| 雷电梯级先导通道电流模型 |
| |
| 引用本文： | 刘宁,肖春燕.雷电梯级先导通道电流模型[J].北京航空航天大学学报,2009,35(5):576-579. |
| |
| 作者姓名： | 刘宁 肖春燕 |
| |
| 作者单位： | 北京航空航天大学自动化科学与电气工程学院,北京,100191;北京航空航天大学自动化科学与电气工程学院,北京,100191 |
| |
| 基金项目： | 国家自然科学基金资助项目(50807001) |
| |
| 摘 要： | 雷电梯级先导通道电流模型是雷电运动仿真和雷击研究的基础,在防雷工程、雷电绕击输电线路的理论研究中必不可少.建立了梯级先导的物理模型,该模型由主通道和先导头部区域两部分组成;给出了雷电梯级先导通道电流的数学模型,该模型较精确地描述了雷电向地面发展的梯级性和先导头部电荷聚集特性;采用模拟电荷法和偶极子法求解了雷电梯级先导产生的地面电场,仿真结果表明,远区地面电场的平均峰值、峰峰时间间隔与雷电观测值,以及不同回击电流峰值下的近区地面电场与人工引雷观测结果均具有较好的一致性.
|
| 关 键 词： | 雷电 梯级先导 电流模型 击穿放电 电场 |
| 收稿时间： | 2008-08-10 |
Model of stepped leader current for simulation of lightning |
| |
| Liu Ning,Xiao Chunyan.Model of stepped leader current for simulation of lightning[J].Journal of Beijing University of Aeronautics and Astronautics,2009,35(5):576-579. |
| |
| Authors: | Liu Ning Xiao Chunyan |
| |
| Institution: | School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
| |
| Abstract: | Model of stepped leader current is the basis of lightning movement simulation and strike analysis,and it is indispensable for lightning protection design,theoretical research of shielding failure for transmission lines,etc..Physical model of stepped leader was given,which includes a main channel and a tip.Current model of stepped leader was also given,which well simulates the stepwise propagation of lightening and charge change properties of stepped leader's tip.Electric field on the ground level produced b... |
| |
| Keywords: | lightning stepped leader current model discharge electric fields |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京航空航天大学学报》浏览原始摘要信息 |
| 点击此处可从《北京航空航天大学学报》下载免费的PDF全文 |
|
