大型地面光伏电站中光伏方阵容量的优化设计

随着光伏组件光电转换效率的提高,以及逆变器单机功率的增大,大型地面光伏电站中光伏方阵容量也从1 MW、1.6 MW、2.5 MW逐渐增大到3.125 MW。以新疆维吾尔自治区吐鲁番地区的气候条件为例,对在该地区建设的大型地面光伏电站中光伏方阵容量分别选择3.125 MW和6.25 MW时的经济性及可行性进行了分析。结果显示:光伏方阵容量为6.25 MW时,其单瓦造价与光伏方阵容量为3.125 MW时的单瓦造价基本持平,因此在该地区选择6.25 MW光伏方阵容量的优势不明显。

OPTIMIZED DESIGN OF PV ARRAY CAPACITY IN LARGE-SCALE GROUND PV POWER STATION

With the improvement of the conversion efficiency of PV module and the increase of the single inverter power,the PV array capacity of large scale ground PV power station has gradually increased from 1 MW,1.6 MW,and 2.5 MW to 3.125 MW.This article is based on Turpan City,Xinjiang Uygur Autonomous Region,taking the climatic conditions in this area as an example,the economics and feasibility of choosing 3.125 MW and 6.25 MW for the PV arrays capacity in the large scale ground PV power station are analyzed.The results show that when the PV array capacity is 6.25 MW,the cost per watt is basically the same as that of the PV array capacity is 3.125 MW,and the advantage of choosing 6.25 MW PV array capacity in this area is not obvious.