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DEDUÇÃO DE FILTRO LC PARA CONVERSORES CC-CA MONOFÁSICO HALF BRIDGE

Authors: Cristiano Facco; Fabrício Hoff Dupont; Gleyson Luiz Piazza; Theyllor Hentschke de Oliveira;

DEDUÇÃO DE FILTRO LC PARA CONVERSORES CC-CA MONOFÁSICO HALF BRIDGE

Abstract

O intuito deste trabalho é a elaboração e demonstração da dedução de um filtro LC para o conversor CC-CA senoidal monofásico Half Bridge, devido às inúmeras aplicações em equipamentos como: no-breaks e inversores para o controle de velocidade de motores. A topologia do conversor justifica-se devido a sua simplicidade e versatilidade em aplicações de baixa potência e de implementação. A partir das etapas de funcionamento do conversor e da análise matemática obtêm-se os ângulos de maiores ondulações de corrente e de tensão no funcionamento do conversor, e com isso, simplificam-se as equações do cálculo da indutância e capacitância do filtro LC de saída do conversor, a fim de melhorar a eficiência da estrutura. Dimensiona-se e implementa-se o conversor a partir de parâmetros estabelecidos como potência e ondulações de saída para a demonstração da aplicação, comprovando-se as deduções e simplificações das equações para o filtro de saída. Através dos resultados experimentais comparam-se os dados aferidos com os parâmetros estipulados, demonstrando o correto funcionamento e robustez do filtro.

Keywords

Conversor CC-CA, Modelagem de Filtro LC, Half Bridge

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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