Research on Applications of TVS and Thyristor in a Pulsed Power Supply System used for EMG

被引：13

作者：

Han, Yongxia ^{[1
]}

Lin, Fuchang ^{[1
]}

Dai, Ling ^{[1
]}

Li, Hua ^{[1
]}

Wang, Lei ^{[1
]}

Bo, Luhai ^{[1
]}

Long, Zhaozhi ^{[1
]}

Peng, Bo ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Coll Elect & Elect Engn, Wuhan 430074, Hubei, Peoples R China

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2009年 / 16卷 / 04期

关键词：

EMG; pulsed power supply; PFN; triggered vacuum switch; thyristor; crowbar instructions;

D O I：

10.1109/TDEI.2009.5211843

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A compact pulsed power supply (PPS) system is important for the electromagnetic gun (EMG) system, which should supply high energy and large current. The paper presents the setup of compact PPS system based on high energy density capacitors. The PPS system includes ten 50 kJ modules, which can be triggered in sequence. Each module is composed of a capacitor (1000 mu F/10 kV), a pulse shaping inductor (20 mu H), a crowbar diodes with a crowbar resistor(30m Omega), as well as a main switch which can be a triggered vacuum switch (TVS) or thyristors. The peak value of the output current of each module is 70 kA. Characteristics of the TVS and thyristors are comparatively studied to determine their influence on the output current and energy. The requirements for the diode-stacks of the crowbar are fast-recovery, high voltage withstanding. A proper protection measure is used in order to protect the crowbar diodes from the damage of over-voltage when switch is fired. In the end, the overall discharge currents of the PPS triggered in sequence are presented.

引用

页码：979 / 984

页数：6

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