2.5MV快沿电磁脉冲模拟器脉冲源故障状态模拟分析  

Simulation Analysis for Fault States of 2.5 MV Electro-Magnetic Pulse Driver with Fast Rise Time

作　　者：贾伟[1] 陈维青[1] 谢霖森[1] 张国伟[1] 李俊娜[1] 邱孟通[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《西安交通大学学报》2012年第12期62-65,84,共5页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(51107102)

摘　　要：利用电路模拟软件与实测波形,建立了2.5MV快沿电磁脉冲(EMP)模拟脉冲源等效电路模型.通过在电路模型中模拟绝缘薄弱环节,如Marx输出端、中储电容、中储开关与峰化电容间支撑绝缘子、峰化电容等位置,设置等效滑闪电路的方法,对模拟器脉冲源可能出现的绝缘故障进行了模拟分析.将模拟器调试阶段出现的故障波形与模拟结果进行比对,二者符合良好.试验结果证明,根据模拟故障波形并结合试验中出现的巨大声响、电源跳闸等物理现象及后续输出电压降低等情况,可以实现模拟器滑闪故障的准确定位,从而保证故障的及时发现与快速排除,提高装置运行可靠性.A circuit model of an electro-magnetic pulse（EMP） simulator driver with 2.5 MV rated voltage and fast rise time is established by the circuit simulation software and the measured output waveforms of the generator.An equivalent flash circuit is set up for the weaker insulation positions in the simulator,such as the output terminal of Marx,intermediate transfer switch,peaking capacitor,and intermediate capacitor.The modified model is used to analyze fault states of the driver,and the simulation results coincide well with the experimental data in debugging stage.The fault simulation and analysis combined with the physical phenomena-violent noise or breakdown of power supply appearing in the experiments and the subsequent output voltage reduction,can accurately locate the flash faults of the EMP simulator.

关 键 词：电磁脉冲模拟器 故障分析 理论模型 故障定位 

分 类 号：TN242[电子电信—物理电子学]