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Eletrônica de Potência
Article . 2018 . Peer-reviewed
License: CC BY
Data sources: Crossref
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Eletrônica de Potência
Article . 2018
Data sources: DOAJ
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Conversor CC-CC de Alto Ganho Voltado para Aplicações Fotovoltaicas com Módulos de Filme Fino

Authors: Lenon Schmitz; Thamires P. Horn; Denizar C. Martins; Roberto F. Coelho;

Conversor CC-CC de Alto Ganho Voltado para Aplicações Fotovoltaicas com Módulos de Filme Fino

Abstract

Este artigo propõe um novo conversor cc-cc não isolado de alto ganho baseado no clássico conversor Buck síncrono com indutor acoplado e multiplicadores de tensão. Além de apresentar baixos esforços de tensão nos interruptores, o conversor proposto permite uma menor utilização magnética quando comparado a conversores baseados na topologia Boost, levando a uma estrutura mais compacta. Seu modo de operação ressonante possibilita comutação com tensão nula na ativação dos interruptores e comutação com corrente nula no bloqueio dos diodos, o que aumenta seu rendimento. Resultados experimentais obtidos a partir de um protótipo de 150 W, capaz de operar com uma grande variedade de módulos de filme fino, com tensão de entrada de 55-85 V e tensão de saída de 400 V, mostram que o rendimento máximo obtido é de 98,0% e os rendimentos ponderados da Comissão de Energia da Califórnia (CEC) são superiores a 96,7% em toda a faixa de tensão de entrada.

Keywords

Electrical engineering. Electronics. Nuclear engineering, TK1-9971

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    popularity
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    influence
    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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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!
5
Average
Average
Average
gold