment with the limiter configuration was successfully
achieved.

Key words: HL-2M tokamak, Initial discharge, Field null, Eddy current, Plasma breakdown, Discharge waveform

摘要： 利用 EFIT 设计了可用于 HL-2M 初始放电的圆截面限制器位形以及偏滤器位形；设计了满足放电击
穿条件要求(零场区域平均杂散磁场应不超过 20G)的零场位形。综合分析放电过程伏秒数消耗及真空室涡流的影
响，使用 PF8 线圈电流补偿真空室涡流产生的杂散磁场，设计了等离子体电流 200kA 的限制器位形及偏滤器位形
的自洽的放电波形。将该放电波形作为放电调试的参考波形，成功实现了限制器位形的初始放电实验。

关键词: HL-2M 装置；初始放电；零场；涡流；等离子体击穿；放电波形

CLC Number:

TL61+2.1

LI Jia-xian, ZHANG Jin-hua, LI Bo, SONG Xiao, WANG Shuo, XUE Lei, ZHENG Guo-yao, HL-M Development Team . Design of the configuration and waveform for HL-2M initial discharge[J]. Nuclear Fusion and Plasma Physics, 2021, 41(s2): 572-578.

李佳鲜, 张锦华, 李波, 宋啸, 王硕, 薛雷, 郑国尧, HL-M 研制团队. HL-2M 初始放电位形及波形设计[J]. 核聚变与等离子体物理, 2021, 41(s2): 572-578.

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Design of the configuration and waveform for HL-2M initial discharge

HL-2M 初始放电位形及波形设计

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