基于超级计算的大规模跟踪式光伏发电阵列风压分布研究  

RESEARCH ON WIND PRESSURE DISTRIBUTION OF LARGE-SCALE TRACKING PHOTOVOLTAIC POWER GENERATION ARRAY BASED ON SUPERCOMPUTING

作　　者：李正农[1,2] 胡存云 吴红华[1] 王士涛 特日根 栾雪涛 Li Zhengnong;Hu Cunyun;Wu Honghua;Wang Shitao;Te Rigen;Luan Xuetao(College of Civil Engineering,Hunan University,Changsha 410082,China;Key Laboratory of Building Safety and Efficiency of the Ministry of Education,Hunan University,Changsha 410082,China;Arctech Solar Technology Limited Holdings,Kunshan 215331,China)

机构地区：[1]湖南大学土木工程学院,长沙410082 [2]湖南大学建筑安全与节能教育部重点试验室,长沙410082 [3]江苏中信博新能源科技股份有限公司,昆山215331

出　　处：《太阳能学报》2023年第6期242-251,共10页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(52178476)。

摘　　要：首先对与跟踪式光伏组件结构相似的单个定日镜进行风洞测压试验和CFD数值模拟,然后将两种方法获得的结果进行对比,验证了该文所采用的CFD数值方法的可靠性。其次建立3种不同长宽比的跟踪式单体光伏组件模型,研究单体光伏组件在0°风向角下长宽比对其平均风压分布的影响。最后建立大规模太阳能跟踪器光伏阵列模型,对5种具有代表性意义的工况(来流风向角:0°、45°、90°、135°、180°)进行模拟研究,得到B类地貌风场条件下光伏组件群代表位置处光伏组件的平均风压系数分布规律。研究结果表明:来流风向角不同,光伏组件群中不同位置的光伏组件风压分布有所区别;45°和135°斜风向角下光伏组件所受平均风压最大,即45°和135°为最不利风向角;光伏组件群四周位置为组件群最不利受力位置。Firstly,the wind tunnel pressure test and CFD numerical simulation of the single heliostat with similar structure to the tracking photovoltaic module are carried out,and then the results obtained by the two methods are compared to verify the reliability of the CFD numerical method.Secondly,three tracking photovoltaic module models with different aspect ratios are established to study the influence of aspect ratio on the mean wind pressure distribution of single PV module at 0°wind angle.Finally,the photovoltaic array model of large-scale solar tracker is established,and five representative working conditions(incoming wind direction angle:0°,45°,90°,135°,180°)are simulated to obtain the distribution law of mean wind pressure coefficient of photovoltaic modules at the representative position of photovoltaic module group under the condition of class B landform wind field.The results show that the wind pressure distribution of PV modules at different positions in the PV module group is different with the different incoming wind direction angle.The mean wind pressure on PV modules is the largest at 45°and 135°oblique wind angles,that is,45°and 135°are the most unfavorable wind angles.The position around the photovoltaic module group is the most unfavorable stress position of the module group.

关 键 词：光伏组件 超级计算机 平均风压系数 最不利风向角 数值模拟 

分 类 号：TU312.1[建筑科学—结构工程]