Search Results - "Francisco Coelho, Roberto"

Partial Power Processing and Efficiency Analysis of dc-dc Differential Converters by de Andrade, Jéssika Melo, Coelho, Roberto Francisco, Lazzarin, Telles Brunelli

“…This paper presents a partial power processing and an efficiency analysis of dc-dc differential converters based on the use of two basic converters of the same…”
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New High Step-up dc-dc Converter with Quasi-Z-Source Network and Switched-Capacitor Cell by de Andrade, Jessika Melo, Francisco Coelho, Roberto, Lazzarin, Telles Brunelli

“…This paper proposes a new high step-up dc-dc converter with quasi-Z-source network and switched-capacitor cell (HSU-qZS-SC). Static and dynamic analysis are…”
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Modified Current Sensorless Incremental Conductance Algorithm for Photovoltaic Systems by Gruner, Víctor Ferreira, Zanotti, Jefferson William, Santos, Walbermark Marques, Pereira, Thiago Antonio, Schmitz, Lenon, Martins, Denizar Cruz, Coelho, Roberto Francisco

“…This paper proposes a novel maximum power point tracking algorithm applied to photovoltaic systems. The proposed method uses the derivative of power versus…”
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High Step-Up DC–DC Converter With Active Switched-Inductor and Passive Switched-Capacitor Networks by Salvador, Marcos Antonio, Lazzarin, Telles Brunelli, Coelho, Roberto Francisco

“…High-gain voltage conversion is a feature required for several applications, especially for power processing of low-voltage renewable sources in grid-connected…”
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Metodologia para derivação de conversores cc-cc elevadores de alto ganho baseados em conexões diferenciais by De Andrade, Jéssika Melo, Salvador, Marcos Antonio, Coelho, Roberto Francisco, Lazzarin, Telles Brunelli

“…Este artigo apresenta uma metodologia para síntese de topologias de alto ganho a partir da conexão diferencial entre conversores cc-cc básicos. Tais…”
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Inversores do Tipo Forward para Conexão de Fontes Renováveis à Rede Elétrica by Gabriel Grunitzki Facchinello, Roberto Francisco Coelho, Telles Brunelli Lazzarin

“…Este artigo propõe dois inversores do tipo Forward, os quais foram concebidos para a conexão de fontes renováveis à rede elétrica através de um estágio único…”
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Conversor Cc-cc de Alto Ganho e com Compartilhamento da Corrente de Entrada Empregado em Células A Combustível by Lenon Schmitz, Roberto Francisco Coelho, Denizar Cruz Martins

“…Este artigo propõe uma configuração de conversores cc-cc aplicada ao processamento de energia proveniente de células a combustível. Tal configuração é baseada…”
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Modelagem Do Conversor Boost Com Células A Capacitor Chaveado Por Meio De Um Conversor Equivalente De Ordem Reduzida by Gilberto Valentim Silva, Roberto Francisco Coelho, Telles Brunelli Lazzarin

“…Uma das formas de alcançar elevado ganho estático por meio do conversor boost clássico consiste na adição de células a capacitor chaveado a sua estrutura,…”
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Caracterizador Elétrico De Módulos Fotovoltaicos Utilizando O Conversor CC-CC Ćuk by Thiago Antonio Pereira, Walbermark Marques dos Santos, Denizar Cruz Martins, Roberto Francisco Coelho

“…Neste artigo apresenta-se uma metodologia utilizada para projetar um conversor Ćuk de 300 W que opere como caracterizador elétrico de módulos fotovoltaicos. O…”
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Conversor Dual Active Bridge Ca-Ca Com Porta Em Meia Ponte Para Transformadores De Estado Sólido by Gabriel Grunitzki Facchinello, Lucas Lapolli Brighenti, Sérgio Luis Brockveld Junior, Walbermark Marques dos Santos, Roberto Francisco Coelho, Denizar Cruz Martins

