Influence of supplementary installed optical structures on VA characteristics of photovoltaic modules

Milan Belik(1), Olena Rubanenko(1,2,3,4), Iryna Hunko(2,3)

1. Department of Electrical Power Engineering. University of West Bohemia. Univerzitni 8, 30614 Plzen (Czech republic)

2. Institute of Renewable Energy, 50, Metrological St., Kyiv region, c. Kyiv, 03143, Ukraine,

3. Research and Innovation Centre for Electrical Engineering, University of West Bohemia. Univerzitni 8, 30614 Plzen (Czech Republic)

4 Department of electric station and system, Vinnytsia National Technical University. 95 Khmelnytske shose, 21021, Vinnytsia, Ukraine

2025-07-25

This paper focuses on optimisation of energy gains for various types of supplementary installed optical structures on photovoltaic modules.

The project is based on real measurements using modified Flash Tester Unit and theoretical calculations based on modified equations describing the intensity of incident rays. A standard flash tester unit was modified to enable measurements using various spectrum, incident angle and variable composition between direct and ambient intensity while the homogeneity and precision was preserved. In similar way, the conventional equations used for calculations of incident rays on surface of photovoltaic module were modified to describe the angle and surface of optical structures supplementary installed on photovoltaic modules.

Various parameters are used for trimming of the optimisation process. Influence of the optical structure can have either positive impact on produced energy or negative impact while negative or positive impact on light pollution in the surrounding urbanized or populated areas. The main goal is to improve and verify photovoltaic system in real conditions with real light pollution effect defined by the model buildings with integrated renewable energy sources. The system can be later used in general installations on commercial or residential buildings.

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