高压电器2024，Vol.60Issue(5)：147-155,170,10.DOI:10.13296/j.1001-1609.hva.2024.05.019
基于带电颗粒动态积污的绝缘子电场分布研究
Research on Electric Field Distribution of Insulators Based on Dynamic Pollution Accumulation of Charged Particles
摘要
Abstract
For studying the influence of charged pollution particles on the surface pollution and electric field distri-bution of insulators as well as the corona discharge phenomenon in the air domain,the FXBW-35/70 insulator is tak-en as the study object,the coupling wind tunnel model of AC-DC,turbulence,charged particle interaction and parti-cle motion is constructed by using the multi-physics coupling finite element software Comsol Multiphysics,and the distribution of corona discharge by charged particles on the surface of insulators,electric field and air domain is stud-ied.The result shows that the higher the wind speed,the faster the pollution accumulation speed in the windward area compared to other areas,the larger the particle size,the more severe the pollution in the windward area,the less pollu-tion in the leeward area,and the little change in the crosswind area.The surface potential and electric field distortion of the shed in the windward area are the most severe during pollution,followed by the leeward area.After pollution,the surface potential and electric field of the shed have eased,and the windward area is more severe than the leeward area.During the pollution,there is a risk of corona discharge in the air around a large and small shed near the high-voltage and low-voltage ends,and the first large shed near the high-voltage and low-voltage ends will experience coro-na discharge.After the pollution,there is a risk of corona discharge within 1mm at the root of large shed of low voltage side,and also round the whole large shed of the high voltage side as well as the root of the small shed.关键词
绝缘子/带电颗粒/Comsol Multiphysics/电场分布/电晕放电Key words
insulator/charged particles/Comsol Multiphysics/electric field distribution/corona discharge引用本文复制引用
李成学,吕邦欢..基于带电颗粒动态积污的绝缘子电场分布研究[J].高压电器,2024,60(5):147-155,170,10.基金项目
国家自然科学基金资助项目(52167019,51867012) （52167019,51867012）
网甘肃省电力科学研究院科技项目(52272219000Q). Project Supported by National Natural Science Foundation of China(52167019,51867012),Science and Technology Project of State Grid Gansu Electric Power Research Institute(52272219000Q). （52272219000Q）
