地表垂直分层条件下倾斜通道雷电电磁场特性研究
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- 英文论文题名：The Influence of Vertical Layered Ground on Oblique Discharge Channel Lightning Electromagnetic Fields
- 论文作者：王晓嘉 ; 陈亚洲 ; 万浩江 ; 王李鹏
- 英文论文作者：WANG Xiao-jia ; CHEN Ya-zhou ; WAN Hao-jiang ; WANG Lipeng ; Institute of Electrostatic and Electromagnetic Protection ; Ordnance Engineering College
- 年：2015
- 作者机构：军械工程学院电磁环境模拟国家重点实验室;
- 论文关键词：雷电回击电磁场 ; 时域有限差分法 ; 分层大地电导率 ; 倾斜放电通道 ; 倾斜角度
- 英文论文关键词：lightning return stroke electromagnetic fields ; finite-difference time-domain method ; layered ground conductivity ; oblique discharge channel ; tilt angle
- 会议召开时间：2015-08-12
- 会议录名称：静电放电：从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议论文集
- 语种：中文
- 分类号：P427.3
- 学会代码：WLJD
- 会议名称：静电放电 ; 从地面新技术应用到空间卫星安全防护—中国物理学会第二十届全国静电学术会议
- 会议地点：中国河北石家庄
- 主办单位：中国物理学会静电专业委员会
- 学会名称：中国物理学会静电专业委员会
- 页数：7
- 文件大小：787k
- 原文格式：D
- 会议级别：全国
摘要
为了得到垂直分层大地电导率和放电通道倾斜角度对斜向通道雷电电磁场的影响规律,在差分条件下对三维直角坐标系的倾斜放电通道加源方程进行了推导,在此基础上采用坐标伸缩的完全匹配层(CPML)作为吸收边界截断条件,利用时域有限差分(FDTD)法对倾斜通道雷电电磁场进行了计算。计算结果表明,右侧电导率主要影响电磁场峰值部分并且对电场分量影响较大对磁场分量影响较小;而左侧电导率的变化则主要影响电磁场的波尾幅值,并且距离越远电导率对波尾幅值的影响越小。当放电通道倾斜角度改变时,雷电电磁场峰值会随着倾斜角度的增加而出现明显的上升,同时观测点与放电通道之间的距离越大倾斜角度对电磁场的影响越明显。
In order to get the influence of vertical layered ground conductivity and tilt angle on oblique channel lightning electromagnetic pulse(LEMP)fields,the current source equations of oblique channel lightning electromagnetic fields are derived under conditions of finite-difference.After that the finite-difference time-domain(FDTD)method was used in three-dimensional Cartesian coordinate system to calculate electromagnetic fields generated by oblique discharge channel and the convolutional perfectly matched layer(CPML)are used as truncation boundary conditions.The results show that,the left side ground conductivity mainly effect the peak value of electromagnetic fields and has greater impact on electric fields component but has less impact on magnetic field component.However,the right side ground conductivity mainly effect the wave tail amplitude of electromagnetic fields,besides that the impact of ground conductivity on the wave tail amplitude will decrease with the increase of the distance.When the tilt angle changing,the peak value of electromagnetic fields will increase with the increasing of the tilt angle,moreover,the impact of tilt angle on electromagnetic fields will be more greater with the increasing of the distance.
In order to get the influence of vertical layered ground conductivity and tilt angle on oblique channel lightning electromagnetic pulse(LEMP)fields,the current source equations of oblique channel lightning electromagnetic fields are derived under conditions of finite-difference.After that the finite-difference time-domain(FDTD)method was used in three-dimensional Cartesian coordinate system to calculate electromagnetic fields generated by oblique discharge channel and the convolutional perfectly matched layer(CPML)are used as truncation boundary conditions.The results show that,the left side ground conductivity mainly effect the peak value of electromagnetic fields and has greater impact on electric fields component but has less impact on magnetic field component.However,the right side ground conductivity mainly effect the wave tail amplitude of electromagnetic fields,besides that the impact of ground conductivity on the wave tail amplitude will decrease with the increase of the distance.When the tilt angle changing,the peak value of electromagnetic fields will increase with the increasing of the tilt angle,moreover,the impact of tilt angle on electromagnetic fields will be more greater with the increasing of the distance.
