干旱区地理2025，Vol.48Issue(3)：421-433,13.DOI:10.12118/j.issn.1000-6060.2024.289
内蒙古中部地区风电场风速特性及尾流效应计算
Wind speed characteristics and wake effect calculation of the wind farm in the central region of Inner Mongolia
摘要
Abstract
To investigate the characteristics of wind farm wake effects and their relationship with meteorological conditions,33 wind turbines from a wind farm in central Inner Mongolia,China were selected for analysis.Wind resource assessment parameters,including average wind speed,wind direction,and wind frequency distribution,were statistically analyzed from 2021 to 2023.Using the Jensen wake model,wind speeds in the wake area were calculated for different wind directions,with a focus on the refined dominant wind direction.The correlation be-tween wind speeds and meteorological factors,accounting for wake effects,was also explored.The findings are as follows:(1)From 2021 to 2023,the wind farm in central Inner Mongolia was predominantly influenced by southwest winds.High-frequency wind directions shifted from west to south throughout the year.Monthly wind directions were relatively stable,with concentrated wind directions and small wind speed variations.The average wind speed was highest under the dominant wind direction,and the wind speed frequency curve exhibited a posi-tively skewed distribution.(2)Under average wind speeds for each direction,turbines most affected by the wake experienced wind speed losses exceeding 10%.More than half of the turbines were affected by wake effects un-der northwest and southeast winds,with the most significant losses occurring in the northeasterly downstream po-sitions of the wind farm.Wind speed reductions were particularly pronounced under westerly winds.(3)The im-pact of barometric pressure,air temperature,and humidity on daily wind speed variation differed across wind di-rections.For southwest winds,the wake model performed best in the 4-5 m·s-1 wind speed range,with the aver-age absolute percentage error of wind speed negatively correlated with relative humidity.For northwest winds in the 9-10 m·s-1 range,the wake model calculations closely matched measured wind speeds,with errors positively correlated with barometric pressure and temperature.In addition,the wake model performed well in the 9-10 m·s-1 and 7-8 m·s-1 ranges for southeast and northeast winds,respectively.These results provide valuable insights into the analysis of wind turbine wake effects and wind speed predictions for wind farms.关键词
风电场/风速/风向/尾流效应/气象因子Key words
wind farm/wind speed/wind direction/wake effect/meteorological factor引用本文复制引用
贾晓红,石岚,郝玉珠..内蒙古中部地区风电场风速特性及尾流效应计算[J].干旱区地理,2025,48(3):421-433,13.基金项目
内蒙古自治区自然科学基金项目(2022MS04019) （2022MS04019）
内蒙古自治区"揭榜挂帅"项目(2024JBGS0054)资助 （2024JBGS0054）
