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Novo conversor CC-CC integrado full-bridge-forward aplicado a uma microrrede residencial
(Universidade Federal de Santa Maria, 2013-02-07)
This Ph.D. Dissertation focuses on the proposal of a novel converter topology applied
to the connection of an energy storage system, composed of a supercapacitor bank and a
battery bank, to the dc bus of a residential ...
Desenvolvimento de uma fonte de potência CA para geração de formas de onda de até 2kHz
(Universidade Federal de Santa Maria, 2010-07-30)
This work presents the development of an alternating current power source with a single-phase full bridge voltage inverter, based on electronic switches. The source is designed to drive electromechanical and electric plants. ...
Comutador eletrônico de taps aplicado a um transformador de distribuição monofásico
(Universidade Federal de Santa Maria, 2014-02-27)
Voltage regulation still is a problem faced by power utilities currently. In addition to the series
impedance and the significant load variation of the distribution grids, the main causes of voltage
regulation problems, ...
Fonte ininterrupta de energia trifásica de alto desempenho sem transformador com dupla funcionalidade do estágio de entrada e sistema de controle digital
(Universidade Federal de Santa Maria, 2016-07-21)
This master s thesis proposes a three-phase transformerless double-conversion UPS with digital control system and reduced overall cost. The topology is composed of an input stage, a battery bank, an inverter, an auxiliary ...
Contribuições ao estudo de conversores CC–CC com processamento parcial de energia aplicados a sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2017-12-18)
This work presents some conceptual and practical contributions about the use of series-regulated
DC/DC converters in multi-string photovoltaic systems, which have been presented in the literature
as capable of performing ...
Topologias baseadas no conversor Zeta aplicadas em módulos Pv integrados para carga de baterias
(Universidade Federal de Santa Maria, 2015-03-23)
The management system and Future Renewable Electric Energy Delivery (FREEDM) is an example of microgrid distributed generation (GD), which has a power management. In the current DC bus the FREEDM are connected to the ...
Contribuição ao estudo do conversor multinível híbrido em cascata monofásico empregado na interface entre fonte fotovoltaica, banco de baterias e rede elétrica.
(Universidade Federal de Santa Maria, 2017-08-30)
This master thesis presents an energy management strategy in order to eliminate power fluctuations
from a photovoltaic source through a single-phase cascade hybrid multilevel grid-tie
converter associated with a battery ...
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 ...
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 ...