漂浮式光伏电站方阵风载荷数值研究  

NUMERICAL RESEARCH ON WIND LOAD OF FLOATING SOLAR POWER PLANTS

作　　者：宋肖锋 陈作钢[1,2,3] 肖福勤 余德海[5] Song Xiaofeng;ChenZuogang;Xiao Fuqin;Yu Dehai(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Schoolof Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE),Shanghai 200240,China;SUNGROW Power Supply Co,Ltd,Hefei 230088,China;Huainan Sunshine Floating Technology Co.,Ltd.,Hefei 230088,China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]上海交通大学船舶海洋与建筑工程学院,上海200240 [3]高新船舶与深海开发装备协同创新中心(船海协创中心),上海200240 [4]阳光电源股份有限公司,合肥230088 [5]淮南阳光浮体科技有限公司,合肥230088

出　　处：《太阳能学报》2020年第10期136-143,共8页Acta Energiae Solaris Sinica

摘　　要：基于计算流体力学(computational fluid dynamics,CFD)/实验流体力学(experimental fluid dynamics,EFD)方法对漂浮式光伏电站大规模方阵的整体风载荷进行数值研究。CFD计算的数值考察验证了采用简化模型进行研究的可行性;单体模型的计算与试验对比验证了CFD方法在此类问题研究中的精度;对方阵进行实尺度建模3D简略计算,得到整体风载荷在不同风向角下的变化规律,通过对最大载荷风向北风条件下的载荷分布规律的分析,提出2.5D计算的策略,得到数值验证。根据计算结果设计18×11模块的缩尺方阵风洞试验方案,试验结果和CFD计算结果吻合良好,据此构建完整的数值计算方法。对2.5D进行高精度计算,进而提出针对3D简略计算的修正系数,得到较为准确的整体风载荷结果。Based on the Computational Fluid Dynamics(CFD)/Experimental Fluid Dynamics(EFD)method,a study on the overall wind load of large-scale floating solar power plants is conducted. The feasibility of using the simplified model for this study is verified on the basis of the CFD calculations. The accuracy of the CFD calculations for such problems is validated by comparing the calculated results with the experimental results for a single model. Brief 3 D calculations of the array are performed in actual-scale,and the variation discipline of the overall wind load at different wind directions is obtained. By analysing the load distribution under the condition of wind direction with the maximum load,the 2.5 D calculation strategy is proposed,and the numerical verification of the calculation strategy is also performed. Based on the calculated results,wind tunnel tests of an 18×11 scaled model array are designed,the experimental results are compared with the CFD calculation results which shows a good agreement. After the accuracy of the CFD calculation being proved,a complete numerical calculation method is constructed. Furthermore,to obtain precisely the overall wind load,after performing a high-precision 2.5 D calculation,a modifying coefficient for the 3 D calculation is proposed.

关 键 词：光伏电站 风载荷 CFD 风洞 2.5D计算 漂浮式 

分 类 号：TK511[动力工程及工程热物理—热能工程]