MARX发生器电流线圈的设计与实验  

Design and experiment of current coil for Marx generation

作　　者：康军军[1] 卿燕玲[1] 傅贞[1] 计策[1] 丰树平[1] Kang Junjun;Qing Yanling;Fu Zhen;Ji Ce;Feng Shuping(Institute of Fluid Physics,CAEP,P.O.Box919-108,Mianyang621900,China)

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《强激光与粒子束》2018年第12期88-91,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11605181;11605188)

摘　　要：为测量Marx发生器输出电流,设计了外积分式罗可夫斯基线圈。采用电容器放电的方式进行线下标定确定刻度因素,采用盘式TEM室进行线圈的方波响应实验,实验结果与等效电路模拟仿真吻合。线圈的响应时间为16ns。模拟仿真分析了Marx连接假负载实验中,实测电流波形后沿衰落较快且脉冲结束后基线不回零的问题。通过调整积分器的RC时间常数,增加线圈的低频响应能力可消除该失真。改进后的线圈实验结果与理论分析一致。A self-integrating Rogowski coil is designed and employed to detect the output current of a Marx generator.The Rogowski coil is calibrated with a1.0kA pulsed power generator which is driven by a capacitor.One TEM chamber is used to obtain the frequency response of the square-wave for the coil.The experiment result can agree with the circuit simulation result very well.The response time of the coil is about16.0ns.During the experiment the Marx generator output current waveform decays very quickly at the tail of the pulse and the base line is distorted.This is analyzed by the circuit simulation model and the simulation results suggest that the distortion could be eliminated by adjusting the time constant of the RC integrator.The experiment results are consistent with theoretical analysis,and the improved coil can response correctly.

关 键 词：脉冲电流 测量 罗可夫斯基线圈 频率响应 

分 类 号：TM836[电气工程—高电压与绝缘技术]