210kV全固态高压脉冲调制器设计  

Design of a 210 kV All-solid-state High Voltage Pulse Modulator

作　　者：辜霄[1,3] 彭伟 江涛 周江龙 李长年 GU Xiao;PENG Wei;JIANG Tao;ZHOU Jianglong;LI Changnian(University of Electronic Science and Technology of China,Chengdu Sichuan 610054,China;Unit 63660,Luoyang Henan 471000,China;Chengdu Seekon Microwave Communication Co.Ltd.,Chengdu Sichuan 610091,China)

机构地区：[1]电子科技大学,四川成都610054 [2]63660部队,河南洛阳471000 [3]成都西科微波通讯有限公司,四川成都610091

出　　处：《真空电子技术》2024年第1期56-61,共6页Vacuum Electronics

摘　　要：为克服传统高压脉冲调制器中存在的波形畸变严重及高初级电压引入的可靠性差的缺点,介绍了一种以半导体器件作为脉冲开关的全固态高压脉冲调制器。详细阐述了全固态高压脉冲调制器的设计原理、结构特点及驱动控制方法。该系统由18级模块并联而成,每级模块的储能电容、高压充电和固态开关驱动供电均采用高压硅堆隔离,每个模块采用一只独立控制的高压绝缘栅双极型晶体管(Insulated Gate Bipolar Transistor,IGBT)对模块的储能电容实现充电和放电。IGBT驱动电路采用高压硅堆隔离供电、光纤传输触发脉冲和高性能IGBT驱动模块设计构成。驱动电路具备完善的欠压、过流和过压保护功能。该调制器输出方形高压脉冲幅度大于210 kV,脉冲顶部宽度为5μs,脉冲前沿约690 ns,脉冲后沿约920 ns,重复频率100 Hz。To overcome the serious waveform distortion and poor reliability caused by high primary voltage in traditional high voltage pulse modulators,an all-solid-state high voltage pulse modulator with semiconductor device pulse switch is introduced.The design principle,structural characteristics,and driving control method of the modulator are elaborated in detail.The modulator is composed of 18-stage modules in parallel,and the energy storage capacitors,high-voltage charging,and solid-state switch drive power supply in each stage are all isolated by high-voltage silicon stacks.For each module,an independently controlled high voltage insulated gate bipolar transistor(IGBT)is used to charge and discharge the energy storage capacitor.The IGBT driver circuit adopts high voltage silicon stack isolation power supply,fiber optic transmission trigger pulse,and high performance IGBT driver module.It has complete undervoltage,overcurrent,and overvoltage protection functions.The modulator outputs a square high voltage pulse with an amplitude greater than 210 kV and a pulse top width of 5μs.The pulse leading edge is about 690ns,the pulse trailing edge is about 920ns,and the repetition frequency is 100 Hz.

关 键 词：高功率微波 固态调制 IGBT 同步触发 

分 类 号：TN78[电子电信—电路与系统]