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.
出处
《黑龙江电力》
CAS
2010年第6期404-407,共4页
Heilongjiang Electric Power
关键词
雷电流
波形
等值模型
MATLAB仿真
lightning current
waveform
equivalent model
matlab simulation
