强激光与粒子束, 2010, 22 (8): 1959, 网络出版: 2010-09-15   

快前沿直线脉冲变压器驱动源模块中开关同步对放电电流的影响

Influence of discharge synchronization on output current in fast linear transformer driver stage
作者单位
西北核技术研究所, 西安 710024
摘要
介绍了4支路并联快前沿直线脉冲变压器驱动源(FLTD)模块的初步实验结果, 在工作电压160 kV时, 次级短路放电电流幅值达到103.4 kA, 电流前沿为78 ns(10%~90%)。利用微分环测量了4只开关在工作电压120 kV时的同步情况, 研究分析了开关同步对放电电流幅值和波形的影响。开关同步小于15 ns时, 放电电流幅值变化不明显, 电流幅值的标准偏差约3.62 kA, 电流波形没有明显畸变; 开关同步15~25 ns时, 放电电流幅值略有下降, 电流幅值的标准偏差约8.59 kA, 电流波形有一定程度畸变; 开关同步大于25 ns时, 放电电流幅值明显降低, 电流的标准偏差显著增大, 电流波形发生严重畸变。
Abstract
This paper summarizes the design and test results of a four-bricks fast linear transformer driver(FLTD) stage. When the charge voltage of the stage is 160 kV,the output current is 103.4 kA, and the risetime is 78 ns(10%~90%). Discharge synchronization(Δtd) of four switches with charge voltage 120 kV has been studied with differential loop. The experimental results indicate that the peak current and output waveforms are almost free from fluctuation with Δtd<15 ns, and the standard deviation of peak current is 3.62 kA.If Δtd=15~25 ns, the peak current has a slight loss, the standard deviation of peak current is 8.59 kA, and the output waveforms have small aberrations. If Δtd>25 ns, the peak current lowers significantly with the standard deviation increasing obviously, and the output waveforms suffer severe distortion.

孙铁平, 乔开来, 郭宁, 张国伟, 韩娟娟, 黄涛, 王亮平, 丛培天, 曾正中. 快前沿直线脉冲变压器驱动源模块中开关同步对放电电流的影响[J]. 强激光与粒子束, 2010, 22(8): 1959. Sun Tieping, Qiao Kailai, Guo Ning, Zhang Guowei, Han Juanjuan, Huang Tao, Wang Liangping, Cong Peitian, Zeng Zhengzhong. Influence of discharge synchronization on output current in fast linear transformer driver stage[J]. High Power Laser and Particle Beams, 2010, 22(8): 1959.

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