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大气压介质阻挡辉光放电脉冲的阴极位降区特性及其影响因素的数值仿真

姚聪伟 马恒驰 常正实 李平 穆海宝 张冠军

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大气压介质阻挡辉光放电脉冲的阴极位降区特性及其影响因素的数值仿真

姚聪伟, 马恒驰, 常正实, 李平, 穆海宝, 张冠军

Simulations of the cathode falling characteristics and its influence factors in atmospheric pressure dielectric barrier glow discharge pulse

Yao Cong-Wei, Ma Heng-Chi, Chang Zheng-Shi, Li Ping, Mu Hai-Bao, Zhang Guan-Jun
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  • 大气压介质阻挡放电常用于产生低温等离子体,其放电特性已成为当前的研究热点.本文针对大气压氦气介质阻挡放电结构建立了流体数值仿真模型,研究其辉光放电脉冲特性.从发光结构、粒子分布和电场分布等方面说明了该类型放电辉光结构的时空演化过程;分别从电子增长率和电场强度分布两个角度比较和分析了该类型放电中阴极位降区范围的定义,并探讨了发光最强点位置与阴极位降区边界的关系,认为利用电场强度分布来定义该类型放电的阴极位降区范围更加合理,且在电流下降沿内,光强最强点始终处于阴极位降区内部.研究了外施电压、阻挡介质二次电子发射系数γ和N2含量对间隙电压、电流密度和阴极位降区特性等的影响规律.发现:在二次电子发射系数γ不变时,阴极位降区宽度与电流密度具有负线性相关关系;利用阴极位降区的伏安特性证明了该类型放电属于亚辉光放电靠近正常辉光放电的部分;主要考虑N2与He的Penning效应时,电流密度和带电粒子密度在一定N2含量下具有最大值等.
    A fluid model is built in this paper to describe and study the atmospheric pressure dielectric barrier glow discharge pulse in helium. The collision excitation and ionization reactions between electron and helium atom, heavy particles reactions, and Penning reaction between N2 and metastable He are taken into account in the fluid model. It is found that there are cathode falling, negative glow, Faraday dark, positive column and anode glow areas in atmospheric pressure glow discharge pulse, and the ranges of different areas are changing during the current falling edge. The ranges of cathode falling area are defined according to electron production balance position (definition 1, set as dc1) and the electrical field distribution around cathode (definition 2, set as dc2), respectively. Both dc1 and dc2 decreaseas the current grows to its peak in one discharge pulse, which reflects the transition from Townsend discharge to glow discharge. Compared with negative glow peak position, the boundary of cathode falling area by definition 1 is closer to cathode. However, the dc1 cannot reflect the cathode potential falling value and lose its definition after current peak moment. The dc2 can reflect the cathode potential falling value but it causes the overlapping between cathode falling and negative glow areas. At the current peak moment, the glow peak is located at the boundary of cathode falling area according to definition 2 while the glow peak is always located in the cathode falling area during the current falling edge. The cathode falling area characteristics can be influenced by different factors, e. g. applied voltage, secondary electron emission coefficient γ and N2 content. By changing applied voltage, it is found that the electrical potential dropping in cathode falling area increases as the average current density decreases, which indicates that the atmospheric pressure dielectric barrier glow discharge pulse is a subnormal glow discharge, and it is close to the normal glow discharge region. When γ dc1 and dc2 increase sharply with γ decreasing. When γ >0.02, dc1 and dc2 increase slowly with γ increasing. When N2 content is greater than 4 ppm, dc1 and dc2 first decrease and then increase slowly. The electrical potential falling of cathode is changeless with N2 content changing. However, the voltage across the gas gap decreases with N2 content changing because the Penning effect lowers the breakdown voltage of the gas gap. The spatial average current density has a highest value when N2 content is about 35 ppm, which also means that the spatial average charged particle density has the highest value in the same situation. Moreover, when the secondary electron emission coefficient is a constant, both dc1 and dc2 have negative linear relationship with the average current density.
      通信作者: 常正实, changzhsh1984@163.com;gjzhang@mail.xjtu.edu.cn ; 张冠军, changzhsh1984@163.com;gjzhang@mail.xjtu.edu.cn
    • 基金项目: 国家自然科学基金(批准号:51307133,51521065,51477135)、国家重点基础研究发展计划(批准号:2015CB251003)、中国博士后科学基金(批准号:2016M590946)、中央高校基本科研业务费(批准号:xjj2016003)和电力设备电气绝缘国家重点实验室基金(批准号:EIPE16314)资助的课题.
      Corresponding author: Chang Zheng-Shi, changzhsh1984@163.com;gjzhang@mail.xjtu.edu.cn ; Zhang Guan-Jun, changzhsh1984@163.com;gjzhang@mail.xjtu.edu.cn
    • Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 51307133, 51521065, 51477135), the National Basic Research Program of China (Grant No. 2015CB251003), the China Postdoctoral Science Foundation (Grant No. 2016M590946), the Fundamental Research Fund for the Central Universities, China (Grant No. xjj2016003), and the State Key Laboratory of Electrical Insulation and Power Equipment, China (Grant No. EIPE16314).
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    Tochikubo F, Chiba T, Watanabe T 1999 Jpn. J. Appl. Phys. 38 5244

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    Liu D X, Bruggeman P, Iza F, Rong M Z, Kong M G 2010 Plasma Sources Sci. Technol. 19 025018

