Search Results - "Oliveira Junior, Demercil de Souza"

High-Frequency Isolated AC-DC-AC Interleaved Converter for Power Quality Applications by Cipriano da Silva Filho, Olympio, de Almeida, Bruno Ricardo, de Souza Oliveira Junior, Demercil, Fernandes Neto, Tobias Rafael

“…This paper presents a single-phase ac-dc-ac converter with high-frequency isolation, which employs the interleaved technique. The proposed converter is…”
Get full text

Three‐phase bidirectional isolated LLC resonant DC‐DC converter for DC microgrid applications by dos Santos, Kristian Pessoa, de Lima Henn, Gustavo Alves, de Souza Oliveira Junior, Demercil, Barreto, Luiz Henrique Silva Colado, Tofoli, Fernando Lessa, Filho, Hermínio Miguel Oliveira, Praça, Paulo Peixoto

“…DC microgrids rely strongly on bidirectional dc‐dc converters responsible for managing the power flow among distinct loads and renewable energy sources like…”
Get full text

Four-Port, Single-Stage, Multidirectional AC-AC Converter for Solid-State Transformer Applications by Santos, Cicero Alisson dos, Mazza, Luan Carlos, Tofoli, Fernando Lessa, Oliveira Junior, Demercil de Souza, Praca, Paulo, Antunes, Fernando

“…Solid-state transformers (SSTs) have emerged as an interesting solution for replacing the traditional low-frequency transformers in power distribution systems…”
Get full text

Interleaved bidirectional DC–DC converter with single‐phase high‐frequency isolation for the wide range of industrial applications by El Kattel, Menaouar Berrehil, Nogueira Cavalcante, Kassio Derek, Praça, Paulo Peixoto, Oliveira Junior, Demercil de Souza, Marcelo Antunes, Fernando Luiz

“…Summary This paper outlines the development of an interleaved bidirectional DC–DC converter featuring single‐phase high‐frequency isolation and employing two…”
Get full text

Nonisolated high step‐up DC‐DC interleaved SEPIC converter based on voltage multiplier cells by Salvador, Thaís Carvalho, Tofoli, Fernando Lessa, Souza Oliveira Júnior, Demercil, Ribeiro, Enio Roberto

“…This work presents a nonisolated high step‐up single‐ended primary inductance converter (SEPIC) topology for high‐power, high‐current applications. The…”
Get full text

Improvements on PFC Boost Self-Control Structure by Correia, Wilkley Bezerra, de Souza Junior, Demercil Oliveira, de Sousa Vasconcelos, Felipe Jose, Medeiros, Jose Willamy

“…This paper introduces a modified control structure specifically designed for Power Factor Correction (PFC) boost converters. The primary aim of this structure…”
Get full text

A Solid State Transformer Based on a Single-Stage Three-Phase AC-DC T-Type Converters by Oliveira Rodrigues, Roberio, Dos Santos Mazza, Luan Carlos, Da S. Lima, Welton, De Souza Oliveira Junior, Demercil, Barreto, Luiz H. Silva Colado, De Araujo Honorio, Dalton

“…Conventional power transformers are equipment that are used to raise or lower voltages and currents and transfer energy in transmission and distribution…”
Get full text

Modelling of nonisolated high-voltage gain boost converters using the PWM switch model by Alcazar, Yblin Janeth Acosta, Tofoli, Fernando Lessa, Oliveira Jr, Demercil de Souza, Torrico-Bascopé, René Pastor

“…This paper presents the small-signal models for nonisolated dc-dc boost converters based on the three-state switching cell (3SSC) and voltage multiplier cells…”
Get full text

Steady-State Characterization of the Three-Phase Isolated DC-DC Bidirectional Converter with LLC Resonant Tank by dos Santos, Kristian Pessoa, Filho, Herminio Miguel Oliveira, Praca, Paulo Peixoto, de Souza Oliveira Junior, Demercil

“…This paper presents a theoretical and computational analysis of a novel three-phase DC-DC isolated bidirectional LLC resonant converter using frequency…”
Get full text

Proposal of a new family of high frequency isolated single-phase AC-AC converters by Cipriano da Silva Filho, Olympio, de Souza Oliveira, Demercil

“…This paper proposes a new family of high frequency isolated single phase ac-ac converters. Three topologies of the proposed family are analyzed in face of…”
Get full text

Boost PFC Sem Sensor De Corrente Utilizando Técnica De Deslocamento De Amostra De Tensão by Leonardo Tabosa Albuquerque, Carlos Elmano de Alencar e Silva, Demercil de Souza Oliveira Júnior, Edilson Mineiro Sá Junior

“…Este trabalho apresenta uma técnica para correção de fator de potência com um conversor Boost monofásico sem utilização de sensor de corrente, implementada…”
Get full text

Conversor CC-CC Bidirecional De Três Portas, Estágio Único E Alto Ganho De Tensão Para Aplicações Em Sistemas Fotovoltaicos by Paulo Peixoto Praça, Diego Bruno Saraiva Alves, Demercil de Souza Oliveira Júnior, Luan Carlos dos Santos Mazza, Luiz Henrique Silva Colado Barreto

“…Este artigo tem por escopo apresentar o estudo e desenvolvimento de um conversor CC-CC não isolado de três portas, adequado à integração em um único estágio de…”
Get full text

Dc-ac Power Supply For Battery Based Systems by Carlos Elmano de Alencar e Silva, Demercil de Souza Oliveira Júnior, Herminio Miguel de Oliveira Filho, Fernando Luiz Marcelo Antunes

“…This work presents the analysis, design, and experimental development of a single-phase inverter with high frequency transformer isolation and for a wide input…”
Get full text

Double Conversion Uninterrupted Energy System With Rectifier And The Inverter Integration by Fabíola Maria Alexandre Linard, Fabíola Maria Alexandre Linard, Cícero Marcos Tavares Cruz, Demercil de Souza Oliveira Júnior, René Pastor Torrico Bascopé, Gustavo Alves de Lima Henn

“…This paper presents the design, implementation and experimental results of a double conversion uninterrupted power supply (UPS), with integration of the…”
Get full text

Soft-switching bidirectional isolated three-phase DC-DC converter with dual phase-shift and variable duty cycle by de Oliveira Filho, Herminio Miguel, de Souza Oliveira, Demercil, Praca, Paulo Peixoto

“…This paper presents the analysis, design, and experimental results for a soft-switching bidirectional isolated three-phase DC-DC converter with dual…”
Get full text

Estudo e Validação Experimental de um Conversor Multinível Modular Entrelaçado CA-CC Monofásico Para Aplicações de Transformadores de Estado Sólido by Davi R. Joca, Luiz H. S. C. Barreto, Demercil de S. Oliveira Jr, Jean-C. Vannier, Bogdan Džonlaga, Loïc Quéval

“…Este artigo tem como objetivo apresentar o estudo teórico e a obtenção de resultados experimentais de uma topologia monofásica baseada em um conversor…”
Get full text