Avaliação da confiabilidade em sistemas de distribuição de energia elétrica com alta inserção de geração distribuída: uma abordagem através do método de Newton-Raphson e da simulação de Monte Carlo
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Data
2024-12-11
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Universidade Federal de Goiás
Resumo
This study aimed to evaluate the influence of distributed generation (DG) on reliability parameters in electrical distribution systems, analyzing such metrics before and after allocation. In a different way, this work adopts the integration of the Monte Carlo technique with the Newton-Raphson method, applied to the resolution of the power flow problem, incorporating islanding detection based on Graph Theory. In addition, the use of the goodness-of-fit test (adherence) allows validating the adequacy of probabilistic distribution functions to stochastic variables, ensuring a diagnosis that is more faithful to real behavior. The analyzes were performed using the 14-bus RBTS test system. To this end, five indices were chosen to assess grid reliability: LOLE (Loss Of Load Expectation),
LOEE (Loss OF Energy Expectation), FEC (Frequency of Exceeding Capacity), IEC (Interrupted Energy Consumption) and IVR (Interruption Value Rate) , which together provide an excellent perspective of the system. With the addition of decentralized generation, an increase in system availability was noted, a decrease in voltage deviations in the grid, a reduction in unserved energy and fewer occurrences of failures. Thus, the integration of decentralized generation not only improves the parameters evaluated, but also highlights the points in the network that require greater care and allocation of resources, whether in protection devices and systems or in predictive maintenance actions, preventing possible technical complications and excessively high corrective expenses, following
the objectives and guidelines of SDG 7 (Sustainable Development Goals), proposed by the UN (United Nations), which aims at clean and affordable energy.
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Palavras-chave
Confiabilidade, Geração distribuída, Operação, Planejamento, Simulação de Monte Carlo, Método de Newton-Raphson, Distributed generation, Monte Carlo simulation, Operation, Planning, Reliability, Newton-Raphson method
Citação
SABREU, Igor Lyncoln Silva da. Avaliação da confiabilidade em sistemas de distribuição de energia elétrica com alta inserção de geração distribuída: uma abordagem através do método de Newton-Raphson e da simulação de Monte Carlo. 2024. 48 f. Trabalho de Conclusão de Curso (Bacharelado em Engenharia Elétrica) – Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás, Goiânia, 2024.