双面组件光伏电站最优容配比的研究

通过对采用双面光伏组件的光伏电站(以下简称"双面组件光伏电站")系统效率损失进行分析,发现在光伏组件-逆变器容配比(下文简称"容配比")变化的情况下,逆变器过载损失对此类光伏电站发电量的影响最大。提出了双面组件光伏电站容配比的优化方法,并以太阳能资源Ⅰ、Ⅱ、Ⅲ类地区的典型城市为例,进行了不同容配比和背景反射率下双面组件光伏电站发电量的模拟,通过分析各种情况下双面组件光伏电站的内部收益率(internal rate of return,iRR),得到了太阳能资源Ⅰ、Ⅱ、Ⅲ类地区双面组件光伏电站在不同背景反射率下典型的最优容配比。

RESEARCH ON OPTIMAL CAPACITY RATIO OF PV POWER STATION WITH BIFACIAL PV MODULES

By analyzing the system efficiency loss of PV power generation system with bifacial PV modules,it is found that the inverter overload loss has the greatest impact on the power generation of bifacial modules PV power station when the capacity ratio of PV module-inverter changes.The optimization method of the station capacity ratio of bifacial PV module is proposed.Taking the typical cities inⅠ,Ⅱ,andⅢlevel of solar energy resources areas as examples,simulations of power generation of bifacial modules PV power stations under different capacity ratios and background reflectivities were carried out.By analyzing the internal rate of return(IRR)of bifacial modules PV power stations under various conditions,the optimal capacity ratio of bifacial modules PV power stations under different background reflectivity inⅠ,Ⅱ,andⅢlevel of solar energy resources areas is obtained.