1000kV交流输电线路噪声的计算模式和减缓措施  

Audible noise predicting formulas and reduction measures for 1000kV UHV AC transmission lines

作　　者：罗超[1] 查智明[1] 姚为方[1] 

机构地区：[1]安徽省电力科学研究院电源技术中心环境工程研究所,安徽合肥230601

出　　处：《电力科技与环保》2015年第1期5-7,共3页Electric Power Technology and Environmental Protection

基　　金：安徽省电力公司科技项目"变电站噪声的三维空间预测模型研究"(5212051350C8)

摘　　要：介绍了几家国内外研究机构建立的用来计算预测输电线路电晕可听噪声的模式,针对皖电东送淮南至上海1 000 k V特高压交流示范工程输电线路的实际参数,建立了相应的计算公式,可以较为准确的预测该类型输电线路可听噪声的大小;交流输电线路电晕产生可听噪声的影响因素众多,根据是否可控将这些因素分为两大类,并分析了单个因素对可听噪声预测值的影响程度,针对输电电路导线参数、杆塔型式和附加材料三个方面的内容,提出了几类切实可行的输电线路可听噪声减缓措施,为后续1000 k V交流输电线路的设计和建设提供参考。Several audible corona noise predicting formulas of UHA transmission lines,founded by BPA from the U. S. A.,ENEL from Italy and EPRI from China etc.,were introduced. Based on the conductor parameter of Huannan-Shanghai 1 000 k V UHV AC double-circuit transmission line,four formulas were presented for predicting the audible noise of the same type transmission lines exactly. The factors resulting in audible noise of UHV AC transmission line are analyzed,including the structure,design and construction of the transmission line,as well as the atmosphere and environments. The measures to reduce audible noise of transmission line were summed up,and such engineering solutions to reduce the audible noise as increasing the diameter of bundled conductors,increasing the bundle numbers and changing the interval between bundled conductors are considered applicable. Some preventive suggestions ale provided in the hope of supporting on-site operation data for designs of 1000 k V UHVAC transmission lines,operation and maintenance.

关 键 词：特高压 电晕 可听噪声 公式 影响因素 

分 类 号：X591[环境科学与工程—环境工程]