Metodologia para Estimação da Distorção Harmônica Total em Inversores Monofásicos Conectados à Rede Elétrica
DOI:
https://doi.org/10.18618/REP.2023.4.0027Keywords:
Distorção Harmônica Total, Inversores Conectados à Rede, Inversores Monofásicos, Modelagem em Malha Fechada, qualidade de energiaAbstract
Este artigo apresenta uma metodologia paraestimar, ainda na etapa de projeto, a distorção harmônicatotal da corrente injetada na rede elétrica por inversores fonte de tensão de dois estágios. Como tais inversores operam em malha fechada, a qualidade da corrente injetada na rede elétrica é altamente dependente da dinâmica das malhas de controle. Assim, é necessário focar em uma abordagem que modele o comportamento da corrente injetada na rede considerando as perturbações em malha fechada. A abordagem proposta possibilita a derivação de uma equação para prever o comportamento da corrente injetada na rede e estimar sua distorção harmônica, tornando-se uma importante ferramenta para otimizar o projeto de inversores conectados à rede. Para validar a acurácia da metodologia desenvolvida, são apresentados resultados experimentais em diferentes cenários de operação.
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