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Mapeamento e priorização de fontes de geração distribuída como suporte ao novo planejamento da distribuição
(Universidade Federal de Santa Maria, 2015-03-16)
Despite the growing movement of the share of renewable sources in the global energy matrix, the weight of sources such as natural gas, coal and petroleum derivatives is considerably significant. In this respect, the need ...
Instrumentação para levantamento de dados do perfil geotérmico superficial visando a troca sustentável de calor
(Universidade Federal de Santa Maria, 2014-10-10)
Nowadays, the rational energy consumption is one of the main concerns of the whole
modern society. Thus, this dissertation contributes to improve energy efficiency, increase the
renewable energy sources and to develop ...
Concepção de um circuito energy harvesting aplicado a redes de sensores sem fio para sistemas de iluminação
(Universidade Federal de Santa Maria, 2014-08-29)
This thesis aims to present the design and development of an Energy Harvesting (EH) circuit applied to wireless sensor networks (WSN), especially those that perform functions in lighting systems, such as monitoring or ...
Reconfiguração de redes de distribuição em situações de contingências considerando operação ilhada de PCH
(Universidade Federal de Santa Maria, 2014-08-22)
One of the main concerns of the power utilities is secure, continuously supplying electric power to customers, thus meeting so satisfy these as to regulatory requirements. Thus, the proposed paper presents a method of ...
Controlador por modos deslizantes de segunda ordem aplicado a um compensador síncrono estático de distribuição
(Universidade Federal de Santa Maria, 2015-02-13)
In the recent years we have seen that due scarcity of fossil fuels it becomes increasingly
important the improvement of renewable energy such as micro hydro generation, solar energy,
wind power and others.
The reason for ...
Reconhecimento não-intrusivo de equipamentos elétricos empregando projeção vetorial
(Universidade Federal de Santa Maria, 2016-02-19)
Electricity consumption in homes and workplaces has been growing steadily over the
decades and attitudes to reduce these costs should be taken. An interesting solution is to provide
to electricity users, and also to the ...
Proteção contra perda de excitação em geradores síncronos: uma nova proposta utilizando o método do cálculo contínuo da impedância aparente
(Universidade Federal de Santa Maria, 2015-10-16)
This work presents a new Loss-of-Excitation in synchronous generators protection scheme based on the Continuous Apparent Impedance Calculation. This methodology aiming to improve security and dependability to the ANSI 40 ...
Método de carga para banco de baterias em fontes ininterruptas de energia que busca garantir o estado de carga completa: corrente pulsada modificado
(Universidade Federal de Santa Maria, 2015-02-15)
This Master s Dissertation is proposes the development of a charge management system of a bank of 16 lead-acid batteries with 7Ah load capacity, commonly used in Uninterruptible Power Supplies (UPS). This system aims to ...
Comparação de funções objetivo para seleção de PSS pelo amortecimento de oscilações em sistemas multimáquinas
(Universidade Federal de Santa Maria, 2015-12-15)
Small disturbances occur continuously in electrical systems mainly due to load and generation
variations. This ends up causing low frequency voltage fluctuations that are usually observed
in systems whose lines have weak ...
Sistema RGB com controle de fluxo luminoso e redução de variação cromática
(Universidade Federal de Santa Maria, 2014-07-10)
This work proposes a control methodology of luminous flux through independent sink temperature and current applied to red, green and blue LEDs. The main characteristics of solid-state lighting and LEDs themselves are ...