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This work evaluates the evolution of the main interarea modes of the Brazilian Interconnected Power System (SIN) in the 2020 – 2024 horizon with high levels of wind and solar generation in the Northeast region of Brazil. The software PacDyn is chosen for the simulations with the Dominant Pole Spectrum Eigensolver (DPSE) algorithm to help identify the modes of interest. Besides that, the impacts of the expansion of SIN’s Interconnections on the interarea modes are studied. Resumo: Este trabalho avalia a evolução dos principais modos interárea do SIN no horizonte de 2020 – 2024, considerando cenários de elevada geração eólica e solar fotovoltaica no Nordeste. O programa computacional PacDyn é adotado nas simulações com o algoritmo Dominant Pole Spectrum Eigensolver (DPSE) para a identificação dos modos de interesse. Além disto, são estudados os impactos de obras de ampliação das Interligações do SIN sobre os modos interárea.

Análise da Evolução dos Modos Interárea do SIN no Hozironte de 2020 a 2024