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具有预脉冲屏蔽板的水介质自击穿开关的电路模拟

Simulation of water pulse forming line switch with prepulse suppression ground plane

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摘要

介绍了具有预脉冲屏蔽板的水介质脉冲形成开关的结构和等效电路模型,给出模型中等效参数的计算方法.使用Pspice软件对该模型进行了电路模拟,着重分析预脉冲屏蔽板结构对输入、输出脉冲的影响,同时分析了开关电感和电极间隙电容对电压波形的作用.模拟结果表明,开关输入、输出端的对地电容对电压波形影响很大,开关电感和电极间隙电容的影响相对较小.对比"闪光二号"加速器上进行的水介质自击穿开关实验波形和模拟波形,说明在一定范围内等效模型是可以采用的.设计开关结构时,应先合理调整屏蔽板的位置以确定其对地电容,尽量兼顾减小开关电容和电感,屏蔽板开孔大小需选取适当.

Abstract

The configuration and simulation model of water pulse forming line switch with prepulse suppression ground plane (PPS) were introduced in this paper. The influence of the PPS was analyzed using Pspice. As well as the capacitances between the electrodes or input/output line and PPS(Cpi and Cpo), the inductance(Lp) and capacitance(Cp) of the gaps suppresses the prepulse. The simulation results indicate that the influence of the latter is small. The wave-shapes of the experiment on Flash-Ⅱ accelerator are compared with that of simulation. It suggests that the equivalent circuit model is feasible in water switch design. Cpi and Cpo of the switch must make certain by adjusting the position of PPS firstly, Lp and Cp of the switch should be as small as possible, and the size of holes on PPS must be suitable.

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中图分类号:TN782

所属栏目:粒子束及加速器技术

基金项目:国防科技基础研究基金资助课题

收稿日期:2004-05-28

修改稿日期:2004-07-14

网络出版日期:2004-12-15

作者单位    点击查看

夏明鹤:中国工程物理研究院,研究生部,四川,绵阳,621900中国工程物理研究院,流体物理研究所,四川,绵阳,621900
谢卫平:中国工程物理研究院,流体物理研究所,四川,绵阳,621900
李洪涛:中国工程物理研究院,流体物理研究所,四川,绵阳,621900
杨自祥:中国工程物理研究院,流体物理研究所,四川,绵阳,621900
徐敏:中国工程物理研究院,流体物理研究所,四川,绵阳,621900

备注:夏明鹤(1974-),男,助理研究员,从事脉冲功率技术研究工作;绵阳919-108信箱;E-mail:Xiamh@china.com.

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引用该论文

XIA Ming-he,XIE Wei-ping,LI Hong-tao,YANG Zi-xiang,XU Min. Simulation of water pulse forming line switch with prepulse suppression ground plane[J]. High Power Laser and Particle Beams, 2004, 16(12): 1621-1625

夏明鹤,谢卫平,李洪涛,杨自祥,徐敏. 具有预脉冲屏蔽板的水介质自击穿开关的电路模拟[J]. 强激光与粒子束, 2004, 16(12): 1621-1625

被引情况

【1】丛培天,蒯斌,邱爱慈,王亮平,吴撼宇,曾正中,贾伟. 脉冲电压下的自击穿水介质开关击穿特性和电路参数实验研究. 强激光与粒子束, 2005, 17(9): 1414--1

【2】夏明鹤,谢卫平,李洪涛,杨自祥,丰树平,卫兵,傅贞,任靖,孟维涛. 多通道自击穿水开关测试方法研究. 强激光与粒子束, 2005, 17(11): 1744--1

【3】夏明鹤,卫兵,王玉娟,谢卫平,李洪涛,杨自祥,傅贞,任靖,孟维涛. 水介质自击穿开关放电参数测试. 强激光与粒子束, 2006, 18(1): 151-154

【4】夏明鹤,王勐,王玉娟,计策 李洪涛,关永超,杨自祥,谢卫平,丰树平. 4 MV同轴-三平板型水介质自击穿开关设计. 强激光与粒子束, 2006, 18(3): 496-500

【5】夏明鹤,谢卫平,李洪涛,王玉娟,杨自祥,邓建军,丰树平,卫兵,吴守东,任靖 孟维涛,傅贞. 低预脉冲水介质多通道自击穿开关实验研究. 强激光与粒子束, 2006, 18(8): 1363-1366

【6】夏明鹤,姚斌,傅贞,王治,李勇,王玉娟,计策,谢卫平,李洪涛,丰树平. 4 MV同轴-三平板型水介质自击穿开关的电路模拟与实验. 强激光与粒子束, 2010, 22(7): 1692-1696

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