Theoretical Analysis of Triple Liquid Stub Tuner Impedance Matching for ICRH on Tokamaks

被引：3
|
作者：
Du Dan [1 ]
Gong Xueyu [2 ]
Yin Lan [1 ]
Xiang Dong [2 ]
Li Jingchun [2 ]
机构：
[1] Univ South China, Dept Math & Phys, Hengyang 421001, Peoples R China
[2] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China
来源：
PLASMA SCIENCE & TECHNOLOGY | 2015年 / 17卷 / 12期
基金：
中国国家自然科学基金;
关键词：
ICRH antenna; impedance matching; transmission line theory; ANTENNA; PLASMAS; SYSTEM;
D O I：
10.1088/1009-0630/17/12/17
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The impedance matching is crucial for continuous wave operation of ion cyclotron resonance heating (ICRH) antennae with high power injection into plasmas. A sudden increase in the reflected radio frequency power due to an impedance mismatch of the ICRH system is an issue which must be solved for present-day and future fusion reactors. This paper presents a method for theoretical analysis of ICRH system impedance matching for a triple liquid stub tuner under plasma operational conditions. The relationship of the antenna input impedance with the plasma parameters and operating frequency is first obtained using a global solution. Then, the relations of the plasma parameters and operating frequency with the matching liquid heights are indirectly obtained through numerical simulation according to transmission line theory and matching conditions. The method provides an alternative theoretical method, rather than measurements, to study triple liquid stub tuner impedance matching for ICRH, which may be beneficial for the design of ICRH systems on tokamaks.
引用
收藏
页码：1078 / 1082
页数：5
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