摘要
电晕损耗是线路损耗的主要组成部分,导线表面的粗糙程度会影响电晕。为此研究粘附在线路上的不同形状及大小的金属颗粒对导线电晕的影响,描绘出导线周围每种颗粒存在时可能引起电晕的区域,根据这些区域面积大小说明颗粒对导线电晕的影响强弱情况。研究结果表明:输电线路表面粘附金属颗粒时周围最大电场强度会明显增大。比较几种给定形状的金属颗粒发现,立方体金属颗粒对导线电晕损耗影响很大,尤其是存在特定半径的金属半球颗粒,所能引起的电晕损耗最大。
Corona loss is the major component of transmission line＇ s power loss and is affected by the wire＇ s surface roughness. The paper investigates the effect of metal particles with different shapes and sizes on the corona and describes the areas in which metal particles may cause corona. The effect of particles on the corona loss can be reflected in terms of the area＇ s sizes. The study shows that the electric field intensity around the line will increase significantly when there are metal particles adhering to the line. Comparing the particles of given shapes indicates that the cubic particle have a significant influence on the corona loss and the hemispherical metal particles of a certain radius cause the largest corona loss.
出处
《中国电力》
CSCD
北大核心
2014年第8期79-82,共4页
Electric Power
基金
国家自然科学基金项目(50577040)~~
