1000kV输电线路分裂导线的电晕分析

Corona analysis of bundleconductor on 1000kV transmission line

随着现在输电线路电压等级的不断提升,电晕现象对线路造成的危害愈发明显。为了预防电晕的出现,搭建分裂导线以及绝缘子串的仿真模型,模拟出不同的天气情况对其进行电位与电场的计算,并根据得到的设备表面电场分布图了解电晕现象发生的原因,得到周围环境的变化将导致设备表面电场强度改变的结论,同时通过分析证得的结论,为不同地区输电线路中绝缘材料的选择提供了有效方法。

With the continuous improvement of the current voltage level of transmission lines,the harm caused by corona to lines is becoming more and more obvious.In order to prevent corona,a simulation model of bundled conductor and insulator string is built to simulate different weather conditions and calculate their potential and electric field.The reason for corona is understood according to the electric field distribution map on the equipment surface,and the conclusion that changes in the surrounding environment will lead to changes in the electric field strength on the equipment surface is obtained,it provides an effective method for the selection of insulating materials for transmission lines in different regions.