层叠Blumlein纳秒脉冲形成线设计与实验  

Design and experiments of stacked Blumlein nano-second pulse forming lines

作　　者：谌怡[1] 刘毅[1] 王卫[1] 夏连胜[1] 张篁[1] 朱隽[1] 石金水[1] 章林文[1] 

机构地区：[1]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

出　　处：《强激光与粒子束》2014年第4期108-113,共6页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11035004);中国工程物理研究院科学技术发展基金项目(2013A0402018);核能技术开发项目

摘　　要：研究了一种结构紧凑型的多级层叠Blumlein纳秒脉冲形成线,从理论上分析了放电时回路各分布参数对层叠Blumlein脉冲形成线输出电压的影响,并利用PSpice模拟验证了各分布参数对层叠Blumlein脉冲形成线输出结果的影响,发现开关的导通电阻是制约输出电压幅值的主要因素,开关的分布电感对输出波形的影响大于负载分布电感的影响,基于时域有限差分法原理,利用XFDTD软件模拟了两级层叠Blumlein线的电磁耦合效应。开展了多级层叠Blumlein脉冲形成线实验,结果表明,基于陶瓷固态传输线和GaAs光导开关的层叠Blumlein脉冲形成线能够实现输出电压叠加,可用于产生ns量级脉宽的脉冲高压。A kind of compact stacked Blumlein nano-second pulse forming lines was studied in this paper,and the effect of circuit's distribution parameter on output voltage of 2-staged stacked Blumlein pulse forming lines(PFLs)was analyzed and simulated by PSpice.The results show that the switch's on-resistance reduces the amplitude of output voltage,and the influence of the switch's inductance is greater than the influence of the load's inductance.The electromagnetic coupling effect of 2-stage Blumlein PFLs with different stacked structures was simulated by using XFDTD based on the principle of finite difference time domain method.The experiments of multi-stage stacked Blumlein PFLs were performed.The results show that,stacked Blumlein PFLs, based on ceramic solid-state transmission lines and GaAs photoconductive switches,achieve the superposition of output voltage, which could generate a nano-second high-voltage pulse.

关 键 词：脉冲功率技术 固态传输线 GAAS光导开关 纳秒脉冲形成线 层叠Blumlein线 

分 类 号：TM836[电气工程—高电压与绝缘技术]