基于改进谐波合成法模拟输电塔线风速  

Simulation of Transmission Tower-line's Wind Speed Based on Improved Superposition Harmonic Method

作　　者：甘凤林[1] 杨振伟[1] 代晓光[1] 

机构地区：[1]东北电力大学建筑工程学院,吉林省吉林市132012

出　　处：《电力建设》2009年第10期17-19,共3页Electric Power Construction

基　　金：东北电网公司科技项目(2008371文)

摘　　要：根据脉动风的特点,应用谐波合成法来模拟输电塔线风速。为提高计算速度,提出采用按时域抽取的快速傅立叶变换算法来改进谐波合成法,仿真结果表明模拟风速谱与目标风速谱吻合很好,且计算速度大幅提高,可为输电塔线的抗风研究提供参考。Based on basic characteristics of fluctuating wind and in order to increase the calculation speed, superposition harmonic method adopting the DIT-FFT technology in time domain was presented. Simulation results proved that the simulated wind speed power spectrum tallied well with target wind speed power spectrum. So it can offer consultative comments for transmission tower-line＇s anti-wind study.

关 键 词：输电塔线 脉动风 按时域抽取的快速傅立叶变换 风速 谐波合成法 

分 类 号：TM726[电气工程—电力系统及自动化]