光伏发电项目太阳能辐射量数据对比与选用

Comparison and Selection of Solar Radiation Data for Photovoltaic Power Generation Projects

光伏发电项目中太阳能资源数据主要来源于卫星遥感观测数据、气候学推测数据和太阳能气象观测站监测的数据,辐射量数据的选取将直接影响光伏发电量。以2012年6月~2015年12月北京地区光伏并网系统的太阳能辐射量的实测数据为例,分析现有数据库辐射量数据与实际辐射量的误差,提出在进行光伏发电项目可研和设计时,对太阳能辐射量选取应作适当修正和调整,并建议将辐射量参考数据减少10%~20%。

Data of solar energy resources in photovoltaic power generation projects is mainly from satellite remote sensing observation,climatology tentative data and data measured in solar energy meteorological station. The selection of radiation data is directly related to photovoltaic power generation.The article adopts the measured data of solar radiation in photovoltaic grid-connected system in Beijing from June 2012 to December 2015 to analyze the difference between radiation data in the current database and actual radiation data. It proposes that the selection of solar radiation should be corrected and adjusted appropriately during the research and design of photovoltaic power generation projects,and suggests a cut-down of 10 %~20 % in reference radiation.