可再生能源2025，Vol.43Issue(11)：1450-1457,8.
光伏电站阴影下输出特性及功率优化器效能提升研究
Performance enhancement of power optimizers and output characteristics of photovoltaic power plants under shading effects
摘要
Abstract
In practical applications,photovoltaic(PV)modules often experience partial shading due to obstructions such as chimneys,trees,or bird droppings,leading to power mismatch losses in the system.To minimize the impact of shading and further enhance the power generation capacity of PV systems,this paper first derives the output characteristics of PV power stations under shaded conditions and establishes a model for improving string performance based on power optimizers.Subsequently,based on the known proportion of shading on the module surface,an experimental platform was built to analyze the deviation between measured and simulated results using three experimental schemes and to compare the power generation of the strings before and after incorporating power optimizers.Data show that the deviation in daily power generation between measured and simulated results is within 4%,and power optimizers can increase power generation by up to 16.14%.The research findings provide important guidance for enhancing the power generation capacity of PV systems under shading conditions in practical scenarios.关键词
光伏电站/遮挡影响/输出特性/功率优化器/效能提升Key words
photovoltaic power station/shading effects/output characteristics/power optimizer/efficiency improvement分类
能源与动力引用本文复制引用
邸亮,董杰,周振宇,闫馨月,白建波..光伏电站阴影下输出特性及功率优化器效能提升研究[J].可再生能源,2025,43(11):1450-1457,8.基金项目
国家重点研发计划(2022YFB4201000). （2022YFB4201000）
