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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 ...
Roteamento geográfico para redes de sensores e atuadores sem fio em redes urbanas de comunicação
(Universidade Federal de Santa Maria, 2012-05-25)
Smart grids and smart utility networks are the next-generation utility networks that
intend to provide efficient control and management of utilities such as electricity, natural
gas, water and sewage. Communication ...
Pesquisa sobre o efeito de fenômenos solares no potencial energético solar-eólico
(Universidade Federal de Santa Maria, 2015-09-11)
This thesis analyzes the monthly data from historical series of the heat stroke
cycles, solar radiation and average wind speeds in the 1961 and 2008 period to
identify long-term inaccuracies in the location of both wind ...
Controle adaptativo robusto combinado com regulador linear quadr atico aplicado a condicionadores de energia
(Universidade Federal de Santa Maria, 2014-09-05)
This work proposes an algorithm that combines two control laws with di erent
compensation characteristics in order to obtain a robust and high performance control:
A Linear Quadratic Regulator aided by a Kalman lter or ...
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 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 ...