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Metodologia para análise técnica e econômica para atendimento de consumidores rurais incluindo GD
(Universidade Federal de Santa Maria, 2017-09-25)
This work presents a methodology for technical and economic analysis for the attendance of residential loads, with different demands and located in the rural area, with the use of distributed generation sources that can ...
Lógica fuzzy para avaliação de eficiência energética em sistemas de irrigação de lavouras de arroz
(Universidade Federal de Santa Maria, 2017-03-24)
Energy efficiency plays an important role in electric power systems, since a small percentage increment in efficiency may lead to significant financial and energy savings. In agricultural-based economy countries, large ...
Estudo comparativo entre semicondutores de silício e nitreto de gálio em circuitos de acionamento de leds
(Universidade Federal de Santa Maria, 2017-03-03)
This dissertation presents a comparative study about the performance of silicon (Si) and gallium nitride (GaN) semiconductors in drivers for light emitting diodes. Hereby, it is expected to provide the theoretical background ...
Avaliação da dinâmica de nuvens e do impacto em redes de distribuição com grande participação de geração fotovoltaica
(Universidade Federal de Santa Maria, 2017-03-03)
The search for a more diverse energy matrix, to decrease the fossil fuel consumption com-bined with the enhance concern of environmental impacts results in an increasing interest on the installation of distributed generators. ...
Contribuição ao estudo de técnicas de acionamento e controle aplicadas ao gerador de relutância variável
(Universidade Federal de Santa Maria, 2017-03-06)
This master thesis presents the study of a generation system based on switched
reluctance generators. This machine presents as characteristics simple structure, mechanical
robustness, wide range of speed, low cost, high ...
Análise do impacto da manutenção em sistemas de distribuição de energia elétrica
(Universidade Federal de Santa Maria, 2017-03-01)
The new models of distribution concession contracts brought news to electric power concessionaires. By linking the renewal of concessions to the quality of service, in the midst of a period of national financial crisis, ...
Seleção multicriterial do tipo de minigeração distribuída usando casca de arroz
(Universidade Federal de Santa Maria, 2017-05-05)
The growing emphasis on conserving the environment associated with dependence on fossil fuels has stimulated the development and use of biomass as a source of renewable energy. Among the bioenergy alternatives is the rice ...
Metodologia para análise da influência de pequenas centrais de geração síncrona na margem de estabilidade de tensão
(Universidade Federal de Santa Maria, 2017-03-13)
The insertion of Distributed Generation has become a strong attraction due to its characteristic advantages, such as the reduction of losses in the energy transportation due to the lack of extensive transmission lines, ...
Otimização, seleção e apontamento de arranjos lineares de antenas através da técnica de otimização por enxame de partículas
(Universidade Federal de Santa Maria, 2017-02-24)
The Particle Swarm Optimization Technique has been widely studied by researchers,
since they act as a stochastic optimization process which can be applied in many areas, for
instance in electromagnetism. Researches have ...
Modelagem e comparação da potência elétrica e do coeficiente de potência de turbinas magnus segundo o comportamento dos perfis cilíndricos
(Universidade Federal de Santa Maria, 2017-02-20)
This thesis presents the model of Magnus turbines based on the forces produced by the cylindrical airfoils, resulting in the curves of net mechanical power and power coefficient, besides demonstrating the effects of the ...