Comparison of PV Power Production Estimation Methods Under Non-homogeneous Temperature Distribution for CPVT Systems

The way to increase energy generation in a standard photovoltaic (PV) or photovoltaic/thermal (PV/T) system is the tracking of the sun and/or concentrating to increase the solar energy coming into the field. As the radiation is increased in both concentrated PV and PV/T systems, both PV power output and PV module temperature increase. The fact that the PV module temperature increases and exceeds the reasonable level reduces the life of solar cells and permanently damages the cells. The way to prevent this is to cool the PV modules. In other words, thermal energy is absorbed by integrating the thermal system. Thus, both electrical and thermal energy needs will be met easily, and a concentrating photovoltaic thermal (CPVT) system produces both electricity and thermal energy from the sun. Electrical and thermal behavior analyzes of CPVT systems are important issues in order to robust and accurate deciding for electrical and thermal power production. In a previous study, finite volume methods were applied for thermal analysis of the CPVT system. Temperature distribution of the PV modules and CPVT surfaces was done. In the numerical analysis; power/temperature coefficient-based method was used for electrical power estimation. In this chapter, power/temperature coefficient-based and five parameter models of PV modules were presented and discussed for forecasting of electrical power production. Decided to PV module temperature in power/temperature coefficient model and temperature distribution applications on diode model were discussed. Power/temperature-based power estimation methods are depending on first, medium, and end PV module temperature. However, different case studies for CPVT electrical power production forecasting methods were investigated. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.