Integração de usinas solares fotovoltaicas e eólicas de grande porte em sistemas de transmissão de energia elétrica
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2023-08-22
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Universidade Federal de Goiás
Resumo
Abstract—This article addresses the assessment of the impacts of integrating large-scale photovoltaic and wind power plants into the electric transmission network. To accomplish this, computer simulations based on the Monte Carlo Method were conducted. The simulations consider the probabilistic variation of the primary resource of the energy sources, solar irradiance, and wind speeds, in order to calculate the output powers of the plants. Three power electrical systems found in technical literature were analyzed: Chesf Simplified 5-bus, IEEE 9-bus, and IEEE 14- bus. For each simulated system, the average values of energy losses, voltage levels, as well as the average values of generation
from renewable plants are obtained and analyzed. The results demonstrated that the additional generation from the plants can reduce the total active energy losses in the system, especially when they are located close to the loads, thus avoiding the transmission of energy over long distances. However, for one of the tested systems, an increase in average active energy losses was observed, which may be due to the consequential effects of reverse power flow in the branches connecting the allocation bars of the plants, which were randomly selected. The voltages at the bars were also evaluated, showing an increase in maximum voltages, but within recommended limits. Therefore, it is concluded that the integration of large renewable plants into transmission systems requires careful planning involving optimization techniques for their allocation and sizing, in such a way as to avoid undesirable impacts on the electrical system.
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Usinas solares fotovoltaicas, Usinas eólicas, Simulação de Monte Carlo, Redes de transmissão de energia elétrica, Terms photovoltaic solar plants, Wind power plants, Monte Carlo simulation, Electrical transmission network
Citação
RASTELI, João Gabriel Teixeira. Integração de usinas solares fotovoltaicas e eólicas de grande porte em sistemas de transmissão de energia elétrica. 2023. 18 f. Trabalho de Conclusão de Curso (Bacharelado em Engenharia Elétrica) - Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás, Goiânia, 2023.