Modelling simple photovoltaic systems with thermal phenomena taken into account

The paper refers to modelling characteristics of a simple photovoltaic system with thermal phenomena taken into account. This system consists of a photovoltaic panel, battery and two switched-mode voltage regulators. The electrothermal models of all the components of such systems are presented. These models are dedicated to electrothermal dc and transient analyses. The correctness of the models of all components of the photovoltaic systems is verified experimentally. Finally, the results of measurements and calculations of characteristics of the considered system are compared and discussed for different operating modes.