Speaker
Description
Photovoltaics (PV) is a technology that converts solar energy into electricity through photovoltaic cells, which are assembled into modules known as photovoltaic panels. Although its development began modestly, this technology has recently experienced significant growth, leading to increasing demand for this form of energy across various applications. This progress has been made possible by ongoing research in several areas: photovoltaic materials, MPPT algorithms, as well as studies focused on controlling factors that influence the performance of photovoltaic systems. Numerous studies have demonstrated that photovoltaic panels are sensitive to various internal and external factors. This study is situated within this context and focuses on the experimental analysis of the impact of different meteorological and environmental factors on the electrical performance of a photovoltaic solar sensor.
The experimental results of this study revealed contrasting effects among the different factors. Irradiance has a positive impact on the performance of photovoltaic panels, whereas temperature and shading negatively affect their efficiency. More specifically, the study highlighted that the short-circuit current (Isc) increases proportionally with irradiance, with a proportionality coefficient of approximately 0.0086. In contrast, for each one-degree Celsius increase in cell temperature, the open-circuit voltage (Voc) decreases by 0.3%, and the maximum power decreases by 0.4%. Regarding shading, it causes a 28.6% reduction in the short-circuit current when 25% of the module is shaded.
Keywords: Solar energy, Photovoltaic panel, Efficiency, Temperature, Irradiance, Shading.
