基于伪火花开关控制的脉冲氙灯电源研究
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摘要
为满足爆轰试验高速摄影测试技术中脉冲氙灯照明系统的需求,设计了一种充电电压0~15 kV、储能电容100μF、可分别驱动规格为φ20 mm×500 mm×620 mm和φ50 mm×720 mm×1 080 mm两种脉冲氤灯的电源。采用在光触发信号作用下,一是将高压触发源输出15 kV的脉冲信号,通过绕丝方式对脉冲氙灯进行启辉使其瞬间导通;二是利用伪火花开关(PSS)导通机理将存储在电容上的能量,经电感后迅速转移到脉冲氤灯上对其放电即点亮氙灯。最终在两种脉冲氙灯上分别得到电压约5 kV,15 kV,电流3 kA,8 kA、发光持续时间分别为200μs和100μs的脉冲信号。通过实验结果验证所采用的设计原理及方法的可行性,并给出实验结果。
To fulfill the requirement of xenon flash lamp in high speed imaging technology,two different xenon flash lamp power supplies are designed,which can drive two type of xenon flash lamp(Φ20 mm×500 mm×620 mm andΦ50 mm×720 mm×1080 mm).Based on the light triggering signal,the 15 kV pulse signal output by the high voltage triggering supply make the xenon flash lamp startup and break-over,then the energy on the capacitance released to the xenon flash lamp through pseudospark switch(PSS),and the xenon flash lamp is illumed.The two different flash lamp power supplies export two different pulse signal,which are voltage 5 kV,current 3 kA,pulse width 200 μs and voltage 15 kV,current 8 kA,pulse width 100μs.The feasibility of the project is proved by the experiment.
To fulfill the requirement of xenon flash lamp in high speed imaging technology,two different xenon flash lamp power supplies are designed,which can drive two type of xenon flash lamp(Φ20 mm×500 mm×620 mm andΦ50 mm×720 mm×1080 mm).Based on the light triggering signal,the 15 kV pulse signal output by the high voltage triggering supply make the xenon flash lamp startup and break-over,then the energy on the capacitance released to the xenon flash lamp through pseudospark switch(PSS),and the xenon flash lamp is illumed.The two different flash lamp power supplies export two different pulse signal,which are voltage 5 kV,current 3 kA,pulse width 200 μs and voltage 15 kV,current 8 kA,pulse width 100μs.The feasibility of the project is proved by the experiment.
引文
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[4]栾小燕,张明,周亮.一种新型大电流脉冲调制器件-伪火花开关[J].真空电子技术,2012,53(5):38-42.
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[7]李玺钦,丁明军,吴红光,等.低抖动快前沿重复频率高压脉冲触发源研制[J].强激光与粒子束,2014,26(9):095001-4.
[8]VE4162伪火花开关说明书[K].北京:北京中电集团12所,2013.
[9]李玺钦,赵娟,吴红光,等.一种100 kV Mini-marx发生器触发源设计[J].强激光与粒子束,2014,26(8):085001-4.