一种激光触发真空开关的触发特性研究-中国电机工程学报.PDF
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第35 卷 第20 期 中 国 电 机 工 程 学 报 Vol.35 No.20 Oct. 20, 2015
5360 2015 年10 月20 日 Proceedings of the CSEE ©2015 Chin.Soc.for Elec.Eng.
DOI :10.13334/j.0258-8013.pcsee.2015.20.030 文章编号:0258-8013 (2015) 30-5360-07 中图分类号:TM 89
一种激光触发真空开关的触发特性研究
樊文芳,何正浩,王英,毛晓坡,林华中,刘壮
(强电磁工程与新技术国家重点实验室(华中科技大学) ,湖北省 武汉市 430074)
Experiment Research on the Trigger Characteristics of a Laser-Triggered Vacuum Switch
FAN Wenfang, HE Zhenghao, WANG Ying, MAO Xiaopo, LIN Huazhong, LIU Zhuang
(State Key Laboratory of Advanced Electromagnetic Engineering and Technology (Huazhong University of Science and Technology),
Wuhan 430074, Hubei Province, China)
ABSTRACT: An multi-electrode laser-triggered vacuum 能量一定的情况下,焦斑能量密度是影响开关触发特性主要
switch(LTVS) was developed to optimize the triggered vacuum 因素;开关极性是影响触发稳定性的主要因素。
switch(TVS) for the requirements of pulse power technologies. 关键词:激光触发真空开关;触发能量;延迟时间;抖动时
The relationship among applied voltages, laser energies, 间;触发导通机制
polarity, average energies of the spot and the trigger 0 引言
characteristics which mainly contain the delay time, jitter time
and minimum operating voltage were analyzed in detail. The 触发真空开关(triggered vacuum switch,TVS)
interaction between a thermal mechanism and an ion collision 是脉冲功率技术研究中的重要开关器件之一,对现
mechanism was proposed to explain the switch conduction, 代脉冲功率技术的发展起着重要作用。重频、高速、
which could provide the theory basis of the design of the TVS. 高压、大电流的触发真空开关,一直是相关科研工
It is concluded that the minimum delay time and jitter time can 作者关注和致力研究的发展方向[1-5] 。在1960 年左
reach 17 ns and ±10 ns respectively. The minimum operating 右,美国通用电气公司的Lafferty 开始研究TVS[6] 。
voltage of 60V is observed. Furthermore, the laser energy and 传统的TVS 主要是电脉冲触发,有沿面触发和场击
the applied vo
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