50kW_p并网光伏实验电站的综合设计、搭建与运行

发布时间：2018-04-03 00:39

本文选题：光伏电站　切入点：薄膜电池　出处：《青海大学学报》2016年06期

【摘要】：为深入研究新型光伏器件的实际性能及影响光伏电站发电效率的关键性因素,设计并建成一座多种光伏设备组合交叉安装的50 k Wp并网光伏实验电站。根据电站实际运行数据,对比了不同气象条件下光伏阵列选用不同类型组件、智能优化器以及不同容量逆变器的发电状况,分析了辐射量变化对光伏电站发电量的影响。结果表明:各类型光伏组件中双面电池输出特性表现最佳,其发电量高于其他类型组件;对于无阴影遮挡的光伏发电系统,智能优化器的作用得不到有效发挥;采用较小容量逆变器可减少太阳能电池组串模块间的差异性带来的影响,增大光伏阵列总发电量;受太阳辐照度变化影响各类型光伏组件实际输出最为稳定的是多晶硅电池。多晶硅电池和双面电池在并网光伏发电系统应用中具有较大的优势。
[Abstract]:In order to deeply study the practical performance of new photovoltaic devices and the key factors affecting the efficiency of photovoltaic power generation, a 50 kWp grid-connected photovoltaic experimental power station with multiple photovoltaic equipment combined and cross-installed was designed and built.According to the actual operation data of the power station, the generation conditions of different types of components, intelligent optimizer and inverter with different capacity are compared under different meteorological conditions, and the influence of the variation of radiation on the power generation of photovoltaic power station is analyzed.The results show that the output characteristics of double-sided cells are the best in all types of photovoltaic modules, and the output capacity of the dual-sided cells is higher than that of other types of modules, and the function of intelligent optimizer is not effectively brought into play for the photovoltaic power generation system without shadow occlusion.Using a small capacity inverter can reduce the influence of the difference between the modules of solar panels and increase the total power generation of the photovoltaic array. The polycrystalline silicon cell is the most stable output of various types of photovoltaic modules affected by the solar irradiance.Polycrystalline silicon cells and double-sided cells have great advantages in grid-connected photovoltaic power generation systems.
【作者单位】：青海大学新能源光伏产业研究中心青海省清洁能源高效利用重点实验室;
【基金】：国家自然科学基金项目(51567021) 青海省应用基础研究项目(2016-ZJ-723)
【分类号】：TM615

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