Compact Marx generator-based pulse power source
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摘要: 为降低脉冲功率源使用门槛，设计并实现了一种基于Marx发生器的紧凑型脉冲功率源：Marx发生器为7级单极性充电同轴结构，采用低电感陶瓷电容、紫外光预电离输出窄脉冲；使用可调初级高压电源和2路同步触发开关，金属外壳作为接地屏蔽与放电回路；发生器内部充填高气压N2。基于上述设计获得的脉冲功率源在充电电压26 kV、充气0.3 MPa时，在60 Ω负载上获得了前沿33 ns、脉宽59 ns、幅度109.2 kV的高电压脉冲；功率源封装在一个直径0.2 m、长1.1 m的铝合金圆筒内。为紧凑型、模块化脉冲功率源的实现提供了设计思路和参考样机，可用于闪光X射线照相驱动源。Abstract: To reduce the threshold of using pulse power source, a compact pulse power source based on Marx generator is designed and implemented. The Marx generator is a 7-stage unipolar charging coaxial structure with low inductance ceramic capacitor and ultraviolet preionization output narrow pulse. It uses adjustable primary high voltage power supply and 2-way synchronous trigger switch, and metal shell as grounding shield and discharge circuit; it is filled with high pressure N2. Using the power source based on the above design, when the charging voltage is 26 kV and the charging voltage is 0.3 MPa, the high voltage pulse of 33 ns rise time, 59 ns pulse width and 109.2 kV amplitude is obtained on the 60 Ω load. The power source is housed in an aluminum alloy cylinder with a diameter of 0.2 m and a length of 1.1m. This paper provides a design idea and a reference prototype for compact and modular pulse power source, which can be used as flash X-ray radiography drive source.
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Key words:
- Marx generator /
- gas switch /
- compact type /
- pulsed power source
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图 5 3 mm间距自击穿与触发开关电场仿真
Figure 5. 3 mm spacing self breakdown and trigger switch electric field simulation
图 6 气体开关与储能电容连接展示
Figure 6. Gas switch and energy storage capacitor connection illustration
图 8 电路仿真脉冲输出与实际输出对比
Figure 8. Comparison of the circuit simulation output with the actual output
表 1 各充气压力下电压与转换效率
Table 1. Voltage and conversion efficiency at each inflation pressure
inflation type number Ui/kV Uo/kV η 0.1 MPa air 1 5.5 23.4 0.610 2 6.0 25.5 0.608 3 6.5 27.6 0.607 4 7.0 29.9 0.612 0.1 MPa N2 1 14.0 63.2 0.645 2 15.0 68.4 0.651 3 16.0 71.3 0.637 4 17.0 77.7 0.653 0.2 MPa N2 1 19.0 82.0 0.617 2 20.0 86.4 0.617 3 21.0 91.6 0.623 4 22.0 95.3 0.619 0.3 MPa N2 1 25.0 106.9 0.611 2 26.0 109.2 0.600 3 27.0 114.3 0.605 4 28.0 119.6 0.610 
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[1] 韩克华, 王丽萍, 任西, 等. 高压脉冲功率源与冲击片雷管发火能量匹配关系特性试验方法[J]. 火工品, 2012(3):45-49Han Kehua, Wang Liping, Ren Xi, et al. Study on the test method of initiation energy matching for high voltage pulse power source and slapper[J]. Initiators & Pyrotechnics, 2012(3): 45-49 [2] 张亚舟, 李贞晓, 金涌, 等. 电磁发射用13 MJ脉冲功率电源系统研究[J]. 兵工学报, 2016, 37(5):778-784 doi: 10.3969/j.issn.1000-1093.2016.05.002Zhang Yazhou, Li Zhenxiao, Jin Yong, et al. Research and development on a 13 MJ pulsed power supply for electromagnetic launcher[J]. Acta Armamentarii, 2016, 37(5): 778-784 doi: 10.3969/j.issn.1000-1093.2016.05.002 [3] 吴红光, 赵延安, 王晓, 等. 200kV闪光照相测试系统[J]. 