Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 8, No 3 (2016)

Solar Radiation Model for Development and Control of Solar Energy Sources

Dominykas Vasarevičius (Vilnius Gediminas Technical University, Lithuania)
Modestas Pikutis (Vilnius Gediminas Technical University, Lithuania)


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.

Article in: English

Article published: 2016-06-29

Keyword(s): solar radiation; solar energy sources; cloud layer simulation; photovoltaic (PV) modules; maximum power point tracking (MPPT).

DOI: 10.3846/mla.2016.932

Full Text: PDF pdf

Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 License.