摘要
研究高压输电导线周围电场分布的影响因素。使用Ansoft Maxwell 3D有限元分析软件,建立了220 kV交流输电导线的三维模型。基于此模型分别探究了洁净条件下,以及导线表面附着水珠或不同介电常数的固体污秽颗粒时导线周围电场分布的规律。研究结果表明:洁净条件下,高压输电导线周围的电场分布不满足电晕放电的条件,具有较好的电磁环境;导线表面附着水珠或固体污秽颗粒时,导线周围的电场分布不均匀,且水珠或固体污秽颗粒的半径越小,相对介电常数越大,导线周围的电场强度也越大。
Influence factor on the electric field distribution around high voltage AC transmission line are studied. The Ansoft Maxwell 3D finite element analysis software is used to build the 3D model of 220 kV AC transmission line. Based on the model, the electric field distribution patterns around the conductors under conditions of clean, water drops or solid contamination particles with different dielectric constant sticking on the surface of conductors are studied. Study results show that under clean condition the electric field distribution around high voltage AC transmission conductor does not satisfy the corona discharge condition which has better electromagnetic environment; under conditions of water drops or solid contamination particles sticking on the surface of conductors, the electric field distribution around the conductors is not even, and the smaller the radius of water drops or solid contamination particles,the bigger the relative dielectric constant and the greater the electric field density around the conductors.
出处
《广西电力》
2017年第5期45-48,共4页
Guangxi Electric Power
基金
广西高等教育本科教学改革项目(2016JGB104)
关键词
高压交流输电导线
有限元分析
电场分布
影响因素
high voltage AC transmission line
finite element
electric field distribution
influence factor
