雾霾对接触网绝缘子电位和电场分布的影响

摘要

In order to study the effect of haze environment on the surface potential and electric field distribution of the insulator, a two-dimensional simulation model of the composite insulator was established based on the electrostatic field finite element method. The finite element software Comsol was used to analyze the potential and electric field distribution of the insulator with respect to different haze concentrations. The simulation results show that the suspended haze particles in the air will distort the surface potential and electric field of the insulator slightly when it is not charged. However, when the haze particles near the insulator are charged, they will exert significant influence on the corresponding potential and electric field distribution. The different concentration of the haze particles and the different charge polarity will have different effects on the surface potential and the amplitude of the electric field distortion.%为研究雾霾环境对绝缘子沿面电位和电场分布的影响,基于静电场有限元法建立接触网复合绝缘子的二维仿真模型,依靠有限元软件Comsol计算分析绝缘子在不同雾霾浓度环境下的电位和电场分布.研究结果表明:空气中悬浮的雾霾颗粒在不带电时会小幅畸变绝缘子沿面电位和电场;当绝缘子附近的雾霾颗粒荷电后,会对绝缘子沿面电位和电场产生明显的影响,不同的雾霾颗粒的浓度,不同的带电极性也会对绝缘子沿面电位和电场畸变幅度产生不同的效果.