西北地区750 kV并行输电线路三维工频磁场计算与分析  

Calculation and Analysis of Three-Dimensional Power Frequency Magnetic Field in 750 kV Parallel Transmission Lines in Northwest China

作　　者：郭留明[1] 雷佳明[1] 王海亭 陈璞 贠彦祺 刘建隆 GUO Liuming1;LEI Jiaming1;WANG Haiting2;CHEN Pu3;YUN Yanqi3;LIU Jianlong3

机构地区：[1]西北电力设计院有限公司,陕西西安710075 [2]国网青海省电力公司,青海西宁810008 [3]甘肃省核与辐射安全中心,甘肃兰州730020

出　　处：《青海电力》2018年第1期5-10,共6页Qinghai Electric Power

基　　金：国家重点基础研究发展计划(973计划)重大项目(2011CB209400)

摘　　要：为研究西北地区750 kV并行输电线路线下三维工频磁场分布特征,根据悬链线方程建立气象和档距等参数的三维工频磁场计算模型,分析单回与同塔双回不同组合情况下并行输电线路线下工频磁场分布特征;对比分析了并行间距变化、杆塔相对位置、相序排列方式对并行输电线路线下工频磁场的影响。In order to study the three-dimensional power frequency magnetic field distribution characteristics of the 750 kV parallel transmission lines in northwestern China, a three-dimensional power frequency magnetic field calculation model for meteorology and span parameters was established based on the catenary equations, and the different combinations of single-circuit and double-circuits on the same tower were analyzed. Under the condition of parallel transmission lines, the magnetic field distribution characteristics of power frequency are compared; the influence of parallel spacing variation, tower relative position and phase sequence arrangement on the power frequency magnetic field under the parallel transmission line route is compared and analyzed.

关 键 词：750 kV并行输电线路 三维工频磁场 并行间距 杆塔相对位置 相序排列方式 

分 类 号：TM154.1[电气工程—电工理论与新技术] TM75