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Projeto e validação experimental de um controlador robusto H2 aplicado a conversores Boost
(Universidade Federal de Santa Maria, 2011-07-25)
This dissertation presents as the main contribution the design and experimental
validation of a robust H2 controller applied to boost converters with variations on the
parameters load resistance, input voltage and operating ...
Metodologia para despacho de fontes de GD a biogás em redes de distribuição utilizando lógica fuzzy
(Universidade Federal de Santa Maria, 2012-03-19)
The aim of this work is determine the most appropriated period for connection of a
particular generation source fueled by biogas on a distribution network. The biogas is
produced through anaerobic reactions that occur ...
Algoritmo de alto desempenho para proteção numérica de linhas de transmissão imune a oscilações de potência
(Universidade Federal de Santa Maria, 2012-05-04)
This Doctoral Thesis proposes a new methodology for transmission line protection
tolerant to power swings. The algorithm developed has the ability to detect, classify and
locate all fault types with and without power ...
Estudo e implementação de uma luminária de iluminação pública à base de LEDs
(Universidade Federal de Santa Maria, 2013-02-18)
This work presents a study for the design and implementation of a LED Street
light Luminaire. It shows the necessary characteristics for the proposed fixture replace
the traditional models with High Pressure Sodium lamps ...
Sistemas eletrônicos para iluminação de exteriores empregando diodos emissores de luz (LEDs) alimentados pela rede elétrica e por baterias
(Universidade Federal de Santa Maria, 2012-11-30)
This work presents a design methodology and analysis of electronic circuits applied to
outdoor lighting systems using light emitting diodes (LEDs). The goal of topologies developed
here is to supply the LEDs from the ...
Conversor flyback modificado para alimentação de lâmpadas de descarga em alta pressão: projeto, modelagem e controle
(Universidade Federal de Santa Maria, 2012-03-01)
This dissertation consists of the design of an electronic ballast to drive high pressure discharge (HID) lamps, focusing on low power applcations. An innovative modified yback conveter is proposed as main part of an ...
Gerador de indução com excitação estática, filtro ativo e armazenamento de energia para sistemas eólicos isolados
(Universidade Federal de Santa Maria, 2013-03-01)
The growing global demand for electricity, increasing scarcity of the conventional
energy sources and the need to reduce environmental impacts contributed to the pronounced
development of new technologies based on clean ...
Desenvolvimento de uma topologia híbrida a três fios para regulação de tensão aplicada em microcentrais hidrelétricas
(Universidade Federal de Santa Maria, 2013-01-25)
This dissertation presents the study of a three-wire hibrid topology for voltage
regulation for micro-hydroelectric generators that use self-excited induction in isolated
operation. Initially, a literature review is ...
Sistemas eletrônicos de iluminação baseados nos conversores CA/CA
(Universidade Federal de Santa Maria, 2011-08-23)
This thesis proposes to improve the efficiency of public illumination systems by means of AC chopper based power converters. A comparative study of high performance AC/AC converters feeding high pressure sodium lamps on ...