引文
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[6]C.A.F.Sartori and J.R.Cardoso,―An analytical-FDTDmethod for near LEMP calculation,‖IEEE Trans.Magn.,vol.36,no.4,pp.1631-1634,Jul.2000.
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[8]杨波,周碧华,孟鑫.地闪雷电电磁脉冲在大地中的分布研究[J].物理学报.2010,59(12):8978-8985.Yang Bo,Zhou Bi-hua,Meng Xin.Distribution of cloud-to-ground lightning electromagnetic pulse fields under the gruond.Acta.Phys.Sin.2010,59(12):8978-8985.
[9]张明霞,崔翔,陈家宏,等.水平多层土壤对雷电定量精度的影响[J].高电压技术.2009,35(12):2937-2943.ZHANG Ming-xia,CUI Xiang,CHEN Jia-hong,et al.Effect of horizontal multi-layer soil on;ighting quantification[J].High Voltage Engineering,2009,35(12):2937-2943.
[10]R.D.Hill,Analysis of irregular paths of lightning channels,J.Geophys.Res.1968,73(6),1922-1929,
[11]J.G.H.Murcia,H.T.Sánchez.Lightning electromagnetic fields associated to tortuous channels over a finitely conductive ground[C],IX International Symposium on Lightning Protection,Igua?u,Brazil.Nov.2007.
[12]陈亚洲,王晓嘉,万浩江.闪电回击工程模型的有效性研究[J].高电压技术,2012,38(10):2683-2690.CHEN Ya-zhou,WANG Xiao-jia,WAN Hao-jiang.Research on the Validity of Return Stroke engineering Models[J].High Voltage Engineering,2012,38(10):2683-2690.
[13]Chen Y,Wan H,Wang X.On the relationship between the lightning electromagnetic field and the channel-base current based on the TL model[J].Journal of Electrostatics,2013,71(6):1020-1028.
[14]张飞舟,陈亚洲,魏明,刘尚合.雷电电流的脉冲函数表示[J].电波科学学报,2002,17(1):51-53.ZHANG Fei-zhou,CHEN Ya-zhou,WEI Ming,LIU Shang-he.Representing the lightning current by pulse function[J].Chinese Journal of Radio Science,2002,17(1):51-53
[15]Rachidif F,Nucci C A,Ianoz M,et al.Influence of a lossy ground on lightning-induced voltages on overhead lines[J].IEEETrans.Electromagn.Compat.1996,38(3):250-264.
[16]Berenger J.P.A perfectly matched layer for the absorption of electromagnetic waves[J].J.Comput.Phys,1994,114:185-200.
[17]李先进,周璧华,付卫东,谷深远,等.PML在FDTD法计算地闪回击辐射场中的应用[J].解放军理工大学学报,2007,8(3):261-265.Li xian-jjin,Zhou Bi-hua,Fu Wei-dong,Gu Shen-yuan,et al.PML for FDTD calculation of fields generated by lightning return stroke[J].Journal of PLA Univerity of Science and Technology.2007,8(3):261-265.
[18]Roden J A,Gedney S D.Convolution PML(CPML):An efficient FDTD implementation of the CFS-PML for arbitrary media[J].Microwave Opt.Technol.Lett.2000,27(5):334-339.
[19]Jiangfan Liu,Guobin Wan,Jinsheng Zhang,et al.An Effective CFS-PML Implementation for Cylindrical Coordinate FDTDMethod[J].IEEE Microwave and Guided Wave Lett.2012,22(6):300-302
[20]Komatitsch D,Martin R.An unsplit convolutional perfectly matched layer improved at grazing incidence for the seismic wave equation[J].Society of Exploration Geophysicists.2007,72(5):SM155-SM167
[2]Samaras K,Sandberg C,Salmas C,et al.Electrical surge-protection devices for industrial facilities-A tutorial review[J],IEEE Trans.Ind.Applicat,2007,43(1):150-161.
[3]A.Ba?os,Dipole Radiation in the Presence of a Conducting Half-Space.New York:Oxford,1966.
[4]F.Delfino,R.Procopio,M.Rossi,F.Rachidi,and C.A.Nucci,―Lightning return stroke current radiation in presence of a conducting ground:2.Validity assessment of simplified approaches,‖J.Geophys.Res.,vol.113,pp.D05111-1-D05111-11,2008.
