500kV双回直线转角塔电场仿真分析  

Electric Field Simulation Analysis on 500kV Double-line Suspension Angle Tower

作　　者：张佰庆 谢伟 康宇斌 童维占 仲彬 

机构地区：[1]江苏省电力公司检修分公司,江苏徐州221000

出　　处：《江苏电机工程》2015年第4期63-66,71,共5页Jiangsu Electrical Engineering

摘　　要：为研究输电线路下方工频电场分布,文中以一典型500kV同塔双回直线转角塔为研究对象,采用三维CAD软件Solid Works建立铁塔精细化计算模型,分别对绝缘子串、均压环、联板等部件按实际尺寸进行等比例建模,运用有限元软件参数化建立导线模型,实现混合网格划分,获得了线路周围的三维电场分布。分析同相序、逆相序及异相序3种不同导线布置方式下的电场差异,结果表明,同塔双回线路在同相序布置时地面场强最大,采用逆相序排列可明显改善线路下方电场环境。计算结果可为超高压输电线路设计提供参考。In this paper, a typical 500 kV double-line suspension angle tower is taken as the target for the analysis of magnetic field under transmission line. Three-dimensional refined model of tower is established in SolidWorks. The equal ratio modeling of insulation strings, grading ring and link plate are provided. Using finite element software the parameters of transmission lines are obtained. Through hybrid mesh generation the three dimension distribution of magnetic field around transmission lines is acquired. The magnetic field distribution analysis of transmission lines with 3 kinds of schemes, namely uniform phase order, inconsistent phase order and various phase order, are provided. The analysis results show that the magnetic field of transmission with uniform phase order has the maximum ground field strength while the inconsistent phase order has minimum ground field strength.

关 键 词：有限元法 双回直线转角塔 3维工频电场 参数化计算 线路走廊 

分 类 号：TM723[电气工程—电力系统及自动化]