Dynamic coupled electrical and thermal model for PV-T solar energy collectors

This paper proposes a nonlinear state space model of a hybrid Photo-Voltaic /Thermal (glazed and unglazed PV/T) system taking into account the coupling of the electrical and the hydraulic circuits. A real time behavioral model is presented as Variable Structure Automatic System (VSAS), for simulation analysis and PV/T design optimization. The proposed model is appropriate for prediction, monitoring, control and can be used for diagnosis and the system Remaining Useful Life span increase. The analysis of the energy balance of the PVT system in its environment, leads to propose a new Maximum Life Span Power Point (MLSPP) to be used instead of the simple MPP to increase the life cycle of the PVT system.