FUZZY LOGIC MODELING OF SOLAR RADIATION USED IN PHOTOVOLTAICS
Journal Title: Journal of Science And Arts - Year 2009, Vol 11, Issue 2
Abstract
Knowing the amount of solar radiation on a surface is of key importance to engineers and scientists involved in the design of solar powered systems. Numerous design methods for thermal and photovoltaic systems require as an input monthly average daily radiation on a horizontal surface, in order to predict the energy production of the system on a monthly basis. In applicative studies it is a logical and coherent idea that the solar radiation is directly proportional to the sunshine duration. Usualy solar energy models have linear mathematical forms similar to scientific laws which express linear relationships between two relevant variables. However, planetary boundary layer turbulence, atmospheric turbidity and transmissivity, cloud thickness, and temporal and spatial variations cause embedding of nonlinear elements in the solar radiation phenomena. Therefore, the use of simple linear models cannot be justified except statistically without even considering about obtaining the model parameter estimations.
Authors and Affiliations
Dorin Let, Andreea Stancu
Keywords
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