Development of rep-rate PFN-Marx generator with nanosecond output jitter
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摘要: PFN-Marx型脉冲驱动源具有结构紧凑、输出脉冲波形可调等优点，当用作高功率微波系统前级驱动源时在提升系统轻小型化水平、输出效率等方面具有巨大潜力。设计并研制了基于2节紧凑脉冲形成模块和低感火花隙气体开关的PFN-Marx型高压脉冲发生器，并实现了其50 Hz重复频率运行和低抖动输出。基于非均匀脉冲形成及波形调控技术实现了2节PFN的低振荡波形输出，并研制了兼具储能与脉冲形成功能的紧凑脉冲形成模块。对其工作参数和输出特性进行了分析计算，模块可输出近方波高压脉冲，脉冲宽度约150 ns。研制了紧凑型PFN-Marx发生器，通过对称放电、平面触发结构火花隙气体开关设计，实现了PFN-Marx发生器的重复频率运行和低抖动输出。所设计发生器输出功率可达3.4 GW，脉冲平顶持续时间约80 ns，能够以50 Hz重复频率工作，输出抖动标准差低至2.4 ns。Abstract:
Background The PFN (pulsed forming network)-Marx generator shows robust capabilities for enhancing the output efficiency and miniaturization level of pulsed power system, and offers the most significant potential for compact and lightweight design.Purpose This study aims to develop a compact PFN-Marx generator that is capable of generating high-power pulses with flat-top duration, while maintaining low output jitter.Methods A tailored pulsed forming module (PFM) was developed by employing a non-uniform PFN sections reduced to 2, aiming for enhanced compactness. The influence of key circuit parameters on its output waveform was investigated. A PFN-Marx generator was designed and assembled by employing the PFMs and low-jitter plane-triggering-electrode gas switches et al.Results The effects of key circuit parameters on the pulse shaping was quantitatively analyzed, and waveform tailoring of the PFM was achieved. The PFM could output a high-voltage pulse with a pulse width and flat-top duration (90%−90%) of about 150 ns and 80 ns, respectively. Once assembled into the Marx generator, it could deliver a 190 kV, 3.4 GW high pulsed power to a 10.6 Ω resistive load, while maintaining a flat-top duration of about 80 ns. When operating at a repetition rate of 50 Hz, it exhibits highly consistent output waveforms, with an output jitter as low as 2.4 ns.Conclusions A compact PFN-Marx generator was developed by employing a 2-sections tailored PFM that is capable of generating high-power pulses with flat-top duration. It is helpful for the development of compact Marx generator with the required waveform and low output jitter.-
Key words:
- Marx generator /
- rep-rate /
- pulse forming /
- gas switch /
- low output jitter.
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图 3 两节Guillemin网络仿真电路和输出波形
Figure 3. Simulation circuit and waveform of the 2-section Guillemin network
图 4 两节Guillemin网络各支路电流波形(下)与回路输出波形(上)
Figure 4. Current waveform of each section (lower) and the algebraic sum of each section(upper)
图 5 脉冲形成模块实验波形及照片(插图)
Figure 5. Experimental waveform and picture inset of pulse forming module
图 6 气体开关电场分布图和电场强度曲线
Figure 6. Electric field distribution and field strength value on curve of the gas switch
表 1 各支路电流波峰/波谷占比随Lpri变化规律
Table 1. The percentage of peak/trough of each section in current waveform with the increase of Lpri
Lpri /nH percentage of T1/% percentage of P1/% percentage of T2/% section1 section2 section2 section2 0 107.74 38.68 30.57 28.68 40 117.38 30.47 24.25 31.33 120 106.14 20.39 12.61 24.25 200 97.61 16.18 7.67 20.78 