强激光与粒子束, 2013, 25(6):1401-1404 doi: 10.3788/HPLPB20132506.1401Wu Honguang, Zhao Yan’an, Wang Xiao, et al. 200-kV flash X-ray radiographic test system[J]. High Power Laser and Particle Beams, 2013, 25(6): 1401-1404 doi: 10.3788/HPLPB20132506.1401 [4] 李小曼, 万利杰, 王晓娟, 等. 脉冲电场在医学中的基础研究及电穿孔的临床应用[J]. 现代生物医学进展, 2017, 17(6):1190-1193,1186Li Xiaoman, Wan Lijie, Wang Xiaojuan, et al. Basic studies of electric pulse in medicine and the role of reversible electroporation in tumor ablation[J]. Progress in Modern Biomedicine, 2017, 17(6): 1190-1193,1186 [5] 史雪红, 杨秀忠, 黄松涛, 等. 基于Marx发生器的电穿孔经皮给药仪的设计[J]. 医疗卫生装备, 2012, 33(6):18-20 doi: 10.3969/j.issn.1003-8868.2012.06.007Shi Xuehong, Yang Xiuzhong, Huang Songtao, et al. Design of electroporation transdermal drug delivery device based on MARX generator[J]. Chinese Medical Equipment Journal, 2012, 33(6): 18-20 doi: 10.3969/j.issn.1003-8868.2012.06.007 [6] 吴红光, 曹科峰, 梁川, 等. 150 kV脉冲X光机[J]. 强激光与粒子束, 2010, 22(4):941-944 doi: 10.3788/HPLPB20102204.0941Wu Hongguang, Cao Kefeng, Liang Chuan, et al. 150 kV pulsed X-ray system[J]. High Power Laser and Particle Beams, 2010, 22(4): 941-944 doi: 10.3788/HPLPB20102204.0941 [7] 梁川, 席璐璘, 周林, 等. 便携式150 kV闪光X光源研制及应用[J]. 强激光与粒子束, 2014, 26:045033 doi: 10.11884/HPLPB201426.045033Liang Chuan, Xi Lulin, Zhou Lin, et al. Investigation and application of a portable 150 kV flash X-ray system[J]. High Power Laser and Particle Beams, 2014, 26: 045033 doi: 10.11884/HPLPB201426.045033 [8] Zhou Lin, Ye Mingtian, Qi Jianming, et al. A compact nanosecond pulse generator for X-ray radiographies[J]. Review of Scientific Instruments, 2021, 92: 124711. doi: 10.1063/5.0070794 [9] 陈林, 邹文康, 谢卫平, 等. 1MV/100kA快脉冲直线型变压器驱动源装置设计[J]. 高电压技术, 2012, 38(4):935-940Chen Lin, Zou Wenkang, Xie Weiping, et al. Design of the 1 MV/100kA fast linear transformer driver generator[J]. High Voltage Engineering, 2012, 38(4): 935-940 [10] 伍友成, 何泱, 戴文峰, 等. 高功率紧凑型重频快Marx脉冲驱动源[J]. 强激光与粒子束, 2017, 29:055003 doi: 10.11884/HPLPB201729.170040Wu Youcheng, He Yang, Dai Wenfeng, et al. High power compact repetitive fast Marx pulsed power source[J]. High Power Laser and Particle Beams, 2017, 29: 055003 doi: 10.11884/HPLPB201729.170040 [11] 马文蔚. 物理学 中册[M]. 4版. 北京: 高等教育出版社, 1999: 66-67Ma Wenwei. Physics[M]. 4th ed. Beijing: Higher Education Press, 1999: 66-67 [12] Patel A S, Senthil K, Menon R, et al. A 500 kV, 10 kA, 40 ns coaxial Marx generator pulser for cable fed flash X-ray system[J]. Review of Scientific Instruments, 2022, 93: 104708. doi: 10.1063/5.0106045 [13] W. 莫尔施, W. 豪席尔德. 高压绝缘用六氟化硫[J]. 李建基, 译. 高压电器, 1984(6): 40Morsch W, Hauschild W. Sulfur hexafluoride for high voltage insulation[J]. Li Jianji, trans. High Voltage Apparatus, 1984(6): 40 [14] 胡汉鹏, 黄亚琪, 张珍铭, 等. 小型闪光X射线机研究进展综述[J]. 强激光与粒子束, 2024, 36:055004 doi: 10.11884/HPLPB202436.240020Hu Hanpeng, Huang Yaqi, Zhang Zhenming, et al. Research advancements of small-scale flash X-ray machine[J]. High Power Laser and Particle Beams, 2024, 36: 055004 doi: 10.11884/HPLPB202436.240020 -
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