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Análise da eficácia luminosa de sistemas de iluminação com comunicação agregada
(Universidade Federal de Santa Maria, 2020-10-09)
Visible light communication (VLC) currently receives attention in the consumer electronics
media mainly because of the potential to improve the data rate of Internet access in short
range mobile communications, yet several ...
Metodologia de detecção e classificação de faltas de alta impedância em redes de distribuição: implementação em hardware e validação por meio de simulação digital em tempo real
(Universidade Federal de Santa Maria, 2020-09-28)
The present work deals with the detection of high impedance faults (HIF) in Electricity
Distribution Networks. An in-depth study is carried out on this type of fault, as well as on some
important HIF detection methods. ...
Sistema de telegestão para iluminação pública usando comunicação LoRaWAN
(Universidade Federal de Santa Maria, 2020-12-18)
The advance of technology in Lighting Systems had an important moment with the insertion of LEDs, as it significantly increased the efficiency of all systems. Allied to this growth,
there is also the growth of the so-called ...
Metodologia para cálculo da temperatura de cor e fluxo luminoso de um ou mais LEDs baseada apenas em dados do fabricante
(Universidade Federal de Santa Maria, 2020-08-24)
This work presents a methodology to estimate the correlated color temperature and the luminous flux of light sources composed of one or more white LEDs using only data from the manufacturer's specification sheet. The ...
Estudo, análise e projeto de sistemas magnéticos aplicados a conversores estáticos
(Universidade Federal de Santa Maria, 2020-02-10)
Given that the volumetric design of transformers and inductors is directly connected to losses, the correct prediction of these is fundamental for their optimization. With this vision, this work presents techniques for the ...
Conversores CC–CC bidirecionais para regulação série de tensão aplicados em sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2020-02-27)
This work provides some conceptual and practical contributions about the use of DC–DC power
converters connected as step-up/down series voltage regulators in string or multi-string architectures
of grid-tie photovoltaic ...
Avaliação de diferentes técnicas para o melhor aproveitamento das energias elétrica e térmica em usinas fotovoltaicas
(Universidade Federal de Santa Maria, 2020-09-28)
The growing demands for electric energy have called attention of several nations about the
environmental pollution caused by the sources of generation. In order to soften environmental
these influences, many investments ...
Roadmap em sistemas residenciais de armazenamento de energia elétrica no Brasil
(Universidade Federal de Santa Maria, 2020-02-19)
Energy storage systems plays a crucial role in the expansion of intermittent renewable sources in the
search for a more sustainable energy matrix, since it enable this evolution to occur safely and reliably. In this
context ...
Metodologia baseada em simulações para determinação dos esforços eletromecânicos em transformadores de potência
(Universidade Federal de Santa Maria, 2020-02-28)
The power transformers, responsible for adapt the voltage levels, are essential equipment to the operation of electrical systems. Exposed to different situation, they are subject to several failures that can lead to an ...
Método para detecção, identificação e classificação de erros em redes de distribuição por meio do estimador de estados e índices de desvio
(Universidade Federal de Santa Maria, 2020-09-25)
The development of new technologies, needs and concepts, have led to numerous contributions
to several fields of knowledge, one of which is the Electric Power Systems. Contained in this
area, the Electricity Distribution ...