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[1] McNab I R. Large-scale pulsed power opportunities and challenges[J]. IEEE Transactions on Plasma Science, 2014, 42(5): 1118-1127. doi: 10.1109/TPS.2014.2303884 [2] 江伟华. 高重复频率脉冲功率技术及其应用: (1)概述[J]. 强激光与粒子束, 2012, 24(1): 10-15[J] doi: 10.3788/HPLPB20122401.0010Jiang Weihua. Repetition rate pulsed power technology and its applications: (I) introduction[J]. High Power Laser and Particle Beams, 2012, 24(1): 10-15 doi: 10.3788/HPLPB20122401.0010 [3] 魏浩, 孙凤举, 邱爱慈, 等. 国际高能脉冲X射线闪光照相加速器的发展综述[J]. 强激光与粒子束, 2022, 34: 094001 doi: 10.11884/HPLPB202234.210444Wei Hao, Sun Fengju, Qiu Aici, et al. Review of development of high energy pulsed X-ray accelerators for flash radiography[J]. High Power Laser and Particle Beams, 2022, 34: 094001 doi: 10.11884/HPLPB202234.210444 [4] Fair H D. Advances in electromagnetic launch science and technology and its applications[J]. IEEE Transactions on Magnetics, 2009, 45(1): 225-230. doi: 10.1109/TMAG.2008.2008612 [5] Deng Jianjun, Shi Jinshui, Xie Weiping, et al. Overview of pulsed power research at CAEP[J]. IEEE Transactions on Plasma Science, 2015, 43(8): 2760-2765. doi: 10.1109/TPS.2015.2452192 [6] 闫克平, 李树然, 郑钦臻, 等. 电除尘技术发展与应用[J]. 高电压技术, 2017, 43(2): 476-486Yan Keping, Li Shuran, Zheng Qinzhen, et al. Development and application of electrostatic precipitation technology[J]. High Voltage Engineering, 2017, 43(2): 476-486 [7] 丛培天. 中国脉冲功率科技进展简述[J]. 强激光与粒子束, 2020, 32: 025002 doi: 10.11884/HPLPB202032.200040Cong Peitian. Review of Chinese pulsed power science and technology[J]. High Power Laser and Particle Beams, 2020, 32: 025002 doi: 10.11884/HPLPB202032.200040 [8] Su Jiancang, Zhang Xibo, Li Rui, et al. An 8-GW long-pulse generator based on Tesla transformer and pulse forming network[J]. IEEE Transactions on Plasma Science, 2014, 85: 063303. doi: 10.1063/1.4884341 [9] 彭建昌, 苏建仓, 张喜波, 等. 20GW/100Hz脉冲功率源研制[J]. 强激光与粒子束, 2011, 23(11): 2919-2924 doi: 10.3788/HPLPB20112311.2919Peng Jianchang, Su Jiancang, Zhang Xibo, et al. Development of 20GW/100 Hz repetitive pulsed accelerator[J]. High Power Laser and Particle Beams, 2011, 23(11): 2919-2924 doi: 10.3788/HPLPB20112311.2919 [10] 耿玖源, 杨建华, 舒挺, 等. 10 GW甘油介质双螺旋Blumlein脉冲形成线[J]. 强激光与粒子束, 2023, 35: 065004 doi: 10.11884/HPLPB202335.230005Geng Jiuyuan, Yang Jianhua, Shu Ting, et al. 10 GW dual-spiral Blumlein pulse forming lines in glycerol medium[J]. High Power Laser and Particle Beams, 2023, 35: 065004 doi: 10.11884/HPLPB202335.230005 [11] Yang Jianhua, Zhang Zicheng, Yang Hanwu, et al. Compact intense electron-beam accelerators based on high energy density liquid pulse forming lines[J]. Matter and Radiation at Extremes, 2018, 3(6): 278-292. doi: 10.1016/j.mre.2018.07.002 [12] 伍友成, 冯传均, 付佳斌, 等. 基于PFN-Marx技术的紧凑型重频脉冲功率源[J]. 强激光与粒子束, 2024, 36: 055019 doi: 10.11884/HPLPB202436.230354Wu Youcheng, Feng Chuanjun, Fu Jiabin, et al. A compact PFN-Marx repetitive pulsed power source[J]. High Power Laser and Particle Beams, 2024, 36: 055019 doi: 10.11884/HPLPB202436.230354 [13] Liu Shifei, Zhang Jiande, Zhang Zicheng, et al. Development of a high-power pulse-forming network Marx generator with a long pulse duration[J]. Review of Scientific Instruments, 2022, 93: 124704. doi: 10.1063/5.0124394 [14] 宋法伦, 李飞, 龚海涛, 等. 高功率重复频率Marx型脉冲功率源小型化技术研究进展[J]. 强激光与粒子束, 2018, 30: 020201 doi: 10.11884/HPLPB201830.170337Song Falun, Li Fei, Gong Haitao, et al. Research progress on miniaturization of high power repetition frequency Marx type pulse power source[J]. High Power Laser and Particle Beams, 2018, 30: 020201 doi: 10.11884/HPLPB201830.170337 [15] Li Fei, Song Falun, Zhu Mingdong, et al. A compact high-voltage pulse forming module with hundreds of nanoseconds quasi-squared output pulse[J]. Review of Scientific Instruments, 2018, 89: 104706. doi: 10.1063/1.5030568 [16] Song Falun, Li Fei, Zhang Beizhen, et al. A compact low jitter high power repetitive long-pulse relativistic electron beam source[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019, 919: 56-63. doi: 10.1016/j.nima.2018.11.130 -
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