对AC UHV输电线附近可听噪声预测公式的评估  

Evaluation of Audible Noise Predicting Formulas for AC UHV Transmission Lines

作　　者：俞集辉[1] 杨越[1] 何健[1] 杨光[1] 季娟[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030

出　　处：《高电压技术》2009年第3期451-456,共6页High Voltage Engineering

摘　　要：特高压输电中,导线的选择是由输电线下的可听噪声大小决定的,所以可听噪声的预测十分重要。为了从不同机构总结出的多种半经验公式中选择最适合用来预测我国特高压交流输电线下可听噪声大小的公式,结合我国对特高压交流输电线的要求,将相导线水平和正三角排列方式下可听噪声大小的不同预测结果与测量结果进行对比和分析。结果表明:相导线水平排列大雨时可用ENEL公式或IREQ公式计算,小雨时可用ENEL或GE公式计算;相导线正三角排列大雨时可用ENEL公式或BPA公式计算,小雨时只有BPA公式最适合。所以,我国特高压交流输电线下可听噪声的计算在相导线水平排列时选用ENEL公式,相导线正三角方式排列时选用BPA公式。On UHV transmission, the audible noise under transmission lines decides the conductor choice, so predic tion of audible noise under UHV transmission lines is the most important factor in planning and constructing UHV transmission lines. For choosing the optimum audible noise predicting formulas from several existing ones, and to meet China＇s requirements of voltage level and bundle conductor, the calculation and the measurement is compared in horizon phase conductors model and triangle phase conductors one. The result shows that： in horizon phase conductors model, ENEL formula and IREQ formula can be used for calculating the audible noise in heavy rain; ENEL formula and GE formula can be used in drizzle. In triangle phase conductors model, ENEL formula and BPA formula can be used for the audible noise calculation in heavy rain; only BPA formula in drizzle. Therefore, in our country, ENEL formula is the best choice for the horizon model in predicting audible noise under UHV transmission lines, while BPA formula for the triangle model.

关 键 词：可听噪声 预测公式 交流输电线 特高压 影响因素对比 相导线水平排列 相导线三角排列 

分 类 号：TM726.1[电气工程—电力系统及自动化]