用户名: 密码: 验证码:
尖端导体电晕放电电流计算与实验研究
详细信息    查看官网全文
摘要
电晕电流是电晕放电辐射场计算的重要参数。本文在建立尖端导体电晕电流计算模型的计算基础上,利用气体放电理论计算了空气电子电流,推导了尖端导体电晕放电电流的时域解析表达式,分析讨论了电晕电流的波形特性和影响因素,并搭建尖端导体电晕电流模拟测试系统,验证计算结果的准确性。计算和实验结果表明,导体电晕电流的频率分布非常宽,超过1GHz,其主要能量分布在500M以下;随着导体充电电压的升高,电流的峰值增大;波形上升沿时间随着电压的升高而变大。
Corona current is a significant parameter for calculating the radiation field.The air electron current was computed based on the gas discharge theory,and the analytical expression for corona current generated by tip conductor corona discharging was derived to establish the calculation model for corona current.The waveform characteristics of corona current and the affect factors were discussed.In order to verify the accuracy,a simulated corona discharging and current measuring system was established.The results were compared between the theory calculation and the test.The corona current has a wide frequency distribution and the high frequency component can be as high as 1GHz,and its energy mainly focuses on within 500MHz.The pear value and the rising time of the corona current waveform will increase as the applied voltage increase.
引文
[1]Huan Zhanfu,Yong Junxie,and Jun Zhang.Analysis of corona discharge interference on antennas on composite airplanes[J].IEEE Trans.on Electromagnetic Compatibility,2008,50(4):822-827.
    [2]SI Wenrong,LI Junhao,YUAN Peng.Digital Detection,Grouping and Classification of Partial Discharge Signals at DC Voltage[J].IEEETransactions on Dielectrics and Electrical Insulation,2008,15(6):1663-1674.
    [3]Pearson J S,Farish O,Hampton B F,et al.Partial discharge diagnostics for gas insulated substations[J].Dielectrics and Electrical Insulation,IEEE Transactions on,1995,2(5):893-905.
    [4]Eng.C.Gary,Dr.ing.G..Dragan,Dr.I.Lungu.Impulse corona discharge energy around the conductors[C].Industry Applications Society Annual Meeting.1990,vol.1:922-924.
    [5]Y.Zebboudj.Measurements of current and electric field distributions beneath a positive DCwire-to-plane corona using a liner biased probe[J].IEE Proc.-Sci.Meas.Technol.,2000.3,Vol.147,No.2:74-80.
    [6]A.Kasdi,H.Yala and Y.Zebboudj.Finite element analysis of bipolar corona[C].Internationl conference on solid dielectrics,Toulouse,France,2004.
    [7]M.Abdel-Salam,S.Abdel-Sattar.Calculation of corona V-I characteristics of monopolar bundles using the charge simulation method[J].IEEETans.On Electrical insulation,1989.8,Vol.24,No.4:669-679.
    [8]R.G.Olsen.Radio noise due to corona on a multiconductor power line above a dissipative earth[J].IEEE Trans.On Power Delivery,1988.1,Vol.3,No.1:272-287.
    [9]J A Houlgreave,K S Bromley,J C Fothergill.Prediction of monapolar corona charge injection and current distribution in air for complex geometries[C].Seventh interlational conference on dielectric materials measurements and applications,1996.
    [10]M.Davila,J.L.Naredo.Analyzing transients on multiconductor lines with corona[J].IEEE/PESTransmission&Distribution Conference&Expositon.2004.
    [11]Steffen D A,Fowles H M.EM Radiation from Corona Discharges[R].DENVER RESEARCHINST CO,1976.
    [12]朱益民,孔祥鹏.多针对板电晕放电伏安特性研究[J].高电压技术,2006,32(1):57-58.
    [13]罗来龙,徐晓英.电晕区中场强分布与伏安特性的研究[J].武汉理工大学学报,2006,28(5):178-180.
    [14]Fred P.Venditti,Hervert Reno.Electromagnetic Radiation from Corona Discharges[R].Final Report,Contract:N00019-74-0334,25 January1977.
    [15]杨津基.气体放电[M].北京:科学出版社,1981.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700