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Itens para a visualização no momento 21-30 of 46
Metodologia de projeto do conversor DAB aplicado a transformadores de estado sólido
(Universidade Federal de Santa Maria, 2014-08-01)
This thesis presents a design methodology for the dual active bridge converter, that includes the influence of the nominal phase-shift angle in the behavior of the DAB converter for entire power and voltage ranges. The ...
Microinversores baseados na topologia meia-ponte isolada alimentada em corrente
(Universidade Federal de Santa Maria, 2018-07-25)
The Microinverter is an inverter sized to meet individual solar panels, usually consisting of two stages, one DC-DC stage and another CC-AC stage. For the first stage of the DC link microinverter, the isolated current-fed ...
Metodologia de otimização de conversores estáticos com paralelismo de células boost aplicado à célula a combustível
(Universidade Federal de Santa Maria, 2019-02-28)
This thesis presents an optimized design methodology for non-isolated static converters with Nboost
cells in parallel, that process energy between a renewable energy source and a DC bus. The
method scans for the best ...
Estudo e comparação de sistemas de acionamento para aplicações de alta potência e média tensão
(Universidade Federal de Santa Maria, 2010-08-24)
This Ph.D. Thesis proposes a comparison of modulation techniques, semiconductors devices technologies and topologies for multilevel inverters, in order to point out the multilevel drive system that presents the best ...
Conversor boost com indutor acoplado de arranjo diferencial com grampeador ativo com comutação em zero de tensão
(Universidade Federal de Santa Maria, 2022-07-27)
The population grouth and technological development led to increasing energy
demand in the world, which leads many countries to look for fossil fuels to meet the
increasing energy damand in the world. The use of fossil ...
Contribuição à família de conversores CC-CC bidirecionais buck/boost
(Universidade Federal de Santa Maria, 2022-07-17)
With the search for clean renewable energies and the growing of the greenhouse
gases, there is an increase in the number of electric vehicles and own generation. As most
renewable energies are naturally in DC the best ...
Projeto e implementação de um conversor CC-CC elevador-rebaixador de tensão para uma bancada didática de eletrônica de potência e controle digital de sistemas
(Universidade Federal de Santa Maria, 2017-08-10)
The present report describes the design and construction of a low-cost and low-size DC-DC step-up-down converter (also known as buck-boost converter) for a didactic bench that can be used in the experimental classes of the ...
Desenvolvimento de um carregador para veículos elétricos leves utilizando dispositivos de Wide Bandgap
(Universidade Federal de Santa Maria, 2022-07-14)
This master thesis presents the development of a light electric vehicles charger using Wide-Bandgap (WBG) devices. The developed charger is composed of two stages, one rectifier (AC-DC converter), with input current power ...
Conversores compostos para o interlink entre os barramentos de baixa e extrabaixa tensão de nanorredes CC
(Universidade Federal de Santa Maria, 2022-07-27)
This thesis presents a study on isolated DC-DC converters for the interface between a
low voltage bus, EBT (48 V), and a low voltage bus, BT (380 V) for a 1.2 kW residential
DC-DC nanogrid. The proposed converter makes ...
Desenvolvimento de conversores estáticos para sistemas fotovoltaicos autônomos
(Universidade Federal de Santa Maria, 2007-07-12)
This work presents a new energy conditioning system for application in stand-alone photovoltaic systems with battery bank. Firstly, the characteristics of solar photovoltaic energy, the modeling of a photovoltaic cell and ...