基于测风塔和WT数值模拟的贵州山地风能资源评估——以册亨县为例

Evaluation of Wind Energy Resources in Mountainous Areas of Guizhou Province Based on Wind Tower and WT Numerical Simulation——Taking Ceheng County as an example

【目的】精细化评估贵州复杂山地地形下的风能资源分布,对贵州风能资源开发利用具有重要的指导意义。【方法】利用贵州册亨县境内5座测风塔2020年11月—2021年9月观测资料及其周边气象站数据,采用基于计算流体力学模型的Meteodyn WT软件,对整个册亨县境内山地风能资源进行模拟分析评估。【结果】册亨县风资源较好的区域主要分布在中部的秧坝镇、者楼镇、丫他镇以及北部的坡妹镇和冗渡镇的较高山脊处,具备一定开发利用价值;受册亨独特的地理位置和地形地势以及季风的多重影响,册亨县风能资源有较明显的月变化特征,11月—次年5月风资源较好。【结论】基于测风塔和WT数值模拟的风能资源评估方法模拟误差较小,适用于贵州山地复杂地形下的风能资源评估。

Evaluating the distribution of wind energy resources in complex mountainous terrain in Guizhou is of great significance for the development and utilization of wind energy resources there.Based on the observation data of five wind towers in Ceheng County of Guizhou Province from November 2020 to September 2021 and the data of surrounding meteorological stations,this paper adopts the Meteodyn WT software,which is on the basis of the computational fluid dynamics model,to simulate,analyze and evaluate the wind energy resources in the whole mountain area of Ceheng County.The results show that the areas with better wind resources in Ceheng County are mainly distributed in Yangba Town,Zhelou Town and Yata Town in the middle part of the county as well as the higher mountain ridges of Pomei Town and Rongdu Town,which are located in the north of the county.These wind resources have certain values of development and utilization.Affected by the unique geographical location,terrain and monsoon,the wind energy resources in Ceheng County have monthly variation characteristics obviously,and the wind resources are ideal from November to May of the next year.The simulation error of wind energy resource assessment method based on wind tower data and WT numerical simulation is small,so this method is suitable for wind energy resource assessment under complex terrain in Guizhou mountainous areas.