Research on the Polarity Configuration of Laser Triggered Vacuum Switch
He Zhenghao1,Wei Liangcai1,Mao Xiaopo1,2,*,Wang Ying3,Lin Huazhong3,Luo Yayun1,Huang Qiang4
1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan Hubei 430074 China; 2. Electric Power Research Institute, State Grid Hubei Electric Power Corporation Wuhan Hubei 430077 China; 3. State Key Laboratory of Laser Technology Huazhong University of Science and Technology Wuhan Hubei 430074 China; 4. Nanchang Institute of Technology Nanchang Jiangxi 330099 China
Abstract：The basic structure and working mechanism of Laser Triggered Vacuum Switch (LTVS) are briefly introduced, while the processes of primary plasma production and expansion are analyzed. A series of experiments have been carried out under different polarity configuration mode of LTVS, the dependence of conduction time delay and jitter time delay on polarity is described, the effect of main electrode and the expansion of primary plasma is analyzes, the theoretical basis for structure optimization design of LTVS is provided. Under positive polarity configuration, which is beneficial to generate the cathode spots, the high working reliability and small time delay of LTVS is verified by the experiments, it proves that the expansion of primary plasma is the growth of near cathode plasma sheath.
何正浩,魏良才,毛晓坡,王英,林华中,罗亚运,黄倩. 激光触发真空开关极性配置特性的研究[J]. 电工技术学报, 2015, 30(14): 215-219.
He Zhenghao,Wei Liangcai,Mao Xiaopo,Wang Ying,Lin Huazhong,Luo Yayun,Huang Qiang. Research on the Polarity Configuration of Laser Triggered Vacuum Switch. Transactions of China Electrotechnical Society, 2015, 30(14): 215-219.
[1] E P. J. Brannon, D.F.Cowgill. Low-Jitter Laser- Triggered vacuum switch using a composite target[J]. Plasma Science, IEEE Transactions on, Apr 1988, Vol. 16, Issue. 2: 325-327. [2] 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, Vol.30, No.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, Vol.30, No.9:87-90. [3] Mao Xiaopo, He Zhenghao, Wang Ying, 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. [4] 王延召,戴玲,周正阳,等. 多棒极型触发真空开关极性效应[J]. 强激光与粒子束,2012,24(3)：587-591. Wang Yanzhao, Dai Ling, Zhou Zhengyang, 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. [5] Makarevich et al. A Vacuum Spark Gap with Laser Firing[J]. Instruments and Experimental Techniques, 1973, 16(1-6):1716-1717. [6] V.Bulgin et al. Laser-Triggered Vacuum Switch[J]. Sov. Phys. Tech., 1975 20(4): 561-563. [7] 王珏, 邵建设, 严萍, 等. 激光触发真空沿面闪络开关的初步实验研究[J],强激光与粒子束,2007, 19(6): 1027-1030. Wang Jue, Shao Jianshe, Yan Ping, et al. Experimental Study on Laser Triggered Surface Flashover Switch in Vacuum[J]. High Power Laser and Particle Beams. 2007, 19(6): 1027-1030. [8] Mao Xiaopo, He Zhenghao, Xu Xinya, et al. Research on the Time Delay Characteristics of the laser triggered vacuum switch [J]. IEEE Transactions on Plasma Science, 2015, 43(6):2005-2010. [9] R.Fellers etal. A Laser Triggered Vacuum Gap for High Energy Applications[J]. IEEE Procedures Southeastcon, 80, Nashvile, Tenn.Apr 1980: 315-318. [10] Paul J Brannon, Merle E Riley. A model for the operation of a laser-triggered vacuum low-inductance switch[J]. Plasma Science, IEEE Transactions on, Dec 1989, Vol.17(6:859-862. [11] Kovaleski, Scott D, Sullivan, Dustin L. Laser target triggering of gas switches[D]. University of Missouri— Columbia, 2008. [12] D. Chrisey and G. Hubler, eds., Pulsed Laser Deposition of Thin Films[M]. New York: John Wiley & Sons, Inc., 1994. [13] F.Okuyama, S.S.Wong, and F.W.Rollgen. Emission of positive ions from KCl and NaCl crystals exposed to high electric fields[J]. Surface Science. Vol.151, 1985: 131-136. [14] 何俊佳,邹积岩,王海,等. 触发真空开关中初始等离子体的产生和扩展[J]. 高压电器,1996,第6期: 3-5. [15] L. M. Earley and G. A. Barnes.Low-jitter, high- voltage, infrared, laser-triggered, vacuum switch[J]. The 8th IEEE Pulsed Power Conference, San Diego, CA, 17-19Jun. 1991: 17-19, 1991. [16] 毛晓坡, 何正浩, 王英, 等. 多棒型激光触发真空开关时延特性的研究[J]. 电工技术学报, 2015, Vol30, No.5: 106-110. Mao Xiaopo, He Zhenghao, Wang Ying, et al. Research on the time delay characteristics of the six-gap rod electrode laser triggered vacuum switch[J]. Transactions of China Electrotechnical Society. 2015, Vol.30, No.5: 106-110.
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