爆磁压缩发生器与高阻抗负载匹配调制电路  

Power conditioning circuit to match impedance of explosive magnetic flux compression generator and load with high impedance

作　　者：王俞卫[1] 张建德[1] 陈冬群[1] 曹胜光[1] 李达[1] 刘车波[1] 

机构地区：[1]国防科学技术大学光电科学与工程学院,长沙410073

出　　处：《强激光与粒子束》2013年第4期1050-1054,共5页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目

摘　　要：通过对以电容器替代爆磁压缩发生器的系统等效电路进行理论分析,对影响这种调制电路性能的关键问题及其解决方法进行了讨论。根据理论分析结果对调制电路进行了设计。在初步实验中,当用于去除电爆炸丝上附加电压的撬断开关保持断开时,变压器原边电流切断不彻底,电容负载上充电电压峰值为-264kV;保持其他电路参数不变,而使撬断开关在电爆炸断路开关断开过程中闭合时,变压器原边电流切断彻底,在相同负载上充电电压峰值为-374kV。实验结果验证了理论分析结果,并证明了采用这种调制电路能够实现爆磁压缩发生器与高阻抗负载匹配。The explosive magnetic flux compression generator （FCG） is a kind of compact pulsed power source with rela- tively low characteristic impedance. To match the impedance of the generator and the load in kinds of applications, some special power conditioning circuits are always in need. In this paper, a power conditioning circuit based on the electro-exploding opening switch （EEOS） and pulsed transformer is investigated. By analyzing the equivalent circuit of the system where the generator is re- placed by a capacitor, a key factor determining the performance of the power conditioning circuit is discussed, as well as its solu- tion. Based on the analysis, the power conditioning circuit with coaxial structure is designed. In the preliminary experiments, the capacitive load was charged to a peak voltage of --267 kV when the crowbar switch used to remove the additional voltage across the fuse kept open, and it was charged to --374 kV when the crowbar switch closed during the opening process of the EEOS. The analysis conclusions are basically proved by these experimental results. And the power conditioning circuit introduced is proved to be efficient to match the impedance of the FCG and high-impedance load.

关 键 词：爆磁压缩发生器 阻抗匹配 电爆炸断路开关 脉冲变压器 

分 类 号：TN787[电子电信—电路与系统]