雷电流特性及其波形分析  

Characteristics and waveform analysis of lightning current

作　　者：王祎菲[1] 仇一凡[1] 冯世涛[1] 赵晨惠[1] 蔡宏飞[1] 王勇[2] 

机构地区：[1]东北电力大学,吉林吉林132012 [2]东北电网有限公司长春超高压局,吉林长春130041

出　　处：《黑龙江电力》2010年第6期404-407,共4页Heilongjiang Electric Power

摘　　要：通过对雷电流特性的分析,阐述主放电通道的波阻抗、雷电流波形,及幅值概率分布和雷电流极性等特点。根据其特点,建立了雷电流波形的三种主要数学等值模型,即双指数函数模型,霍德勒模型和脉冲函数模型。并应用Matlab软件对其进行仿真,得出不同模型间的特性差别及其适用范围。Through the analysis of characteristics of lightning current,this paper expounds wave impedance and lightning-current waveform of main discharging,amplitude probability distribution and lightning current polarity.On the basis of characteristic,three main mathematical equivalent models,bi-exponential function model,Hodler model and impulse function model,are established.The paper also obtains distinctions among different models and their applicability by Matlab simulation.

关 键 词：雷电流 波形 等值模型 MATLAB仿真 

分 类 号：TM863[电气工程—高电压与绝缘技术]