一体化高压触发器绝缘隔板结构优化研究  

Structure Optimization of High Voltage Trigger Insulation Barrier

作　　者：闫文博 黄超[1,2] 易爱平 李高鹏[1] 汪由胜 陈正阁[1,2] 柴童星 王淏 沈炎龙 薛全喜 黄珂[1,2] YAN Wenbo;HUANG Chao;YI Aiping;LI Gaopeng;WANG Yousheng;CHEN Zhengge;CHAI Tongxing;WANG Hao;SHEN Yanlong;XUE Quanxi;HUANG Ke(Northwest Institute of Nuclear Technology;State Key Laboratory of Laser Interaction With Matter,Xi’an 710024,China)

机构地区：[1]西北核技术研究所,西安710024 [2]激光与物质相互作用国家重点实验室,西安710024

出　　处：《现代应用物理》2023年第1期54-60,87,共8页Modern Applied Physics

基　　金：激光与物质相互作用国家重点实验室基金资助项目(SKLLIM1901Z,SKLLIM1911)。

摘　　要：一体化高压触发器作为高功率准分子激光器系统的同步控制器件,为激光放大器的气体火花开关提供触发脉冲。提高触发器的输出电压有助于改善激光放大器的同步性能,还需解决充电过程中的自放电问题。为此,在高压腔体内部加入绝缘隔板提升腔体内的直流充电电压。基于静电场仿真和放电等离子体仿真优化设计绝缘隔板的尺寸和位置参数,通过实验对仿真结果进行验证。使用静电场仿真分析触发器腔体内放电气体区域,建立与该放电区真实模型等效的缩比模型,通过放电等离子体仿真模拟带有不同尺寸和位置隔板气体间隙的击穿电压,选出击穿电压最高时所对应的隔板尺寸和隔板位置作为隔板的优化设计方案。与无隔板的情况相比,优化后的气体间隙的平均击穿电压由58.42 kV提升到84.33 kV,实验结果和仿真计算结果较为一致。本文的优化方案提高了直流击穿电压,解决了触发器充电时的自放问题,为绝缘结构优化提供一种新方法。Integrated high-voltage trigger is a synchronous control device for the high power excimer laser system.Improving the output voltage of the high-voltage trigger is beneficial for high power excimer laser system to realize high precision synchronous operation.To improve the output voltage,the insulation barrier inside the high-voltage trigger is optimized by electrostatic field simulation and plasma discharge simulation,and the simulation results are verified by experiments.First,the discharge region is found inside the high-voltage trigger by the electrostatic field simulation.Then,the scaled model equivalent to the real model of the discharge region is established.The size and the location of the barrier are optimized by the plasma discharge simulation of the scaled model.Using the optimized barrier,the breakdown voltage of gas gap inside the trigger is improved from 58.42 kV to 84.33 kV during the experiment,which is consistent with the simulation results.The innovation of the research lies in the optimizing method.In this method,electrostatic field simulation and discharge plasma simulation are both used,which optimized the size and position parameters of the insulation barrier,providing a new research method for the optimization of insulation structure.

关 键 词：一体化高压触发器 绝缘隔板 结构优化 静电场仿真 放电等离子体仿真 

分 类 号：TM853[电气工程—高电压与绝缘技术] O434[机械工程—光学工程]