Evaluation of Strategies to Optimize Photovoltaic Penetration in Power Networks
摘要
In the context of the growing demand for renewable energy sources, this study evaluates the impact of photovoltaic solar energy on secondary distribution networks. The Cuban policy, aimed at increasing the use of this generation source, particularly in residential and commercial applications, may lead to issues in circuits where it is connected if solar penetration is high. To mitigate this effect, different strategies can be implemented to enable greater integration. This work compares three control methods: Fixed Voltage, Perturbation and Observation, and Incremental Conductance. The results indicate that the Fixed Voltage method is the most efficient, achieving a maximum generation of 17.8 kWh/day and a voltage variation of ±1.5%, keeping the parameters within acceptable limits. While the Perturbation and Observation method shows lower levels of generation and significant variations in current, the Incremental Conductance method, although efficient, presents greater voltage variation. It is concluded that the Fixed Voltage method is the most recommended for integrating high levels of photovoltaic penetration into secondary distribution electrical networks.