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基于Boost闭环控制的恒峰值双极性脉冲发生器的研制

彭媛媛 陈文光 卢杨 刘之戬 欧林祥 左芊

彭媛媛, 陈文光, 卢杨, 等. 基于Boost闭环控制的恒峰值双极性脉冲发生器的研制[J]. 强激光与粒子束. doi: 10.11884/HPLPB202234.220179
引用本文: 彭媛媛, 陈文光, 卢杨, 等. 基于Boost闭环控制的恒峰值双极性脉冲发生器的研制[J]. 强激光与粒子束. doi: 10.11884/HPLPB202234.220179
Peng Yuanyuan, Chen Wenguang, Lu Yang, et al. Development of constant peak bipolar pulse generator based on Boost closed-loop control[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202234.220179
Citation: Peng Yuanyuan, Chen Wenguang, Lu Yang, et al. Development of constant peak bipolar pulse generator based on Boost closed-loop control[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202234.220179

基于Boost闭环控制的恒峰值双极性脉冲发生器的研制

doi: 10.11884/HPLPB202234.220179
基金项目: 国家重点研发计划项目(2018YFE0303103)
详细信息
    作者简介:

    彭媛媛,2836735028@qq.com

    通讯作者:

    陈文光,chenwg@usc.edu.cn

  • 中图分类号: TM823

Development of constant peak bipolar pulse generator based on Boost closed-loop control

  • 摘要: 在肿瘤消融、污水处理等领域的脉冲功率技术应用中,研究发现双极性电脉冲往往比单极性电脉冲效果更佳,这极大地刺激了双极性高压脉冲电源的研发需求。设计了一台基于Boost闭环控制的恒峰值双极性脉冲发生器,该发生器结合boost电路与Marx发生器的特点,实现了具有升压功能的双极性脉冲的产生,且利用峰值检测电路对双极性脉冲发生器的输出峰值进行取样,并反馈到DSP处理器,实现峰值电压闭环控制,从而实现双极性脉冲恒定峰值的输出。为了验证提出的拓扑电路的可行性与稳定性,对5级恒峰值双极性脉冲发生器进行了仿真和实验研究。实验结果表明,当输入电压在100 V时,可产生重复频率5 kHz、脉冲宽度5~10 μs、电压幅值为±2.0 kV的恒峰值双极性脉冲波形。该脉冲电源使用模块化设计,便于级联,结构紧凑,可灵活输出恒峰值的双极性或单极性正(负)脉冲。
  • 图  1  Boost闭环控制的恒峰值双极性脉冲发生器的结构框图

    Figure  1.  Structure block diagram of constant peak bipolar pulse generator with boost closed loop control

    图  2  主电路拓扑结构

    Figure  2.  Main circuit topology

    图  3  开关管导通时序

    Figure  3.  Switch on sequence

    图  4  峰值检测电路

    Figure  4.  Peak detection circuit

    图  5  驱动电路原理图

    Figure  5.  Schematic diagram of driving circuit

    图  6  控制信号时序图

    Figure  6.  Control signal sequence diagram

    图  7  升压占空比D=75.0%下负载电压仿真波形

    Figure  7.  Simulation waveform of load voltage under boost duty ratio D=75.0%

    图  8  2.0 kV恒峰值双极性脉冲仿真波形

    Figure  8.  2.0 kV constant peak bipolar pulse simulation waveform

    图  9  实物样机

    Figure  9.  Physical prototype

    图  10  升压占空比D=66.7%时升压型双极性脉冲波形

    Figure  10.  Boost bipolar pulse waveform when boost duty ratio D=66.7%

    图  11  2.0 kV恒峰值双极性脉冲波形

    Figure  11.  2.0 kV constant peak bipolar pulse waveform

    表  1  仿真参数设置

    Table  1.   Simulation parameter settings

    Uin/VfB//kHzD/%LB/mHL/mHC/μFf/kHzdmax/%RL/kΩ
    1005066.71.2202551
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-05-31
  • 修回日期:  2022-07-25
  • 网络出版日期:  2022-08-01

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