基于磁开关技术的长脉冲驱动源初步研究

基于磁开关技术提出了一种高功率长脉冲驱动源方案,主要包括脉冲变压器、磁脉冲压缩、低阻抗脉冲形成网络、磁开关类型主开关,以及感应电压叠加器等关键子系统;研制了各关键子系统并开展了单独的实验调试,基于跑道型磁芯制作了闭环磁芯脉冲变压器,采用硬连接绕组方式制作了方便调节的两级磁压缩系统,利用陶瓷电容器制作了圆周对称的Blumlein型低阻抗脉冲形成网络,配合低阻抗脉冲形成网络研制了磁开关类型主开关,基于单端口馈电和角向传输线技术建立了四级IVA实验装置;在上述关键子系统调试基础上,开展了全系统的初步联合实验,验证了技术方案。

Preliminary researches on high power long pulse generator based on magnetic switches

A magnetic switch based high power long pulse generator was developed, consisting of a pulsed transformer, a low impedance pulse forming network, magnetic core type main switches and an inductive voltage adder. Key subsystems were individually investigated and tested. The pulsed transformer was set up based on magnetic cores with a rectangular cross section and a raceway loop. The two stage magnetic compression system was made via hard connection windings, which were convenient for adjustment. The ceramic capacitor based low impedance pulse forming network was Blumlein type of a circumference symmetrical structure and with magnetic core type main switches cooperated. The inductive voltage adder of 4 stages was developed with each cell feeding by one port via azimuthal transmission line. Furthermore, preliminary experimental researches were carried out on the whole system, which verified the design concept.