强激光与粒子束, 2016, 28 (2): 025005, 网络出版: 2016-03-24   

100 kV重频气体开关初步研究及应用

Investigation and application of 100 kV repetitive gas switches
作者单位
中国工程物理研究院 流体物理研究所, 脉冲功率科学与技术重点实验室, 四川 绵阳 621900
摘要
为了减小脉冲功率源装置的体积,对三电极气体开关和两电极气体开关的结构进行了小型化设计。采用电磁场仿真软件对局部结构进行优化,对初步设计的触发开关和自击穿开关在不同SF6气压(0~0.2 MPa)、不同开关间隙条件下的击穿电压及触发工作电压等进行了实验研究。结果表明:设计的触发开关和自击穿开关在0~0.2 MPa气压范围内,自击穿电压随气压具有很好的线性关系;自击穿开关间隙为8 mm,改变气压(0.1~0.2 MPa)可实现自击穿电压90~125 kV可调;触发开关主间隙为7 mm,改变气压(0.1~0.2 MPa)可实现触发工作电压40~95 kV 可调;初步估算,触发开关和自击穿开关的工作电感均约20 nH。利用重频脉冲电源,测试了开关的重频工作能力,在工作电压80 kV、导通电流约20 kA的条件下,重复工作频率在20 Hz以上。此外,利用研制的开关构建了八级紧凑型Marx发生器,实现了5和10 Hz重频多脉冲输出。
Abstract
The tri-electrode gas switch and two-electrode rail-gap switch were designed. Experiments for breakdown-voltage and repetitive operation of these switches were done in different gas pressure and gap conditions. The results show the relation between breakdown-voltage and gas pressure is linear. Breakdown-voltage of two-electrode rail-gap switch with 8 mm gap can be adjusted from 90 to 125 kV at gas pressure 0.1 to 0.2 MPa. Operating voltage of trigger switch with 7 mm gap can be adjusted from 40 to 95 kV. Repetitive operation rate of these switches was up to 20 Hz with 20 kA current. Based on these switches, an 8-stage compact Marx generator was setup. Multi-pulse output with 5 or 10 Hz repetitive rate was gained in experiments. The output peak power was about 7 GW for 5 Hz, and 3.5 GW for 10 Hz with pulse width (FWHM) of 150 ns.

伍友成, 耿力东, 何泱, 戴文峰, 曹龙博, 冯传均, 王敏华, 付佳斌, 杨宇, 张南川, 郝世荣. 100 kV重频气体开关初步研究及应用[J]. 强激光与粒子束, 2016, 28(2): 025005. Wu Youcheng, Geng Lidong, He Yang, Dai Wenfeng, Cao Longbo, Feng Chuanjun, Wang Minhua, Fu Jiabin, Yang Yu, Zhang Nanchuan, Hao Shirong. Investigation and application of 100 kV repetitive gas switches[J]. High Power Laser and Particle Beams, 2016, 28(2): 025005.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!