Revista Eletrônica de Potência (Brazilian Journal of Power Electronics)

Palavras Chaves: Baterias, Conversor Dual-Active Half-Bridge, DSTATCOM, Fotovoltaico

Resumo
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.

Title: MODELING AND CONTROL OF THE DUAL ACTIVE HALF-BRIDGE CONVERTER WITH SYMMETRIC PWM MODULATION APPLIED TO THE INTERCONNECTION OF POWER GENERATION SOURCES

Keywords: Batteries, Conversor Dual-Active Half-Bridge, DSTATCOM, PV

Abstract
This paper presents the modeling and control of a Dual Active Half-Bridge (DAHB) converter applied to the interconnection of power generation sources. The generation system consists of a DC source of photovoltaic generation (PV) combined with an alternating current (AC) hydro generation system, composed of a self-excited induction generator (GIAE) and a static synchronous distribution compensator (DSTATCOM), in addition to a battery energy storage system (BESS). The DAHB converter is responsible for the interface between these three systems, as well as for performing galvanic isolation and assisting in the power flow management system between energy sources. In this work, the symmetric PWM modulation is applied to the DAHB converter, allowing the mathematical modeling of the DAHB converter in a simplified way, from which the proportional-integral controllers design is carried. Finally, simulation and experimental results are obtained about the DAHB converter, validating this and the used controllers.

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