光伏阵列表面风荷载数值研究  

NUMERICAL RESEARCH ON SURFACE WIND LOAD OF PV ARRAY

作　　者：阮辉[1] 廖伟丽[1] 王康生[1] 赵亚萍[1] 

机构地区：[1]西安理工大学水利水电学院,西安710048

出　　处：《太阳能学报》2015年第4期871-877,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51179152)

摘　　要：针对标准德州理工大学（TTU）建筑模型，对该文采用的数值模拟方法的可行性进行验证，数值模拟结果与实验数据拟合较好。对4．2m安装间距的5块光伏阵列进行数值模拟研究，根据《建筑结构荷载规范》总结出不同风向角的计算工况下各电池板分块区域体型系数峰值，结果显示：危险点出现在电池板下表面分块区域A2和F2，最大荷载体型系数是规范给定荷载推荐值的几倍；在不同风向角下，电池板1表面大部分分块区域净荷载体型系数大于规范值，而电池板2一电池板5表面的净荷载体型系数仅在区域2处远大于规范值。最后考虑有无遮挡情况下，选取3种安装间距的5块光伏阵列进行数值模拟分析。结果表明，电池板安装间距可在整体上改变电池板上下表面风荷载分布情况。According to the standard T-FU building model, the feasibility of the numerical simulation method was verified, the numerical simulation results fitted well with the experiment data. Then, numerical simulation study on the 5 PV array with 4.2 m installed spacing was achieved, and peak values about mean wind pressure coefficients of block region under all computed conditions based on ＂Load code for the design of building structures＂ were obtained . The results showed that the dangerous point appear in the under surface of the PV module area A2 and F2, the maximum load shape coefficient is several times of the recommended values in loadcode; with different wind angles, net load shape coefficient of most of the sub-block areas of the solar PV module 1 is larger than the standard values, but only area 2 of PV module 2 to 5 are larger than standard values. Finally, considering whether blocked or not, 5 PV arrays with three kinds of installed spacing were selected for numerical simulation analysis. The results indicate that the installed spacing completely change the wind load distribution of upper and under surface of the PV array.

关 键 词：电池板阵列 荷载体型系数 危险点 安装间距 

分 类 号：TK511[动力工程及工程热物理—热能工程]