风沙流对高压绝缘子电位和电场分布的影响

计算物理 ›› 2016, Vol. 33 ›› Issue (5): 539-546.

风沙流对高压绝缘子电位和电场分布的影响

唐秋明, 高强

苏州大学机电工程学院, 苏州 215021

收稿日期:2015-12-16 修回日期:2015-12-26 出版日期:2016-09-25 发布日期:2016-09-25
通讯作者: 高强,E-mail:gaoqiang@suda.edu.cn
作者简介:唐秋明(1991-),男,硕士,从事环境流体力学数值模拟研究,E-mail:291486007@qq.com
基金资助:
国家自然科学基金（41371034）和国家林业公益性行业科研专项重大项目（201404306）资助

Influence of Wind Sand Flow on Potential and Electric Field Distributions Along High Voltage Insulators

TANG Qiuming, GAO Qiang

School of Mechanical and Electric Engineering, Soochow University, Suzhou 215021, China

Received:2015-12-16 Revised:2015-12-26 Online:2016-09-25 Published:2016-09-25

摘要/Abstract

摘要： 研究风沙流对高压绝缘子电位和电场分布的影响，基于有限体积法建立绝缘子风沙气固两相流模型和风沙天气下绝缘子的风-沙-电耦合场模型，计算不同风沙天气下绝缘子表面沙尘的空间分布和沉积及其对绝缘子沿面电位和电场的影响，结果表明：风沙天气下绝缘子沿面电位和电场畸变受风速和粒径影响显著，电位的畸变幅度随风速和粒径的增加而升高，电场的畸变幅度随风速和粒径的增大而减少；风沙天气下绝缘子表面不同的沙尘空间分布和沉积导致绝缘子不同位置沿面电位和电场畸变不同.

关键词: 风沙流, 绝缘子, 静电场, 有限体积法, 闪络

Abstract: Wind sand flows affect surface electric field and potential on insulators. We established a gas-solid flow model for insulator surrounded by sand and a sand-electricity coupling model made up of high voltage insulator based on finite volume method (FVM). Spatial distribution and deposition of sand on surface of insulator and electric field distribution along insulator under different wind sand flow are calculated. It shows that surface potential and electric field distortion are influenced obviously by wind speed and particle size. Distortion of electric potential increases with increase of wind speed and particle size, while distortion of electric field decreases with increase of wind speed and particle size. Different spatial distribution and deposition of sand make different distortion on potential and electric field along insulator.

Key words: wind sand flow, insulator, electrostatic field, FVM, flashover

中图分类号:

X169
TM852

唐秋明, 高强. 风沙流对高压绝缘子电位和电场分布的影响[J]. 计算物理, 2016, 33(5): 539-546.

TANG Qiuming, GAO Qiang. Influence of Wind Sand Flow on Potential and Electric Field Distributions Along High Voltage Insulators[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2016, 33(5): 539-546.

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