影响太阳能光伏电站系统效率的主要因素分析

Analysis of Main Factors Affecting the Efficiency of Solar Photovoltaic Power Plant System

光伏发电系统常见应用形式主要为三种:大型地面光伏电站、分布式光伏发电系统、家用光伏发电系统。不论是哪种应用形式,衡量光伏发电系统性能优劣的最终指标就是发电量。而影响系统发电量的因素可以归结为三个方面,第一个是电站的装机容量,第二个是当地光照资源(峰值小时数),第三个是系统效率(即PR值)。当电站的地点和规模确定以后,前两个因素基本已经定了,要想提高发电量,只能从"系统效率"上下功夫。

The common application forms of photovoltaic power generation systems are mainly three types:large-scale ground photovoltaic power plants,distributed photovoltaic power generation systems,and home photovoltaic power generation systems.Regardless of the application form,the ultimate indicator of the performance of a photovoltaic system is the amount of electricity generated.The factors affecting the system's power generation can be summarized into three aspects,the first is the installed capacity of the power station,the second is the local light resources(peak hours),and the third is the system efficiency(the PR value).When the location and scale of the power station are determined,the first two factors have basically been fixed.To increase the power generation,we can only work hard from the“system efficiency”.