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Itens para a visualização no momento 11-20 of 32
Técnica de comunicação por luz visível em um conversor rebaixador para sistemas de iluminação a LED
(Universidade Federal de Santa Maria, 2018-02-27)
This work presents the complete formulation of a synchronous buck converter operating as a
Light Emitting Diode (LED) driver for Visible Light Communication (VLC). It also presentes
a state of the art review on VLC ...
Metodologia para coordenação e seletividade da proteção em sistemas de distribuição incluindo avaliação de confiabilidade
(Universidade Federal de Santa Maria, 2018-02-23)
The electric distribuition system is constantly evolving, in which new strategies,
methods and technologies are added to improve its functionality, examples of this are smart
grids and distributed generation. But these ...
Método de dimensionamento de sistemas autônomos fotovoltaicos de iluminação pública baseado na análise da dinâmica diária de geração e consumo
(Universidade Federal de Santa Maria, 2018-03-26)
This work presents a method for the analysis and sizing of autonomous photovoltaic systems applied in public lighting using LED lamps. To perform this sizing, daily production and consumption data are used, increasing the ...
Otimização do projeto dielétrico de transformadores de distribuição por meio de simulações em elementos finitos
(Universidade Federal de Santa Maria, 2018-02-26)
This work presents a methodology for optimization of the dielectric design of
distribution transformers by defining three constructive parameters of the
manufacturing process of the low and high voltage coils. Its main ...
Modelagem das curvas tempo x corrente de elos fusíveis do tipo expulsão por meio de redes neurais artificias
(Universidade Federal de Santa Maria, 2018-08-06)
Protection studies are essential to maintain the levels of energy supply in accordance with standards
imposed by regulatory agencies. Currently, this type of study is carried out through computational
tools. Therefore, ...
Desenvolvimento de estrutura de controle para paralelismo de inversores aplicados em fontes ininterruptas de energia
(Universidade Federal de Santa Maria, 2018-08-30)
This master's thesis proposes a control structure for inverters parallelism on uninterruptible power supply (UPS) modules with low line impedance characteristics. The structure is based on instantaneous current sharing ...
Alocação estocasticamente robusta de chaves automáticas em rede de distribuição de energia elétrica
(Universidade Federal de Santa Maria, 2018-06-28)
In distribution networks planning, proper selection of quantity and position of switches
provides a significant reduction in reliability indices and operating costs. For that,
historical failure data is used. However, ...
Análise em redução de processamento redundante de energia em conversores de dois estágios para iluminação Led
(Universidade Federal de Santa Maria, 2018-07-31)
This work presents mathematics analysis, simulation and experimental results for two of the isolated converters, the forward and flyback, related to its potential concerning the realization of the reduced redundant power ...
Metodologia para análise do balanço energético usando estimador de estados e medição em tempo real
(Universidade Federal de Santa Maria, 2018-07-26)
With the advent of smart grid, it is expected a new design for operation and planning of the electrical systems, changing the way how we manage and relate to the distribution systems. The term Smart Grid is used as an ...
Controle inteligente do despacho de geração distribuída para atendimento dos limites de demanda de uma microrrede
(Universidade Federal de Santa Maria, 2018-03-28)
The use of distributed generation (DG) allied to smart grids offers a series of benefits for the electrical system and, consequently, the society that makes use of it. Specifically in the economic and planning context, ...