Modelagem e Controle de um Conversor Dual Active Half-Bridge com Modulação PWM Simétrica Aplicado à Interligação de Fontes de Geração de Energia
DOI:
https://doi.org/10.18618/REP.2021.3.0044Keywords:
Baterias, Conversor Dual-Active Half-Bridge, DSTATCOM, FotovoltaicoAbstract
Este artigo apresenta a modelagem e o controle de um conversor Dual Active Half-Bridge (DAHB) aplicado na interconexão de fontes de geração de energia. O sistema de geração considerado é composto por uma fonte CC de geração fotovoltaica (PV) combinada com um sistema de geração em corrente alternada (CA) hídrica, composta de um gerador de indução auto excitado (GIAE) e um compensador síncrono estático de distribuição (DSTATCOM), além de um sistema de armazenamento de energia em baterias (BESS). O conversor DAHB é responsável pela interface entre esses três sistemas, bem como por realizar o isolamento galvânico e auxiliar no sistema de gerenciamento do fluxo de potência entre as fontes de energia. Neste trabalho, a modulação PWM simétrica é aplicada no conversor DAHB, possibilitando a modelagem matemática do conversor DAHB de maneira simplificada, a partir da qual é realizado o projeto dos controladores proporcionais-integrais. Por fim, resultados de simulação e experimentais são obtidos acerca do conversor DAHB, validando este e os controladores utilizados.
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