Aiming at addressing the difficulty of direct measurement of solar spectrum affecting the power generation per-formance of photovoltaic modules,this paper proposes a new quantitative calculation model of simple ground solar spec-trum based on atmospheric state parameters such as temperature,relative humidity and pressure.The ground solar spec-trum in Changzhou,China obtained by direct measurement and that calculated by spectral model is compared by designing experiments.The applicability and limitations of the model calculation spectroscopy method are analyzed,and the applica-tion of the model to the accurate evaluation of the output performance of photovoltaic modules is discussed.The results show that the relative error between the measured and calculated spectra can be kept within 5％ in the visible light range of sunny weather.Cloudy weather is less suitable than sunny weather,but the relative error maintains within 20％.Differ-ent seasons have little effect on the applicability of the model,and the relative error can be controlled within 10％.
solar spectrummodelair qualitymeteorological parameterspectral prediction
维普
万方数据
