新源县复杂地形下风电场的风场结构特征分析OACSTPCD

Based on the observation data of meteorological stations and anemometer tower around the wind farm in Xinyuan county,combining the ERA5-Land reanalysis and the numerical simulation results,the structural characteristics of the wind filed in wind farm of Xinyuan county were analyzed.The results showed that:(1)The hourly wind speeds of 10 m height of the weather stations around the wind farm were lower in the morning and evening,and higher at noon,and the wind directions were mainly east and south wind.However,the wind directions of the wind anemometer towers were mainly south and north wind,and the south wind gradually turned into southwest wind with the increase of height.(2)There were obvious differences between ERA5-Land reanalysis and observation data,and ERA5-Land reanalysis could not well reproduce the wind field changes in the study area.(3)The numerical simulation results of the wind field from July 23 to 24,2022 could well reproduce the observed wind field,and the simulated wind field presented significantly valley wind characteristics during.Among them,the wind direction was mainly southeast wind at night,northeast wind during the day,and northwest wind in the evening in the study area.