小型场畸变气体开关的击穿抖动特性  

Breakdown jitter characteristics of small field distortion gas switch

作　　者：张恺烨 宋法伦[2] 张北镇[2] 张琦 甘延青[2] 龚海涛[2] 金晓[2] Zhang Kaiye;Song Falun;Zhang Beizhen;Zhang Qi;Gan Yanqing;Gong Haitao;Jin Xiao(Graduate University of China Academy of Engineering Physics,Beijing 100088,China;Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics, CAEP,P.O.Box 919-1015,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院研究生部,北京100088 [2]中国工程物理研究院应用电子学研究所,高功率微波技术重点实验室,四川绵阳621900

出　　处：《强激光与粒子束》2018年第10期84-89,共6页High Power Laser and Particle Beams

摘　　要：基于高功率重复频率脉冲功率源的应用需求,研制了一种三电极场畸变结构气体火花间隙开关,并开展了重复频率条件下的触发特性研究。实验研究了场畸变火花间隙开关的触发特性随重复频率、气体成分、工作压强和工作系数的变化关系,计算了气体开关的触发击穿时延和抖动参数,分析了影响开关触发特性的主要因素。实验结果表明:气体开关触发击穿的抖动随着重复频率增加而增大;填充气体中SF6和N2体积比1∶1时,混合气体的综合性能较好;工作系数主要影响开关第二放电火花间隙(间隙2)的击穿抖动。This paper presents the design of a repetitive frequency gas spark switch.The switch adopts a three-electrode field-distortion structure,which has the advantages of small size and compactness,and it can work at voltage 100 kV,current 10 kA.Experimental study of the trigger characteristics of this field distortion spark gap switch were carried out with the changes in frequency,gas composition,working pressure and work coefficient.The breakdown time delay and jitter of the switch are calculated,and the main factors influencing the breakdown characteristics of the switch are analyzed.The experimental results show that the time jitter of the switch increases with the repetitive frequency.The switch has better performance when filled with gas mixture of SF 6 and N 2 of volumetric ratio of 1∶1,the working coefficient mainly affects the time jitter of the second discharge spark gap(gap 2).

关 键 词：气体开关 抖动 脉冲功率技术 

分 类 号：TM834[电气工程—高电压与绝缘技术]