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    Song X X, Tan Z Y, Chen B 2012 IEEE Trans. Plasma Sci. 40 3471

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    Lee D, Jin M P, Sang H H, Kim Y 2005 IEEE Trans. Plasma Sci. 33 949

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    Martens T, Bogaerts A 2008 Appl. Phys. Lett. 92 041504

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    Zhang Z H, Shao X J, Zhang G J, Li Y X, Peng Z Y 2012 Acta Phys. Sin. 61 045205 (in Chinese)[张增辉, 邵先军, 张冠军, 李娅西, 彭兆裕2012物理学报61 045205]

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    Zhang Z H, Zhang G J, Shao X J, Chang Z S, Peng Z Y, Xu H 2012 Acta Phys. Sin. 61 245205 (in Chinese)[张增辉, 张冠军, 邵先军, 常正实, 彭兆裕, 许昊2012物理学报61 245205]

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    Ricard A, Décomps P, Massines F 1999 Surf. Coat. Technol. 112 1

    [26]

    Lazarou C, Koukounis D, Chiper A S, Costin C, Topala I, Georghiou G E 2015 Plasma Sources Sci. Technol. 24 035012

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    Chang Z S, Jiang N, Zhang G J, Cao Z X 2014 J. Appl. Phys. 115 103301

  • [1]

    Kogelschatz U 2002 IEEE Trans. Plasma Sci. 30 1400

    [2]

    Li D, Liu D X, He T T, Li Q S, Wang X H, Kong M G 2015 Phys. Plasmas 22 123501

    [3]

    Wang X X 2009 High Voltage Engineering 35 1 (in Chinese)[王新新2009高电压技术35 1]

    [4]

    Chiper A S, Rusu B G, Nastuta A V, Popa G 2009 IEEE Trans. Plasma Sci. 37 2098

    [5]

    Luo H Y, Liang Z, Lv B, Wang X X, Guan Z C, Wang L M 2007 Appl. Phys. Lett. 91 221504

    [6]

    Massines F, Ségur P, Gherardi N, Khamphan C, Ricard A 2003 Surf. Coat. Technol. 174-175 08

    [7]

    Yao C W, Chang Z S, Ma H C, Xu G M, Mu H B, Zhang G J 2016 IEEE Trans. Plasma Sci. 44 2576

    [8]

    Xu X J, Zhu D C 1996 Gas Discharge Physics (Shanghai:Fudan University Press) p121(in Chinese)[徐学基, 诸定昌1996气体放电物理(上海:复旦大学出版社)第121页]

    [9]

    Fu Y Y, Luo H Y, Zou X B, Wang X X 2015 Phys. Plasmas 22 023502

    [10]

    Maric D, Hartmann P, Malovic G, Donkó Z, Petrovic Z 2003 J. Phys. D:Appl. Phys. 36 2639

    [11]

    Shi J J, Kong M G 2003 J. Appl. Phys. 94 5504

    [12]

    Yao C W, Chang Z S, Zhang G J, Li P, Zhao A X 2015 High Voltage Engineering 41 2084 (in Chinese)[姚聪伟, 常正实, 张冠军, 李平, 赵艾萱2015高电压技术41 2084]

    [13]

    Hagelaar G J M, Pitchford L C 2005 Plasma Sources Sci. Technol. 14 722

    [14]

    Ellis H W, Pai R Y, Niel E W, Mason E A, Viehland L A 1976 At. Data Nucl. Data Tables 17 177

    [15]

    Yuan X, Raja L L 2003 IEEE Trans. Plasma Sci. 31 31 495

    [16]

    Tochikubo F, Chiba T, Watanabe T 1999 Jpn. J. Appl. Phys. 38 5244

    [17]

    Liu D X, Bruggeman P, Iza F, Rong M Z, Kong M G 2010 Plasma Sources Sci. Technol. 19 025018

    [18]

    Song X X, Tan Z Y, Chen B 2012 IEEE Trans. Plasma Sci. 40 3471

    [19]

    Lee D, Jin M P, Sang H H, Kim Y 2005 IEEE Trans. Plasma Sci. 33 949

    [20]

    Merrill P W 1917 Astrophysical Journal 46 771

    [21]

    Martens T, Bogaerts A 2008 Appl. Phys. Lett. 92 041504

    [22]

    Morrow R, Sato N 1999 J. Phys. D:Appl. Phys. 32 L20

    [23]

    Zhang Z H, Shao X J, Zhang G J, Li Y X, Peng Z Y 2012 Acta Phys. Sin. 61 045205 (in Chinese)[张增辉, 邵先军, 张冠军, 李娅西, 彭兆裕2012物理学报61 045205]

    [24]

    Zhang Z H, Zhang G J, Shao X J, Chang Z S, Peng Z Y, Xu H 2012 Acta Phys. Sin. 61 245205 (in Chinese)[张增辉, 张冠军, 邵先军, 常正实, 彭兆裕, 许昊2012物理学报61 245205]

    [25]

    Ricard A, Décomps P, Massines F 1999 Surf. Coat. Technol. 112 1

    [26]

    Lazarou C, Koukounis D, Chiper A S, Costin C, Topala I, Georghiou G E 2015 Plasma Sources Sci. Technol. 24 035012

    [27]

    Chang Z S, Jiang N, Zhang G J, Cao Z X 2014 J. Appl. Phys. 115 103301

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出版历程
  • 收稿日期:  2016-09-02
  • 修回日期:  2016-10-14
  • 刊出日期:  2017-01-20

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