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Estudo comparativo entre o condicionamento de ar geotérmico e o convencional e suas perspectivas para o sistema elétrico nacional
(Universidade Federal de Santa Maria, 2015-06-03)
This dissertation deals with a comparison between energy consumption of conventional air conditioning and the surface geothermal conditioning for room environments.
Studies have been conducted about soil constitution, ...
Circuitos de acionamento para iluminação semicondutora empregando topologias integradas com capacitores de longa vida útil
(Universidade Federal de Santa Maria, 2013-08-06)
This work presents an analysis and design of two Light Emitting Diode (LED) drivers topologies based on static switched converters aiming to avoid using electrolytic capacitors. Considering the low lifetime of electrolytic ...
Metodologia de priorização de investimentos em modernização de equipamentos de proteção e manobra de subestações de distribuição
(Universidade Federal de Santa Maria, 2017-08-24)
The continuous and reliable supply of energy becomes a necessity of modern society, therefore, it is expected that its restoration is as fast as possible in any interruptions, and that it will reach the smallest possible ...
Estudo e aplicação de conversor multinível híbrido com uma única fonte CC
(Universidade Federal de Santa Maria, 2013-03-07)
This study proposes a modulation strategy based on geometric approach for a hybrid multilevel converter with single dc voltage source. This multilevel converter is composed of a three-phase three-level multilevel converter ...
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 ...
Aprimoramento da estimativa do fluxo luminoso e metodologia de projeto para sistemas de iluminação que utilizam diodos emissores de luz
(Universidade Federal de Santa Maria, 2016-03-31)
The understanding of the interrelationships among the photometrical, electrical and
thermal (photo-electro-thermal) parameters is extremely important to design lighting systems
based on light-emitting diodes (LEDs), ...
Modulação Space Vector ótima para conversores estáticos
(Universidade Federal de Santa Maria, 2019-06-03)
This work proposes an optimal space vector modultation methodology based on the FCSMPC
approach for static converters relying on a cost function in order to decide, among
the redundant vectors, those which forms the ...
Controle ressonante aplicado a um DSTATCOM para a regulação de tensão de geradores de indução autoexcitados
(Universidade Federal de Santa Maria, 2019-08-02)
This master’s thesis presents contributions to the control applied to the voltage regulation of autonomous
microgeneration systems based on Self-Excited Induction Generators (SEIGs). The
generation system consists of a ...
Controlador MRAC-SM aplicado a um conversor QUASI-Z-SOURCE fotovoltaico conectado à rede monofásica
(Universidade Federal de Santa Maria, 2019-08-02)
This dissertation deals with the design and development of an Adaptive Control by Model
Reference (MRAC) structure together with a Sliding Mode (SM) controller through a simplified
first order reference model, neglecting ...
Sistema de controle para turbina eólica de eixo vertical
(Universidade Federal de Santa Maria, 2018-11-30)
This master thesis presents the development of a control system to vertical axis
wind turbine in order to harnessing its maximum performance. Vertical axis turbine
designs and how they could be integrated with urban area ...