Real-time fast ferrite ICRF tuning system on the Alcator C-Mod tokamak

被引：26
作者：
Lin, Y. [1 ]
Binus, A. [1 ]
Wukitch, S. J. [1 ]
机构：
[1] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA
来源：
FUSION ENGINEERING AND DESIGN | 2009年 / 84卷 / 01期
关键词：
ICRF; Matching; Ferrite tuner; Real-time; Alcator C-Mod tokamak; ION-CYCLOTRON; MATCHING SYSTEM; FREQUENCIES; PLASMAS; TUNER;
D O I：
10.1016/j.fusengdes.2008.08.044
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
A real-time ion cyclotron range of frequencies (ICRF) antenna matching system has been successfully implemented on Alcator C-Mod. This is a triple-stub tuning system working at 80 MHz, where one stub acts as a pre-matching stub and the other two stubs use fast ferrite tuners (FFTs) to accomplish fast tuning. It utilizes a digital controller for feedback control (200 mu s per iteration) using real-time antenna loading measurements as inputs and the coil currents to the FFT as outputs. The system has achieved and maintained matching for a large range of plasma parameters, including L-mode, H-mode, and plasmas with edge localized modes. It has succeeded in delivering up to 1.85 MW net rf power into H-mode plasmas at maximum voltage or 37 kV on the unmatched side of the matching system. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：33 / 37
页数：5
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