37. саветовање CIGRE Србија (2025) СИГУРНОСТ, СТАБИЛНОСТ, ПОУЗДАНОСТ И RESILIENCE ЕЛЕКТРОЕНЕРГЕТСКОГ СИСТЕМА МУЛТИСЕКТОРСКО ПОВЕЗИВАЊЕ У ЕНЕРГЕТИЦИ И ПРИВРЕДИ – C6-04
АУТОР(И) / AUTHOR(S): Nikola Lapčević, Jovana Obradović, Teodora Milovanović, Đorđe Lazović
DOI: 10.46793/CIGRE37.C6.04
САЖЕТАК / ABSTRACT:
Climate change and the energy transition have contributed to the accelerated development of renewable energy sources, with photovoltaic (PV) systems playing a key role in this process. Over the past decades, technological advancements in the field of photovoltaic cells have focused on increasing their efficiency, improving operational characteristics, reducing degradation rates, and extending their lifespan. Today, it can be said that a high level of cell efficiency has been achieved, and further progress is mainly directed toward optimizing the operation of photovoltaic power plants. One way to improve their performance is by increasing the incident solar radiation on the active surface of the modules. This can be achieved using solar tracking systems, which allow adjustment of the tilt and/or azimuth angle of the modules relative to the current position of the sun. Unlike fixed constructions, such systems utilize mechanical structures that enable continuous optimization of the module position, thereby increasing the amount of absorbed solar energy, and, consequently the electricity generation. This paper provides an overview of the basic types of single-axis and dual-axis solar tracking photovoltaic systems. For each analyzed system, the theoretical methodology most commonly applied in practice for solar tracking is described, based on optimizing the module’s position to maximize the direct component of irradiation. In addition, a new theoretical model for solar tracking has been developed, aimed at optimizing the total radiation received by the photovoltaic module. The evaluation of this model relies on data regarding the direct and diffuse horizontal components of irradiation, which can be measured using a pyrheliometer and a shadow ring pyranometer. The performance of the developed model for a selected location in Serbia has been compared with the conventional model of solar tracking, with a particular emphasis on the achieved benefits in electricity generation during cloudy and clear days.
КЉУЧНЕ РЕЧИ / KEYWORDS:
renewable energy sources, photovoltaic systems, solar tracking, optimization, efficiency
ПРОЈЕКАТ / ACKNOWLEDGEMENT:
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