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Itens para a visualização no momento 91-100 of 100
Alocação de canais para roteamento geográfico em redes de sensores e atuadores sem fio empregando a teoria dos jogos
(Universidade Federal de Santa Maria, 2012-05-25)
Wireless sensor and actuator networks are expected to grow quickly in size due to the
decreasing cost of nodes. For such large scale networks, the geographic routing algorithm
is a suitable approach. It finds a route for ...
Seleção de sistemas de geração de energia elétrica a partir de resíduos sólidos urbanos: uma abordagem com a lógica difusa
(Universidade Federal de Santa Maria, 2012-06-19)
Sustainability is becoming a major driving force in energy policy, leading to the development of different strategies and projects. Many of these strategies are related to the application of novel methodologies for selecting ...
Modelagem estocástica em usinas virtuais de energia utilizando transformada de incerteza
(Universidade Federal de Santa Maria, 2019-12-19)
The increase in distributed generation (DG) participation is a reality, influencing the way it
generates, distributes and consumes electricity. Virtual Power Plant (VPP) will play an
important role in integrating ...
Metodologia para geração e uso de energia elétrica de fontes renováveis com foco em tecnologias disruptivas e valores socioculturais locais
(Universidade Federal de Santa Maria, 2018-08-24)
This thesis was carried out with the purpose of creating a methodology to define the composition of the local energy use and to generate electric energy through the complementarity of the sources of renewable energies, ...
Estimação da seção em falta e processamento de alarmes em sistemas de potência utilizando um sistema híbrido fundamentado na heurística construtiva e na programação inteira
(Universidade Federal de Santa Maria, 2012-09-21)
This work proposes a methodology which is able to accomplish alarms processing and to
estimate fault section in electrical power systems. The purpose is to filter alarms generated
during a shutdown and indicate which ...
Controle adaptativo de corrente aplicado a conversores estáticos conectados à rede elétrica
(Universidade Federal de Santa Maria, 2013-02-28)
This thesis addresses the design of adaptive current controllers applied for voltagesource
grid-connected converters with LCL-filter. Due to the grid equivalent impedance
uncertainty and/or variation at the point of ...
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 ...
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 ...
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 ...
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 ...