Estimating solar irradiance components from plane of array irradiance and global horizontal irradiance

摘要

A computer implemented method of estimating at least one solar irradiance component, the method comprising: obtaining a sensor measurement from an instrument to provide a measured global horizontal irradiance (GHI_measured), wherein the measured global horizontal irradiance (GHI_measured) consists of at least an estimated diffuse horizontal irradiance (DHI_estimated) and an estimated direct normal irradiance (DNI_estimated); providing at least one modeled component, wherein at least one of the modeled components is a modeled global horizontal irradiance based on an atmospheric model (GHI _model); calculating an irradiance estimate modifier (IMOD) in a computing device according to the measured global horizontal irradiance (GHI_measured) and the modeled global horizontal irradiance (GHI _model); and providing at least one estimated solar irradiance component by a computing device according to the irradiance estimate modifier (IMOD) and at least one modeled component.