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Controlador digital multi-amostras PID e V2 COT híbrido para regulador buck síncrono
(Universidade Federal de Santa Maria, 2018-02-23)
This work presents a hybrid digital control method for a point-of-load synchronous buck
converter implemented in a digital signal processor, seeking to achieve high efficiency in light
loads and good transitory responses. ...
Metodologia para modelagem de transformadores de potencial indutivo e capacitivos para estudos de transitórios em altas frequências
(Universidade Federal de Santa Maria, 2015-11-13)
This dissertation proposes a modeling methodology for Inductive and Capacitive Voltage Transformers (IVT and CVT) for high-frequency electrical transients analysis, up to 3 MHz. The model construction starts from the VT s ...
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 ...
Métodos de bloqueio por oscilações de potência: uma análise em linhas de transmissão de três terminais
(Universidade Federal de Santa Maria, 2022-03-07)
The disturbances resulting from power swing (OP) cause, in a harmful way to the
electrical power system (SEP), acceleration or delay in the rotor angle between
synchronous generators in relation to synchronous frequency, ...
O estudo das topologias básicas de conversores híbridos CC-CC impedância série
(Universidade Federal de Santa Maria, 2022-03-16)
This work contains the study of basic topologies of hybrid converters classified as serious impedance, the converters presented here are said to be hybrid because they associate two technologies, the switched converters ...
Metodologia para simulações de arcos elétricos aplicada ao estudo de energia incidente em sistemas elétricos de potência
(Universidade Federal de Santa Maria, 2022-01-27)
Electric arcs are phenomena that occur when the ionization of the air is sufficient
to allow the flow of electric current, which can occur due to the separation of energized
contacts, such as during the opening of switching ...
Conversor DAB ressonante como opção para carregadores on-board de veículos elétricos
(Universidade Federal de Santa Maria, 2022-02-23)
The environmental need in the use of renewable energy sources, just as the reduction
in greenhouse gas emissions put electric vehicles as the great solution in the
transportation market for the coming years. Parallel to ...
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 ...
Projeção da difusão da geração distribuída fotovoltaica para consumidores comerciais conectados à rede de baixa tensão
(Universidade Federal de Santa Maria, 2022-04-08)
Incentives for renewable sources have provided a high growth of distributed photovoltaic generation (GDFV) in the Global electric matrix. Therefore, it is essential that current planning practices are ready to operate, ...