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Eletrônica de Potência
Article . 2016 . Peer-reviewed
License: CC BY
Data sources: Crossref
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Eletrônica de Potência
Article . 2016
Data sources: DOAJ
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Efeito da Conexão do Capacitor de Grampeamento sobre a Corrente de Entrada no Conversor Alimentado em Corrente Meia-ponte Zvs com Grampeamento Ativo

Authors: Silvio A. Teston; Emerson G. Carati; Rafael Cardoso; Jean P. da Costa; Carlos M. de O. Stein;

Efeito da Conexão do Capacitor de Grampeamento sobre a Corrente de Entrada no Conversor Alimentado em Corrente Meia-ponte Zvs com Grampeamento Ativo

Abstract

A conexão de geração fotovoltaica (PV) à rede através de microinversores ou em topologia CC paralela, em geral, requer que o conversor CC-CC apresente um elevado ganho de tensão. O conversor CC-CC alimentado em corrente meia- ponte com grampeamento ativo (ACCFHB) tem essa característica. O capacitor de grampeamento pode ser conectado tanto ao nó positivo quanto ao nó negativo da fonte de alimentação. O ponto de conexão tem efeito sobre a corrente drenada da fonte. Em sistemas fotovoltaicos, a ondulação da corrente drenada do módulo é um importante parâmetro de projeto e, em geral, implica na adição de filtros para reduzi-la. Esse trabalho analisa os efeitos da forma de conexão do capacitor de grampeamento sobre a corrente de entrada, propõe que a conexão seja feita no nó negativo para reduzir a ondulação ou para reduzir os requisitos de filtro necessários e analisa o funcionamento de um filtro LC na entrada do conversor. O conversor foi simulado e experimentado em laboratório usando ambas as possibilidades de conexão, com e sem o filtro LC de entrada, para confirmar a proposição teórica.

Related Organizations
Keywords

Ondulação da Corrente de Entrada, Sistemas de Geração Fotovoltaica, grampeamento ativo, Electrical engineering. Electronics. Nuclear engineering, Conversor Alimentado em Corrente, TK1-9971

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
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.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold