高功率重复频率Marx型脉冲功率源小型化技术研究进展

摘要

The circuit of a Marx generator is the simplest high voltage amplification circuit,the technical difficulties of Marx generator with high voltage,high current are fast rise time,low jitter,repetitive frequency and long time operating.In order to miniaturize the high power pulse system,we proposed a new method to generate high voltage rectangular wave pulses.Based on the cognition that the direct drive technology can improve energy efficiency and increase the output energy of unit volume,we inte-grated the low-voltage energy storage unit and pulse forming network into a module,which reduced the volume and weight great-ly.This paper mainly introduces the important progress in the key technology of compact pulsed power system,including the en-ergy storage and pulse forming integration technology,the low jitter and repetition frequency gas switch technology,the low jitter high energy trigger technology,the compact Marx generator technology and so on.At the same time,it presents several typical high power repetition frequency Marx type pulse power devices developed by the task group:The coaxial structure fast Marx gen-erator,the pulsed power source based on kapton-film dielectric line,the modular low impedance compact Marx generator,and the 20 GW compact Marx type repetitive frequency pulsed power source.The research of key technology and its development status are discussed,which can provide reference for future development and application direction of the miniaturization of pulsed power sources.%传统的高功率重复频率脉冲功率源通常以低电压储能、升压、高压脉冲形成线、输出的顺序工作.因而系统至少包括低压储能和高压脉冲形成线两个储能环节,同时高压脉冲形成线的体积随着电压的升高快速增长.针对这些问题,课题组提出了一种高功率重复频率Marx型脉冲功率源小型化研究的设计思路和实现方式,并开展了相关技术研究.主要介绍了课题组在关键技术上取得的重要进展,包括高储能密度的储能/脉冲成形一体化技术、低抖动重复频率气体开关技术、低抖动高能触发技术、紧凑型Marx高压串叠技术等一系列关键技术.同时介绍了课题组研制的几种典型紧凑结构重复频率Marx型脉冲功率装置:同轴结构快Marx发生器、基于薄膜介质线的脉冲功率源、模块化低阻抗紧凑型Marx发生器、20 GW高功率重复频率脉冲驱动源.通过探讨关键技术研究及其发展现状,为未来脉冲功率源小型化研究的发展和应用方向提供参考.