Investigation of Series-Connected IGBTs in Fast High-Voltage Circuit Breaker

被引：3
|
作者：
Dai, Yue [1 ,2 ]
Zhang, Ming [1 ,2 ]
Fan, Kunpeng [1 ,2 ]
Pan, Yuan [1 ,2 ]
Yu, Kexun [1 ,2 ]
Zhuang, Ge [1 ,2 ]
机构：
[1] State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan 430074, Peoples R China
来源：
JOURNAL OF FUSION ENERGY | 2015年 / 34卷 / 06期
关键词：
IGBT in series connection; Dynamic voltage balance; Two-stage active gate trigger time compensation; Field programmable gate array (FPGA);
D O I：
10.1007/s10894-015-9981-9
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：
The ECRH system on J-TEXT tokamak requires fast circuit breakers as switches to cut off the 80 kV power supply within 20 mu s when failure occurs. Series connected IGBTs is a better choice for the breaker than mechanical switch and thyristor in this case. The voltage balance among IGBTs is the main issue that needs investigation. This paper presents a two-stage active gate trigger time compensation method to ensure the voltage balance among IGBTs. The test environment consists of a 1500 V/10 A circuit with 3 IGBTs which are connected in series. The experimental result shows that the method can effectively improve the dynamic-voltage balance and has a certain extent meaning for the solution of voltage balance of series connected IGBTs .
引用
收藏
页码：1406 / 1410
页数：5
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