“…Este artigo apresenta uma topologia de conversor de estado sólido caracterizado por permitir a conversão direta ca-ca por meio de um barramento alternado…”
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Proposta De Uma Estrutura CC-CC Com Redundância Interna De Módulos Conversores Para Aplicações Em Transformadores De Estado Sólido by Henrique Rocha Mamede, Vinicius Netto Trucco, Daniel Tobias da Silva Borges, Lucas Lapolli Brighenti, Walbermark Marques dos Santos, Roberto Francisco Coelho, Denizar Cruz Martins

“…Várias arquiteturas de link cc para transformadores de estado sólido têm sido sugeridas na literatura. No entanto, algumas são unidirecionais, não modulares,…”
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Grid-connected PV-wind-fuel cell hybrid system employing a supercapacitor bank as storage device to supply a critical DC load by Coelho, Roberto Francisco, Schimtz, Lenon, Martins, Denizar Cruz

“…In this work a grid-connected renewable energy system composed by a lkW photovoltaic (PV) array and a 1 kW wind turbine (WT) is presented. The generated power…”
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Estudo e implementação de métodos passivos de proteção anti-ilhamento aplicados à sistemas fotovoltaicos monofásicos by Leonardo Severo, Roberto Francisco Coelho, Denizar C. Martins

“…Este artigo apresenta uma síntese da implementação de métodos passivos de detecção de ilhamento por frequência e tensão e, detecção por salto de fase da…”
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Dynamic Modeling of Differential DC-DC Converters Using Thévenin Equivalent Circuit by Salvador, Marcos Antonio, Orlando, Tailan, Martins, Denizar Cruz, Heldwein, Marcelo Lobo, Lazzarin, Telles Brunelli, Kirsten, Andre Luis, Coelho, Roberto Francisco

“…This paper presents an approach to obtain dynamic models of differential DC-DC converters based on Thévenin equivalent circuits. A differential converter is…”
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Modeling Methodology and Control Strategy for Differential Step-up dc-dc Converters by de Andrade, Jessika Melo, Coelho, Roberto Francisco, Lazzarin, Telles Brunelli

“…Differential converters are usually composed of two converters and their control-oriented models are usually described by high order transfer functions. To…”
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Step-Down Converter for Low Current Ripple in Electrolyzer with MPPT Control Strategy by Rech, Thiago Fonseca, Orlando, Tailan, Coelho, Roberto Francisco, Kirsten, Andre Luis

“…The current mainstream method of global hydrogen production relies on steam reforming of natural gases, which leads to CO 2 emissions. Renewable-powered water…”
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Assessing the Effects of One-Diode Model Parameter Variations on the I-V Curves of Photovoltaic Generators: An Application by da Silva, Matheus Meireles, Kirsten, Andre Luis, Coelho, Roberto Francisco

“…This paper introduces the design of an application that visually depicts the I-V curve of a photovoltaic module utilizing data provided by the user from the…”
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250 W Single Stage Step-up Inverter Connected to the Grid by de Andrade, Jessika Melo, Francisco Coelho, Roberto, Lazzarin, Telles Brunelli

“…This paper addresses the study of the switched-capacitor differential boost inverter (SCDBI) for the connection to the electrical grid. The corroboration of…”
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Small Scale Compressed Air Energy Storage (SS-CAES) Strategies Overview by Martins Pastuch, Luiz Fernando, Francisco Coelho, Roberto, Lazzarin, Telles Brunelli, Antonio Salvador, Marcos

“…Compressed air energy storage (CAES) is a technology to store electrical energy employed for decades, mainly through large scale systems. Today, small scale…”
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High Step-Up DC-DC Converter with Input Current Sharing Based on the Forward Converter by Gruner, Victor Ferreira, Fiamoncini, Lucas, Schmitz, Lenon, Martins, Denizar Cruz, Francisco Coelho, Roberto

“…This paper presents a DC-DC converter capable of dealing with low voltage and high input current sources. The proposed topology is based on Forward converters…”
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