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Itens para a visualização no momento 11-20 of 27
Emprego de um comutador eletrônico de taps para regulação de tensão em redes elétricas a partir do modelo de carga
(Universidade Federal de Santa Maria, 2018-08-31)
This doctoral thesis proposes a method for regulating the secondary voltage of distribution systems
based on the identification of ZIP models of the load (constant impedance, constant current and
constant power) at the ...
Análise estática normalizada e modelagem de pequenos sinais do conversor classe-e utilizando transformadores piezoelétricos
(Universidade Federal de Santa Maria, 2011-08-04)
Piezoelectric transformers (PTs) allow the design of promising power supply applications, increasing
efficiency, reducing size, facilitating the achievement of high transformation ratio, besides providing
high immunity ...
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 ...
Desenvolvimento de um driver de injeção direta para motores ciclo otto empregando controlador repetitivo no estágio de saída
(Universidade Federal de Santa Maria, 2019-12-06)
This term paper proposes the development of a direct injection driver for solenoid injectors applied to Otto engines, employing a repetitive controller on the output stage. The fuel injectors typically used in direct ...
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 ...
Conversor Boost para rastreamento do ponto de máxima potência de um gerador síncrono de imãs permanentes empregado em geração eólica
(Universidade Federal de Santa Maria, 2017-07-14)
This work explores the actual need of renewable energy generation through the development of a boost converter to extract the maximum power of a permanent stator magnet wind generator (PSMG) isolated from the grid. Such ...
Co-projeto de perspectiva completa para conversores CC-CC com controlador digital
(Universidade Federal de Santa Maria, 2017-03-20)
Cyber-physical systems performance are dependents of cyber and physical domains. This work
applied a cyber-physical approach in digitally controlled power converter. This thesis proposes
a new full perspective co-design ...