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Now showing items 31-40 of 81
Controle neural aplicado a um conversor boost utilizado em aerogeradores de baixa potência
(Universidade Tecnológica Federal do ParanáCornelio ProcopioPrograma de Pós-Graduação em Engenharia Elétrica, 2014-08-27)
This work presents the study, design and simulation of a DC boost converter with output voltage control using neural networks. The boost converter studied in this work is being used in a wind turbine low power, with maximum ...
Conversores abaixador série-paralelo CC-CC e CA-CC a capacitor chaveado
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2021-12-20)
This work presents the study of a series-parallel switched capacitor step-down converter with static voltage gain of 1/2. The concepts, definitions and operating principle as a DC-DC and AC-DC converter are presented. A ...
Retificador bridgeless SEPIC PFC com rastreamento de máxima potência para processar energia elétrica de um sistema eólico de pequeno porte
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2016-12-16)
The main objective of this dissertation is to propose a three-phase bridgeless SEPIC PFC rectifier, based on a single-phase converter presented in Costa (2015). As a secondary objective and in order to assimilate the ...
Algoritmo de limitação de potência para conversores fotovoltaicos
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2020-02-20)
The main purpose of the DC-DC converter controller in a photovoltaic inverter is to extract the maximum power from the solar panels. For this, the maximum power point tracking algorithms (MPPT) are used. However, with the ...
Sistema de iluminação pública baseado em drivers modulares para lâmpadas de LED
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2017-04-27)
The use of LED based luminaires is a tendency for both indoor and street lighting, due to its high durability and efficiency. Despite these desirable features propel the use of LEDs on lighting systems, the lifespan of its ...
Carregador de baterias bidirecional com tranformador planar
(Universidade Tecnológica Federal do ParanáPato BrancoPrograma de Pós-Graduação em Engenharia Elétrica, 2013-08-27)
This work presents a study of the application of the Full-bridge bidirectional DC converter as a battery bank charger in a DC bus of renewable energy sources. The main problem is that these sources are seasonal and do not ...
Projeto, implementação e análise de um conversor CC-CC de alto ganho e alto rendimento para aplicações fotovoltaicas
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2016-04-26)
In recent years the photovoltaic generation has had greater insertion in the energy mix of the most developed countries, growing at annual rates of over 30%. The pressure for the reduction of pollutant emissions, diversification ...
Analysis, design and implementation of single-stage high-frequency-isolated DC-AC flyback converters
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2016-09-30)
This thesis proposes the analysis of two single-stage high-frequency isolated converters suited for grid-tied applications. Firstly, a new modulation strategy to the bidirectional flyback converter with differential output ...
Conversor CC-CC ZVZCS de três níveis com ampla faixa de comutação suave
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2022-04-27)
This work presents the analysis of a topology of the DC-DC three-level half bridge converter operating with ZVS in the active switches and ZCS in the output rectifier diodes, called HB-TL-ZVZCS-PWM (Half Bridge Converter ...
Bidirectional DC-DC converters for hybrid energy storage systems in electric vehicle applications
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilPrograma de Pós-Graduação em Engenharia ElétricaUTFPR, 2016-12-15)
In an era where environmental issues and the energetic safety are in an outstanding position, Electric Vehicles (EVs) are in the spotlight. However, it is difficult for them to replace the ICE vehicles and the main reason ...