| HL-2M装置中心螺线管线圈电源变流器过流保护的仿真研究 |
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| 引用本文： | 李晨,李维斌,王雅丽,李青,王英翘,陈俊宏,宣伟民.HL-2M装置中心螺线管线圈电源变流器过流保护的仿真研究[J].核聚变与等离子体物理,2020,40(1):45-51. |
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| 作者姓名： | 李晨 李维斌 王雅丽 李青 王英翘 陈俊宏 宣伟民 |
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| 作者单位： | (核工业西南物理研究院，成都 610041) |
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| 摘 要： | 利用MATLAB仿真工具，搭建HL-2M中心螺线管(CS)电源系统模型，研究了CS电源变流器过流保护策略。通过仿真研究，为HL-2M CS电源系统中变流器制定了最优的过流保护策略，这为电源安全可靠的运行提供了理论依据。
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| 关 键 词： | 中心螺线管电源系统 变流器过流 仿真分析 最优保护策略 |
| 收稿时间： | 2019-01-03 |
Preliminary analysis of HL-2M hybrid operation scenario |
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| LI Chen,LI Wei-bin,WANG Ya-li,LI Qing,WANG Ying-qiao,CHEN Jun-hong,XUAN Wei-ming.Preliminary analysis of HL-2M hybrid operation scenario[J].Nuclear Fusion and Plasma Physics,2020,40(1):45-51. |
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| Authors: | LI Chen LI Wei-bin WANG Ya-li LI Qing WANG Ying-qiao CHEN Jun-hong XUAN Wei-ming |
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| Institution: | (Southwestern Institute of Physics, Chengdu 610041) |
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| 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 H98,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 βN is 3.47, H98,y2 is 1.14 and bootstrap current fraction is 51%. |
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| Keywords: | Central solenoid power supply system Converter overcurrent Simulation and analysis Optimal protection strategy |
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