紧凑型模块化强激光脉冲能源系统 compact modularized computer controlled conditioning system with high power laser pulsed power.pdfVIP

第33 卷 第4 期 高 电 压 技 术 VoI. 33 No. 4 2007 年 4 月 High VoItage Engineering Apr. 2007 ·17 · 紧凑型模块化强激光脉冲能源系统 赵 娟，曹科峰，曹宁翔，朱利君，陈 敏 （中国工程物理研究院流体物理研究所，绵阳621900 ） 摘 要：为简化线路，提高系统抗电磁干扰能力和安全性，研制了一套三级六路用于泵浦100 J 激光功率放大系统 氙灯的模块化脉冲能源系统。为此采用电压源、电流源和反馈电路构成氙灯模型，建立了以氙灯为负载的脉冲放 电系统的Pspice 模型，对脉冲放电系统的平波电感等器件参数进行了计算和优选。实验结果表明：理论计算与实 测放电参数吻合良好，电流峰值的理论值与实测值误差为3% 。该系统采用电容器一端接地的电路结构，选用真空 放电开关、低损耗电缆等低辐射器件，有效抑制了地电位抬高。采取光电隔离、屏蔽等措施进一步提高了系统的抗 电磁干扰能力。利用计算机控制技术、光电隔离技术和基于高压大电流真空开关的脉冲功率技术实现了系统的自 动化和模块化。 关键词：Pspice 模拟；程控；光电隔离；真空开关；模块化；激光；脉冲电源 中图分类号：TM833 文献标志码：A 文章编号：1003-6520 （2007 ）04-0021-05 Compact Modularized Computer Controlled Conditioning System with High Power Laser Pulsed Power ZHAO Juan ，CAO Ke-feng ，CAO Ning-xiang ，ZHU Li-jun ，CHEN Min （Institute of FIuid Physics ，China Academy of Engineering Physics ，Mianyang 621900 ，China ） Abstract ：A Xeon Iamp Pspice simuIation modeI is deveIoped according to the Gonze theory. A current source ，a voItage source and a feedback system compose the modeI which refIects the V-I characteristics of the Xeon Iamp. Based on the modeI ，a Pspice simuIation modeI of the puIsed power system of the 100J Iaser ampIifier is deveIoped. A three-stage six moduIes compact moduIarized computer-controIIed power conditioning system has been made and tested. The discharge cir- cuit of the system is weII anaIyzed based on the Pspice simuIation modeI. The main parts of the discharging circuit such as inductors are designed according to the caIcuIation. The parameters of the parts which make the discharging circuit into crit- icaI damp sta