湖北电力2025，Vol.49Issue(2)：23-29,7.DOI:10.3969/j.issn.1006-3986.2025.02.003
典型微地形区域输电线路风场分布特性研究
Research on Distribution Characteristics of Transmission Line Wind Fields in Typical Area of Microtopography
摘要
Abstract
With the continuous and rapid development of the power grid,the operating environment of transmission channels is becoming increasingly complex,in which the risk of faults such as wind deflection and swinging of transmission lines in the areas of microtopography becomes more prominent.For the two typical microtopography feature areas prone to disasters,namely terrain uplift and mountain passes,this paper constructs a simulation calculation model to analyze the distribution characteristics of the wind field,obtaining the variation laws of the wind field at different positions and at different heights above the ground within the area of microtopography,including the variation trend of wind speed with terrain,the position where the maximum wind speed is formed,and the ratio of the maximum wind speed to the incoming wind speed.Finally,based on the simulation results,the paper establishes two calculation formulas for wind speed correction coefficients at different positions in typical area of micro topography.The research results can be used in practical applications to calculate the actual wind speed values at the locations of line towers and conductors in the areas of microtopography based on observational data,thus providing theoretical support for the wind-resistant design of transmission lines and the risk prediction for strong wind disaster,which is conducive to improving the defense level of strong wind disasters on transmission lines.关键词
微地形/风速/风场分布特性/输电线路/风洞试验Key words
area of microtopography/wind speed/wind field distribution characteristics/transmission lines/wind tunnel test分类
信息技术与安全科学引用本文复制引用
BAI Bingjie,ZHANG Bo,ZHOU Linfan,ZHANG Chi,HAN Dong,LIN Qing..典型微地形区域输电线路风场分布特性研究[J].湖北电力,2025,49(2):23-29,7.基金项目
国家电网有限公司总部科技项目(项目编号:5200-202319382A-2-3-XG). （项目编号:5200-202319382A-2-3-XG）
