平板电极型激光触发真空开关的导通特性研究

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Abstract High power laser triggered vacuum switch,due to its accuracy,reliability and anti-electromagnetic interference,has a very broad application prospects in many field,such as fast closing switch,electromagnetic emissions,series compensation capacitor protection.A flat electrode type laser triggered vacuum switch is presented.In order to improve its trigger life,the design of the trigger electrode is optimized.The designed trigger electrode can be effectively ablative resistant.TiH₂ is used as target material,which can provide extensive initial plasma for the switch.The trigger performance of switch is improved,and the shortest delay is up to 650 ns.The relationship among the laser parameters,focus lens positions,applied voltages and the trigger characteristics which mainly contain the trigger threshold,minimum operating voltage and the delay time is analyzed in detail.Trigger threshold theory and arc ignition mechanism are proposed to explain the switch conduction,which can provide the theory basis of the design of the LTVS.Is the experiment can concluded that the stable trigger threshold can reach 4.5×10⁷ W/cm²,and the minimum operating voltage observed is 30 V.Time delay under the normal focus mode can be effectively reduced.Furthermore,it is found that the process of laser-stimulated arc initiation is of a random nature.A short transition phase of strongly fluctuating exists.When the arc current value is beyond 5 A and the external voltage is high enough,the oscillation phenomenon disappears and the vacuum arc is ignited stably.

Key words： Laser triggered vacuum switch trigger threshold minimum operating voltage delay characteristics arc ignition mechanism

Received: 07 July 2015 Published: 26 December 2016

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TM89

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	Articles by authors
	Jiang Xiping
	Liao Minfu
	Zhao Yan
	Duan Xiongying
	Zheng Chunyang

Cite this article:

Jiang Xiping,Liao Minfu,Zhao Yan等. Research on Conduction Characteristics of Plate Electrode Type Laser Triggered Vacuum Switch[J]. Transactions of China Electrotechnical Society, 2016, 31(23): 150-158.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I23/150

[1] 王莹.脉冲功率科学与技术[M].北京:北京航空航天大学出版社,2010.
[2] Zhao Chun,Zou Jiyan,Li Xiaopeng,et al.Study of a three-stage reconnection electromagnetic launcher using triggered vacuum switches[J].IEEE Transactions on Magnetics,2007,43(1):219-222.
[3] 孙为民,曾嵘,盛新富.用于串补的激光触发与电脉冲触发火花间隙对比实验研究[J].高电压技术,2015,41(2):693-698.
Sun Weimin,Zeng Rong,Sheng Xinfu.Experimental study of laser-triggering and electrical-triggering methods for a high voltage spark gap in high-voltage series capacitor protection[J].High Voltage Engineering,2015,41(2):693-698.
[4] 廖敏夫,李文浩,蒋西平,等.激光触发多级气体真空混合开关简[J].电工技术学报,2015,30(9):91-95.
Liao Minfu,Li Wenhao,Jiang Xiping,et al.Laser triggered multistage gas mixed vacuum switch[J].Transactions of China Electrotechnical Society,2015,30(9):91-95.
[5] 戴玲,周正阳,南敬,等.基于六间隙棒电极结构的沿面击穿型触发真空开关的工作特点[J].电工技术学报,2012,27(10):128-134.
Dai Ling,Zhou Zhengyang,Nan Jing,et al.Characteristics of a surface-breakdown triggered vacuum switch with six-gap rod electrode system[J].Transactions of China Electrotechnical Society,2012,27(10):128-134.
[6] Mao X,He Z,Wang Y,et al.Research on the interaction of primary plasma and main electrode for laser triggered vacuum switch[J].IEEE Transactions on Plasma Science,2014,42(11):3592-3597.
[7] Makarevich A A,Rodichkin V A.A vacuum spark gap with laser firing[J].Instruments and Experimental Techniques,1973,16(3):1716-1720.
[8] 刘之方,魏文赋,董勤晓,等.高压直流下激光触发空气间隙放电的实验研究[J].中国电机工程学报,2014,34(21):3527-3533.
Liu Zhifang,Wei Wenfu,Dong Qinxiao,et al.Experimental study on air gap discharge triggered by pulsed laser under HVDC condition[J].Proceedings of the CSEE,2014,34(21):3527-3533.
[9] Sullivan D L,Kovaleski S D,Hutsel B T,et al.Study of laser target triggering for spark gap switches[J].IEEE Transactions on Dielectrics and Electrical Insulation,2009,16(4):956-960.
[10]Woodworth J R,Molina I,Nelson D,et al.Green-laser-triggered water switching at 1.6 MV[J].IEEE Transactions on Dielectrics and Electrical Insulation,2007,14(4):951-957.
[11]Brannon P J,Riley M E.A model for the operation of a laser-triggered vacuum low-inductance switch[J].IEEE Transactions on Plasma Science,1989,17(6):859-862.
[12]毛晓坡,何正浩,王英,等.平面圆盘型激光触发真空开关触发机制研究[J].电工技术学报,2015,30(9):87-90.
Mao Xiaopo,He Zhenghao,Wang Ying,et al.Research on the trigger mechanism of parallel disc type laser triggered vacuum switch[J].Transactions of China Electrotechnical Society,2015,30(9):87-90.
[13]米夏兹,李国政.真空放电物理和高功率脉冲技术[M].北京:国防工业出版社,2007.
[14]黄刚,曹小华,龙兴贵.钛-氢体系的物理化学性质[J].材料导报,2006,20(10):128-131.
Huang Gang,Cao Xiaohua,Long Xinggui.Physical and chemical properties of Titanium-Hydrogen system[J].Materials Review,2006,20(10):128-131
[15]Siemroth P,Scheibe H J.The method of laser-sustained arc ignition[J].IEEE Transactions on Plasma Science,1990,18(6):911-916.
[16]景春元,邱爱慈,王晓红,等.XeCl 激光触发气体开关的实验研究[J].强激光与粒子束,1993,5(3):379-384
Jing Chunyuan,Qiu Aici,Wang Xiaohong,et al.Experimental studies of XeCl laser-triggered gas switches[J].High Power Laser and Particle Beams,1993,5(3):379-384.
[17]Siegman A E.Analysis of laser beam quality degradation caused by quartic phase aberrations[J].Applied Optics,1993,32(30):5893-5901.
[18]张端明,李智华,钟志成,等.脉冲激光沉积动力学原理[M].北京:科学出版社,2011.
[19]Ivanov V A,Jüttner B,Pursch H,et al.Initiation and sustainment of unipolar arc discharges by a microsecond pulse plasma[J].Beitrge aus der Plasmaphysik,1983,23(6):551-560.
[20]王季梅.真空开关理论及其应用[M].西安:西安交通大学出版社,1986.