Scientific and Technical Journal

ELECTROTECHNIC AND COMPUTER SYSTEMS

ISSN Print 2221-3937
ISSN Online 2221-3805
MODELLING OF ELECTRIC CHARACTERISTICS OF THE SOLAR PANEL
Abstract:
The most effective use of photovoltaic cells will be if the transmit power at the change in ambient conditions will be maximal. Mathematical modeling of solar banks allows us to determine the nature of these changes and to obtain such characteristics. Solar panel simulation in Matlab / Simulink environment was performed. The adequacy of the developed model is proved. This is done by comparing the results of modeling with the declared technical characteristics of the plant manufacturer. The deviation of the calculated electrical characteristics does not exceed 1%. The characteristics of the solar battery corre-spond to the available real data. The possibility of constructing the volt-ampere characteristics of solar cells is provided. An analysis of the influence of temperature changes, changes in the load and the various influ-ence of solar radiation on the model of the solar panel with a power of 270 kW is carried out. When the re-sistance is increased, the current decreases by no more than 10%, and the voltage increases with no more than 5%. The stability of the current dependence on the illumination when changing the illumination at dif-ferent temperatures is revealed. The temperature range studied was -20 ° C to 25 ° C. The accuracy of the model, taking into account the error of measuring the input data modeling does not exceed 10%.
Authors:
Keywords
DOI
http://dx.doi.org/ 10.15276/eltecs.26.102.2017.3
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2018-07-21 16:09:39

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