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Application of Solar Concentrators for Increasing of Solar Power Generation

The article substantiates the need to protect the surface of solar modules from overheating, since with an increase in their temperature, the generation of electrical energy decreases, and with prolonged exposure to high temperatures, for example, when operating in hot climates, it can lead to a rapid failure of installations due to their degradation. It is proposed to use a holographic film to protect solar modules from overheating, the internal structure of which is made in the form of prismatic concentrators of solar rays – prismacons. Such a holographic pattern of the film increases the concentration of sunlight in the visible part of the spectrum, thereby increasing the efficiency of the modules. The main geometrical parameters of prismacons were calculated, the optimal angle of internal reflection and concentration coefficients were determined. With the help of the MATLAB software package, the simulation of generation by solar modules using the proposed protective film was carried out, which confirmed the calculations and showed the feasibility of using holographic thermal protection at both individual and industrial solar energy facilities.