[5]P.A.Tirkas,C.A.Balanis,M.P.Purchine,and G.C.Barber,―Finite-difference time-domain method for electromagnetic radiation,interference,and interaction with complex structures,‖IEEE Trans.Electromagn.Compat.,vol.35,no.2,pp.192-203,May 1993.
[6]C.A.F.Sartori and J.R.Cardoso,―An analytical-FDTDmethod for near LEMP calculation,‖IEEE Trans.Magn.,vol.36,no.4,pp.1631-1634,Jul.2000.
[7]C.Yang and B.Zhou,―Calculation methods of electromagnetic fields very close to lightning,‖IEEE Trans.Electromagn.Compat.,vol.46,no.1,pp.133-141,Feb.2004.
[8]杨波,周碧华,孟鑫.地闪雷电电磁脉冲在大地中的分布研究[J].物理学报.2010,59(12):8978-8985.Yang Bo,Zhou Bi-hua,Meng Xin.Distribution of cloud-to-ground lightning electromagnetic pulse fields under the gruond.Acta.Phys.Sin.2010,59(12):8978-8985.
[9]张明霞,崔翔,陈家宏,等.水平多层土壤对雷电定量精度的影响[J].高电压技术.2009,35(12):2937-2943.ZHANG Ming-xia,CUI Xiang,CHEN Jia-hong,et al.Effect of horizontal multi-layer soil on;ighting quantification[J].High Voltage Engineering,2009,35(12):2937-2943.
[10]R.D.Hill,Analysis of irregular paths of lightning channels,J.Geophys.Res.1968,73(6),1922-1929,
[11]J.G.H.Murcia,H.T.Sánchez.Lightning electromagnetic fields associated to tortuous channels over a finitely conductive ground[C],IX International Symposium on Lightning Protection,Igua?u,Brazil.Nov.2007.
[12]陈亚洲,王晓嘉,万浩江.闪电回击工程模型的有效性研究[J].高电压技术,2012,38(10):2683-2690.CHEN Ya-zhou,WANG Xiao-jia,WAN Hao-jiang.Research on the Validity of Return Stroke engineering Models[J].High Voltage Engineering,2012,38(10):2683-2690.
[13]Chen Y,Wan H,Wang X.On the relationship between the lightning electromagnetic field and the channel-base current based on the TL model[J].Journal of Electrostatics,2013,71(6):1020-1028.
[14]张飞舟,陈亚洲,魏明,刘尚合.雷电电流的脉冲函数表示[J].电波科学学报,2002,17(1):51-53.ZHANG Fei-zhou,CHEN Ya-zhou,WEI Ming,LIU Shang-he.Representing the lightning current by pulse function[J].Chinese Journal of Radio Science,2002,17(1):51-53
[15]Rachidif F,Nucci C A,Ianoz M,et al.Influence of a lossy ground on lightning-induced voltages on overhead lines[J].IEEETrans.Electromagn.Compat.1996,38(3):250-264.
[16]Berenger J.P.A perfectly matched layer for the absorption of electromagnetic waves[J].J.Comput.Phys,1994,114:185-200.
[17]李先进,周璧华,付卫东,谷深远,等.PML在FDTD法计算地闪回击辐射场中的应用[J].解放军理工大学学报,2007,8(3):261-265.Li xian-jjin,Zhou Bi-hua,Fu Wei-dong,Gu Shen-yuan,et al.PML for FDTD calculation of fields generated by lightning return stroke[J].Journal of PLA Univerity of Science and Technology.2007,8(3):261-265.
[18]Roden J A,Gedney S D.Convolution PML(CPML):An efficient FDTD implementation of the CFS-PML for arbitrary media[J].Microwave Opt.Technol.Lett.2000,27(5):334-339.
[19]Jiangfan Liu,Guobin Wan,Jinsheng Zhang,et al.An Effective CFS-PML Implementation for Cylindrical Coordinate FDTDMethod[J].IEEE Microwave and Guided Wave Lett.2012,22(6):300-302
[20]Komatitsch D,Martin R.An unsplit convolutional perfectly matched layer improved at grazing incidence for the seismic wave equation[J].Society of Exploration Geophysicists.2007,72(5):SM155-SM167