Design of the power supply system for the plasma current modulation on J-TEXT tokamak

被引:4
|
作者
Zhang, M. [1 ]
Shao, J. [1 ]
Ma, S. X. [1 ]
Liang, X. [1 ]
Yu, K. X. [1 ]
Pan, Y. [1 ]
机构
[1] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
关键词
Plasma current modulation; Multilevel cascade circuit; Coupled inductor; Power supply;
D O I
10.1016/j.fusengdes.2016.04.039
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
In order to further study the influence of current modulation parameters on suppressing tearing instability, the plasma current should be modulated in a wider range. So a modification scheme is designed to improve the performance of ohmic heating power supply system on J-TEXT tokamak. A multilevel cascade circuit with carrier phase-shifted PWM technique has been proposed. Coupled inductors are connected in the form of cyclic symmetry to restrain the circulating current caused by multiple paralleled branches. The simulation proves this proposed current modulation power supply system matches output requirement and achieves good current sharing effect. Finally, a prototype is designed, and the experiment results can verify the correctness of the simulation model well. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:92 / 97
页数:6
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