PV panel monitoring system for cell temperature analysis and comparison by embedded models

Abstract

[EN] In recent decades, the use of renewable energy sources and the development of related technologies have been boosted due to the energy and environmental paradigm, with photovoltaic (PV) panels being one of the most implemented and optimised to date. The behaviour of panel operation is dependent on multiple parameters such as irradiance, wind speed or operating temperature. This paper presents a monitoring system based on IoT software focused on the study of the cell temperature (CT) of PV panels, highlighting the importance of this variable in the current generation and the equipment overall performance. For this purpose, a dashboard is implemented in Grafana to visualise the evolution of the CT and the associated variables. The implemented dashboard includes embedded models for the simulation of CT, in order to compare real and simulation data. This comparison determines the most suitable model to the real dynamics and could facilitate the development of intelligent control strategies for the panel