EXTRAPOLATION METHOD OF SPECTRAL SOLAR IRRADIANCE MEASUREMENTS EMPLOYING MODELIZATION RESULTS
DOI:
https://doi.org/10.59627/cbens.2016.2035Keywords:
Spectral solar irradiance, SMARTS model, external quantum photovoltaic efficiencyAbstract
We present a method for extrapolating measured spectral solar irradiance data in horizontal plane with the purpose of the calculation of the current photogenerated for solar cells of monocrystalline silicon, polycrystalline silicon, and cadmium telluride. The method requires the use of the SMARTS model and satellite data base. In particular, there are the partial results of the method applied to the measurement with spectroradiometer Optronics OL756 of high quality in the 290-420 nm range, the day September 12, 2011 and the final result of applying the external quantum efficiencies of these cells. The setting between measurement and model resulted in a percentage difference less than 0.07%, very small compared with the maximum established limit of 1%. The solar spectral irradiance determined from the application of the proposed model was applied to the particular case of the calculation of photovoltaic current than can be generated with solar cells of mono- and polycrystalline silicon and cadmium telluride. Significant differences were obtained between these cells, producing the first one (of monocrystalline Si) 24.7% more current than the second (of polycrystalline Si) and 45.3% higher than the third (of CdTe).
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