Taking the actual micro-terrain area where the 220 kV Zhenglan-A line at Shizuishan of the Helan Mountains,Ningxia City as the research subject.A 1:1 model is used to set up a 3D computational model for fluid mechanics analysis in this micro-terrain area,which is compared with the wind velocity data,and the model's accuracy was validated by comparing it with wind velocity data collected from meteorological stations to verify the model validity.Analysis is carried out on the influence of the micro-terrain where the Zhenglan-A line locates on the design wind velocity of the lines,and the formulas for the downstream wind velocity distribution and wind velocity correction coefficient of the micro-terrain are specified,which is regarded as the reference for determining the design velocity of newly-built transmission lines and the running of existing transmission lines in the micro-terrain area.
关键词
微地形/风速修正系数/仿真分析/风场/输电线路
Key words
micro-terrain/wind velocity correction coefficient/simulation analysis/wind farm/transmission line
万方数据