基于流固耦合的单轴跟踪式光伏结构风致扭转研究  

STUDY ON WIND-INDUCED TORSION OF SINGLE-AXIS TRACKINGPHOTOVOLTAIC PANEL STRUCTURE BASED ONFLUID-SOLID COUPLING

作　　者：李正农[1] 伍世芳 Li Zhengnong;Wu Shifang(Key Laboratory of Building Safety and Enerey Efficiency of Ministry of Education,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学建筑安全与节能教育部重点实验室,长沙410082

出　　处：《太阳能学报》2024年第6期316-324,共9页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(52178476)。

摘　　要：以某跟踪式光伏发电系统为研究对象,通过编写自定义程序代码UDF对Fluent进行二次开发,建立单轴跟踪式光伏结构的二维模型,研究其在风荷载作用下的扭转振动问题。研究结果表明:风速达到某一特值后,结构出现等幅周期性振动,发生软颤振现象,而其阻尼比对抑制扭转振动有一定的作用,这同实际情况较吻合;光伏组件倾角在0°~20°范围内时,倾角越大,扭转振动的临界风速越低。Taking a tracking photovoltaic power generation system as the research object,Fluent software was developed twice by writing a custom program code UDF,and a two-dimensional model of single-axis tracking photovoltaic structure was established,and its torsional vibration under wind load was studied.The results show that when the wind speed reaches a certain special value,the photovoltaic panel has periodic vibration with equal amplitude and soft flutter phenomenon,and its damping ratio has a certain effect on suppressing torsional vibration,which is consistent with the actual situation.When the inclination angle of photovoltaic panel is in the range of 0°-20°,the larger the inclination angle,the lower the critical wind speed of torsional vibration.

关 键 词：太阳能 光伏组件 风效应 流固耦合 扭转振动 阻尼 

分 类 号：TM615[电气工程—电力系统及自动化]