爆炸驱动铁电体电源快脉冲产生技术  

Fast pulse generation technology based on explosive driven ferroelectric generators

作　　者：伍友成[1] 刘高旻[1] 贺红亮[1] 邓建军[1] 戴文峰[1] 冯传均 Wu Youcheng;Liu Gaomin;He Hongliang;Deng Jianjun;Dai Wenfeng;Feng Chuanjun(Institute of Fluid Physics,CAEP,Mianyang 621900,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》2022年第7期132-138,共7页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目。

摘　　要：以发展轻小型高电压脉冲驱动源为出发点,提出采用爆炸驱动铁电体作为初级电源,通过电感储能与电爆炸丝断路开关进行脉冲压缩和功率放大,探索基于爆炸驱动铁电体电源的小型化高电压快脉冲产生技术。从爆炸驱动铁电体电源的全电路模型和铁电陶瓷材料特性出发,通过理论分析和仿真研究,分别对大电流模式和高电压模式的爆炸驱动铁电体电源的物理参数进行了设计,获得了铁电体电源工作模式和电路参数对产生高电压脉冲的影响规律,认为铁电体电源高电压模式更适合于与断路开关技术结合产生高电压快脉冲,并通过实验对该技术原理进行了验证。实验中铁电体电源输出电流约360 A、脉宽约3.8μs,对17.5 nF电容器充电至75 kV,电容器放电后在电爆炸断路开关中产生峰值大于12 kA的脉冲电流,最终在X射线二极管负载上获得了电压峰值大于180 kV、前沿3 ns、脉宽30 ns、电流峰值3.4 kA的高电压快脉冲。To develop a light and small high voltage pulsed power source,an innovative fast pulse technology based on an explosive driven ferroelectric generator(EDFEG)is investigated.An EDFEG is used as the primary power supply,inductive energy storage technology and an electrical exploding opening switch(EEOS)are used to generate a high-voltage fast pulse.On the basis of full-circuit simulation model of EDFEGs and the material properties of ferroelectric ceramics,the circuit simulation research on this fast pulse technology is carried out.The simulation results reveal the influence of circuit parameters on high voltage pulse generation.The research shows that the highvoltage mode of EDFEGs is more suitable for generating high-voltage fast pulse combined with EEOS technology.As a result,the principle of this technology is verified in experiments.In the experiment,the output current of an EDFEG was about 360 A and its pulse width was about 3.8μs.The charging voltage of a 17.5 nF capacitor was 75 kV.After the capacitor was discharged,a pulse current with a peak value greater than 12 kA was generated in an EEOS.Finally,a high-voltage fast pulse with a voltage peak value greater than 180 kV,a rise time of 3 ns,a pulse width of 30 ns and a current peak of 3.4 kA was obtained on an X-ray diode load.

关 键 词：爆炸铁电体电源 电感储能 电爆炸断路开关 高功率 快前沿 快脉冲 

分 类 号：TM89[电气工程—高电压与绝缘技术]