基于GIS+Fluent的复杂山体柔性光伏工程风速修正系数研究  

Study on the Wind Speed Correction Coefficient of Flexible Photovoltaic Projects in Complex Mountainous Areas Based on GIS+Fluent

作　　者：肖斌[1] 徐翔 田永进 贾九名 黄莺[3] 陈昌宏[4] Xiao Bin;Xu Xiang;Tian Yongjin;Jia Jiuming;Huang Ying;Chen Changhong(Northwest Engineering Corporation Limited,Power China,Xi'an 710065,China;Northwest Water Resources and Hydropower Engineering Co.,Ltd.,Xi'an 710100,China;School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;School of Mechanics,Civil Engineering and Architecture,Northwestern Polytechnical University,Xi'an 710129,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065 [2]西北水利水电工程有限责任公司,西安710100 [3]西安建筑科技大学土木工程学院,西安710055 [4]西北工业大学力学与土木建筑学院,西安710129

出　　处：《西北水电》2025年第1期108-116,共9页Northwest Hydropower

基　　金：陕西省自然科学基金(2023-JC-YB-333)。

摘　　要：随着光伏产业的迅猛发展,土地资源紧张问题愈发凸显,使得光伏产业“上山下海”成为大势所趋。大跨度光伏支架具有先天优势来适应复杂地形,但复杂山地与单个山体具有完全不同的风场特性,复杂地形的近地层风场分布具有高度的非均匀性,观测数据所能代表的范围非常有限,由此利用数值风洞模拟方法获得复杂地形条件下高分辨率的近地层风场分布尤为重要。为了获得复杂山体柔性光伏高分辨率的近地层风场分布规律,基于GIS地理信息系统和Fluent数值分析软件,以陕西白水县实际柔性光伏支架项目场地为例,分析研究了复杂山地地形在不同风工况下8个风向角、11个关键位置的风场分布特征及风速修正系数。结果表明:风向角为ES135°和NW315°工况最为严重,最大值为1.45;当风向角与峡谷方向一致时容易产生峡谷增速效应,光伏场地不同位置风速修正系数表现出明显不同,变化范围0.34~1.45。研究成果可为山体柔性光伏工程项目风速取值提供参考。With the rapid development of the photovoltaic industry,the shortage of land resources has become more and more prominent,making it an inevitable trend for the photovoltaic industry to"move to mountains and seas".The large-span photovoltaic support has inherent advantages in adapting to complex terrains.However,complex mountainous areas have completely different wind field characteristics from those of a single mountain.The distribution of the near-surface wind field in complex terrains is highly non-uniform,and the range represented by the observation data is very limited.Therefore,it is particularly important to use the numerical wind tunnel simulation method to obtain the high-resolution distribution of the near-surface wind field under complex terrain conditions.In order to obtain the distribution law of the high-resolution near-surface wind field of flexible photovoltaics in complex mountainous areas,based on the GIS(Geographic Information System)and the FLUENT numerical analysis software,taking the site of an actual flexible photovoltaic support project in Baishui County,Shaanxi Province as an example,this paper analyzes and studies the distribution characteristics of the wind field and the wind speed correction coefficients at 11 key positions under 8 different wind direction angles in different wind conditions in complex mountainous terrains.The results show that the wind conditions with the wind direction angles of ES135°and NW315°are the most severe,with the maximum value of 1.45.When the wind direction angle is consistent with the direction of the valley,the valley acceleration effect is likely to occur.The wind speed correction coefficients at different positions of the photovoltaic site are significantly different,ranging from 0.34 to 1.45.The research results can provide a reference for the determination of the wind speed values in flexible photovoltaic projects in mountainous areas.

关 键 词：地理信息系统GIS 实际复杂山体地形 数值风洞分析 FLUENT 

分 类 号：TK519[动力工程及工程热物理—热能工程]