弯曲雷电回击通道的建模及其辐射场计算

摘要
图/表
参考文献
相关文章 (1)

全文: PDF (794 KB)
输出: BibTeX | EndNote (RIS)

摘要在对雷电回击过程产生的电磁辐射场进行计算时,大部分文献都假设云地放电通道是一条直线,但直线雷电回击通道模型不能准确反映雷电回击通道的物理特性。本文对雷电弯曲回击通道进行了建模,并提出了回击通道辐射电磁场有效观察距离的概念。本模型可以精确刻画雷电辐射电磁场波形的次峰和振荡等特点,模拟其高频频谱分量。研究了弯曲通道的电流线段倾斜角度、雷电流回击速度、观察距离对其辐射电磁场的影响。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	张岩
	刘福贵
	汪友华
	王川川
	刘荣美

关键词 ：垂直雷电通道, 弯曲雷电通道, 辐射场, 观察距离

Abstract：When calculating the radiated fields generated from lightning stroke return, major literatures assume that cloud-to-ground path is a straight line. But straight-line model does not reflect the physical features of lightning return stroke channel exactly. In this paper, the model of a tortuous lightning channel is formulated, and the concept of effective observable distance of lightning return stroke channel’s radiated field is proposed. This model can precisely describe the sub-peaks and oscillation of radiated fields, and model the high frequency spectrum. In addition, this paper also discusses the effects that current segment’s tilt angle, current propagating velocity and observable distance have on radiated fields.

Key words： Perpendicular lightning channel tortuous lightning channel radiated field observable distance

收稿日期: 2013-10-11 出版日期: 2014-05-22

PACS:

P427

基金资助:国家重点基础研究发展计划（973计划）前期研究专项课题资助项目（2012CB723306）

作者简介: 张岩男, 1983年生, 博士研究生, 主要从事电磁场数值计算与磁技术及应用, 电磁兼容技术等方面的研究。刘福贵男, 1972 年生, 教授, 博士生导师, 主要从事电磁场数值计算与磁技术及应用等方面的研究。

引用本文:

张岩, 刘福贵, 汪友华, 王川川, 刘荣美. 弯曲雷电回击通道的建模及其辐射场计算[J]. 电工技术学报, 2013, 28(2增): 146-151. Zhang Yan, Liu Fugui, Wang Youhua, Wang Chuanchuan, Liu Rongmei. Formulation the Model of a Kind of Tortuous Lightning Channel and Calculation of Its Radiated Fields. Transactions of China Electrotechnical Society, 2013, 28(2增): 146-151.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2013/V28/I2增/146

[1] 陈亚洲, 肖雪荣. 地表近场LEMP与回击电流的近似性[J]. 高电压技术, 2007, 33(12): 23-26. Chen Yazhou, Xiao Xuerong. Characteristic of approximation between LEMP in near area and channel-base current[J]. High Voltage Engineering, 2007, 33(12): 23-26.
[2] 李琳, 齐秀君. 配电线路感应雷过电压计算[J]. 高电压技术, 2011, 37(5): 1093-1099. Li Lin, Qi Xiujun. Calculation of the lightning induced voltages on power distribution line[J]. High Voltage Engineering, 2011, 37(5): 1093-1099.
[3] Hill R D. Analysis of irregular paths of lightning channels[J]. GeoPhys. Res., 1968, 73(6): 1897-1906.
[4] Hill R D. Electromagnetic radiation from erratic paths of lightning strokes[J]. Geophys. Res., 1969, 74 (8): 1922-1929.
[5] LeVine D M, Meneghini R. Simulation of radiation from lightning return stroke: the effects of tortuosity[J]. Radio Science, 1978, 13 (5): 801-809.
[6] Vecchi G, Labate D, Canavero F. Fractal approach to lightning radiation on a tortuous channel[J]. Radio Science, 1994, 29 (4): 691-704.
[7] 张其林, 冯建伟, 赵中阔, 等. 分形闪电通道模型的建立及其电磁辐射特征[J]. 大气科学学报, 2010, 33(6): 719-724. Zhang Qilin, Feng Jianwei, Zhao Zhongkuo, et al. Formulation of fractal channel model and characteristics of corresponding electromagnetic fields[J]. Transactions of Atmospheric Sciences, 2010, 33(6): 719-724.
[8] Weidman C D, Krider E P. The fine structures of lightning return stroke wave forms[J]. Geophys. Res., 1978, 83(C12): 6239-6247.
[9] Lupo G, Petrarca C, Tucci V, et al. EM fields associated with lightning channels: On the effect of torousity and branching[J]. IEEE Trans. on EMC, 2000, 42(4): 394-404.
[10] LeVine D M Willett J C. The influences of channel geometry on the fine scale structure of radiation from lightning return stroke[J]. Geophys Res., 1995, 100(D9): 18629-18638.
[11] Vecchi G, Labate D, Canavero F C. Frctal approach to lightning radition on a lightning tortuous channel[J]. Radio Science, July-August 1994, 29(4): 691-704.
[12] Vecchi G, Zich R E, Canavero F C. A study of effect of channel branching on lightning radiation[C]. in Int. Zurich Symposium on EMC, Zurich(CH), Feb, 1997.
[13] Thomson E M. Exact expressions for electric and magnetic field from a propagating lightning channel with arbitrary orientation[J]. Geophys Res, 1999, 104(D18): 22293-22300.
[14] Valdiva J A, Milikh G, Papadopoulos K. Red sprites: Lightning as a fractal antenna[J]. Geophys. Res. Lett., 1997, 24(24): 3169-3172.
[15] 任顺平, 迟建平, 庄洪春, 等. 分形闪道及其电磁场仿真[J]. 电网技术, 1999, 23(4): 11-14. Ren Shunping, Chi Jianping, Zhuang Hongchun, et al. Simulation upon fractal lightning channel and its radiation[J], Power System Technology. 1999, 23(4): 11-14.
[16] Rubinstein M, Uman M A. Methods for calculating the electromagnetic fields from a known source distribution:application to lightning[J]. IEEE Trans. on EMC, 1989, 32(2): 183-189.
[1][17] Paolone Mario, Rachidi Farhad. Borghetti alberto nucci carlo alberto, rubinstein Marcos, Vladimir A. Rakov and Uman.M.A. Lightning electromagnetic field coupling to overhead lines: theory, numerical simulations, and experimental validation[J]. IEEE Trans. on EMC, 2009, 51(3): 532-547.