Abstract
In this work, a novel approach has been presented to predict real-time maximum power, conversion efficiency, daily, monthly and yearly energy production of photovoltaic modules operating outdoor from dawning to evening under changing conditions of illumination and temperature. One-diode electronic circuit with five irradiance and temperature dependent model-parameters has been used to describe the photovoltaic module. Temporal monitoring of temperature and module photovoltaic metrics, during one reference day, has been used to solve the system of non-linear equations corresponding to key-points of current-voltage curve to determine real-time values of model-parameters. New analytical formulas have been proposed to reproduce variations of daytime values of model-parameters as functions of effective irradiance and module temperature for all days of the year. To evaluate accuracy of our predictive approach, meteorological and photovoltaic data recorded by NREL researchers for four PV modules coming from different technologies, which were operating outdoor at Cocoa (Florida) and Eugene (Oregon) during one year have been used. Predicted values of current-voltage characteristics, maximum power and efficiency at arbitrary times in arbitrary days have been compared to respective experimental values. NRMSE and NE have also been calculated to find that these normalized indicators have not exceeded 3%.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.