高电压技术
高電壓技術
고전압기술
HIGH VOLTAGE ENGINEERING
2011年
7期
1766-1774
,共9页
介质阻挡放电(DBD)%均匀放电%放电特性%放电参量%氦气%氖气
介質阻擋放電(DBD)%均勻放電%放電特性%放電參量%氦氣%氖氣
개질조당방전(DBD)%균균방전%방전특성%방전삼량%양기%내기
dielectric barrier dischargeIDBD）%homogeneous discharge%discharge characteristic%discharge parameter%He%Ne
均匀介质阻挡放电（HDBD）相对于丝状模式具有更为广阔的应用前景，为研究其机理特性，在8mm气隙距离的氦气和氖气中分别实现了大气压HDBD；通过电压电流波形和Lissajous图形测量以及发光图像拍摄比较了两者放电特性的区别；研究了不同电压幅值下两者各放电参量的变化规律，并结合放电机理分析对实验结果进行了讨论。研究结果表明：氦气和氖气中HDBD放电特性有着明显的区别。在8mm气隙距离下，随外加电压幅值增加，氦气HDBD的电流一直表现为单电流脉冲形式，且有“剩余电流峰”出现，其幅值较氖气中电流脉冲幅值大，且持续时间较短；氖气HDBD电流随外加电压幅值增加由单脉冲发展到为多电流脉冲形式，且多脉冲电流幅值依次递减。随着外加电压幅值的增加，两种气体中HDBD的各放电参量都增加，但是增加幅度有所不同。
均勻介質阻擋放電（HDBD）相對于絲狀模式具有更為廣闊的應用前景，為研究其機理特性，在8mm氣隙距離的氦氣和氖氣中分彆實現瞭大氣壓HDBD；通過電壓電流波形和Lissajous圖形測量以及髮光圖像拍攝比較瞭兩者放電特性的區彆；研究瞭不同電壓幅值下兩者各放電參量的變化規律，併結閤放電機理分析對實驗結果進行瞭討論。研究結果錶明：氦氣和氖氣中HDBD放電特性有著明顯的區彆。在8mm氣隙距離下，隨外加電壓幅值增加，氦氣HDBD的電流一直錶現為單電流脈遲形式，且有“剩餘電流峰”齣現，其幅值較氖氣中電流脈遲幅值大，且持續時間較短；氖氣HDBD電流隨外加電壓幅值增加由單脈遲髮展到為多電流脈遲形式，且多脈遲電流幅值依次遞減。隨著外加電壓幅值的增加，兩種氣體中HDBD的各放電參量都增加，但是增加幅度有所不同。
균균개질조당방전（HDBD）상대우사상모식구유경위엄활적응용전경，위연구기궤리특성，재8mm기극거리적양기화내기중분별실현료대기압HDBD；통과전압전류파형화Lissajous도형측량이급발광도상박섭비교료량자방전특성적구별；연구료불동전압폭치하량자각방전삼량적변화규률，병결합방전궤리분석대실험결과진행료토론。연구결과표명：양기화내기중HDBD방전특성유착명현적구별。재8mm기극거리하，수외가전압폭치증가，양기HDBD적전류일직표현위단전류맥충형식，차유“잉여전류봉”출현，기폭치교내기중전류맥충폭치대，차지속시간교단；내기HDBD전류수외가전압폭치증가유단맥충발전도위다전류맥충형식，차다맥충전류폭치의차체감。수착외가전압폭치적증가，량충기체중HDBD적각방전삼량도증가，단시증가폭도유소불동。
The HDBDs in 8mm gas gap distance in helium and neon at atmospheric pressure are obtained, respectively. The differences between their discharge characteristics are compared by means of voltage and current waveforms measurement, Lissajous figures measurement, and light-emission pictures taking. The change of discharge parameters of the two HDBDs with various amplitude of applied voltage are studied, and the experimental results are explained with the analysis of discharge mechanism. Results show that there are obvious differences between the dis- charge characteristics of HDBD in He and in Ne. As the amplitude of the applied voltage increases, the current of HDBD in He gas always appears as a single discharge current, and the presence of ＂residual current peak＂ is observed; the amplitude of current pulses in HDBD in He gas is higher than that of HDBD in Ne gas, and its duration is shorter. As the amplitude of the applied voltage increases, the current of HDBD in Ne gases changes from a single discharge current to multiple discharge current pulses, and the amplitude of the multiple current pulses decreases in sequence. The discharge parameters of these two HDBDs increase with the increase of the amplitude of applied voltage, but the changing trends are different.
