Open AccessSOLAR RADIATION MODEL FOR DEVELOPMENT AND CONTROL OF SOLAR ENERGY SOURCES / SAULĖS SPINDULIAVIMO MODELIS FOTOVOLTINIŲ ELEKTRINIŲ PROJEKTAVIMUI IR VALDYMUI
Author(s) -
Dominykas Vasarevičius,
Modestas Pikutis
Publication year - 2016
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2016.932
Subject(s) - pyranometer , photovoltaic system , solar energy , component (thermodynamics) , computer science , radiation , aerospace engineering , physics , environmental science , meteorology , systems engineering , electrical engineering , engineering , optics , thermodynamics
The model of solar radiation, which takes into account direct, diffused and reflected components of solar energy, has been presented. Model is associated with geographical coordinates and local time of every day of the year. It is shown that using analytic equations for modelling the direct component, it is possible to adopt it for embedded systems with low computational power and use in solar tracking applications. Reflected and diffused components are especially useful in determining the performance of photovoltaic modules in certain location and surroundings. The statistical method for cloud layer simulation based on local meteorological data is offered. The presented method can’t be used for prediction of weather conditions but it provides patterns of solar radiation in time comparable to those measured with pyranometer. Cloud layer simulation together with total solar radiation model is a useful tool for development and analysis of maximum power point tracking controllers for PV modules