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Unidade de condicionamento de sinais para laboratório de ensaios em transformadores de distribuição
(Universidade Federal de Santa Maria, 2020-01-30)
The electrical power system (SEP) has stages of generation, transmission and distribution of energy and also faces constant problems regarding losses and energy efficiency. The transfor mers are essential equipments that ...
Metodologia para análise da tarifa binômia para consumidores residenciais considerando microgeração distribuída
(Universidade Federal de Santa Maria, 2020-09-24)
In view of the continuous increase in the consumption of electricity in the country, due to the different climatic conditions due to the great territorial extension and the approximation of the maximum capacity of electric ...
Modulação vetorial otimizada para o conversor packed U-cell
(Universidade Federal de Santa Maria, 2020-09-24)
This master’s dissertation proposes space vector modulation strategies for the Five-Levels Packed
U-Cell converter with optimization on the commutation number and balance of the floating
capacitors by use a cost function. ...
Conversor ANPC com porta CC bidirecional secundária para conexão de sistemas de armazenamento de energia
(Universidade Federal de Santa Maria, 2020-11-06)
This doctoral dissertation presents a new multilevel converter topology, derived from the ANPC inverter, which allows the connection of energy storage systems directly to the topology in a secondary DC port. In this way, ...
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 ...