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Método heurístico para otimização do dimensionamento de uma microrrede de energia
(Universidade Federal de Santa Maria, 2021-02-12)
Microgrids are defined as a part of the energy distribution system, capable of operating
connected to the main network or isolated, presenting an energy generation and
storage system. It is extremely important to carry ...
Projeto de um nó LoRaWAN híbrido com repetidor embutido de baixo custo e baixo consumo de energia
(Universidade Federal de Santa Maria, 2020-09-23)
The Internet of Things (IoT) is a theme that has grown a lot, with this the LPWAN (Low
Power Wide Area Network) has gained space in the telecommunications market. In this
market related to IoT, the LoRa technology has ...
Avaliação do desempenho acústico das edificações para fins de financiamento imobiliário
(Universidade Federal de Santa Maria, 2013-02-28)
Most of the Brazilian habitation necessity is supplied by builds financed by real estate institutions. The
institutions receive as guarantee the own property financed. Those companies analyze the projects of
the enterprises ...
Contribuição ao estudo do conversor multinível híbrido em cascata monofásico empregado na interface entre fonte fotovoltaica, banco de baterias e rede elétrica.
(Universidade Federal de Santa Maria, 2017-08-30)
This master thesis presents an energy management strategy in order to eliminate power fluctuations
from a photovoltaic source through a single-phase cascade hybrid multilevel grid-tie
converter associated with a battery ...
Modelo de dinâmica de sistemas aplicado a integração de recursos energéticos distribuidos considerando a operação em uma microrrede
(Universidade Federal de Santa Maria, 2019-08-29)
The global electricity sector has undergone significant changes over the years, due to the search
for energy diversification and the advancement of technology. These changes are driven by the
demand to replace fossil ...
Metodologia para avaliação de transformadores de potência através de Health Index e modelo de envelhecimento
(Universidade Federal de Santa Maria, 2021-03-04)
The power transformers conditions assessment are essential for the management of this equipment,
allowing the identification of maintenance interventions or replacements demands, as well
as assisting in financial planning. ...
Metodologia de detecção e seleção de fases para faltas de alta impedância através da relação angular de componentes simétricas
(Universidade Federal de Santa Maria, 2021-01-28)
This paper proposes new detection and phase selection methods for high impedance faults in distribution networks. Both methods are based on a phase selection methodology developed for transmission lines, which was adapted ...
Análise de energia incidente em redes de distribuição: estimação, estratégias de mitigação e medidas de proteção
(Universidade Federal de Santa Maria, 2021-04-30)
An electric arc occurs when the air’s ionization is sufficient to allow the passage of electric current and arises from two or more conductors separated by a given spacing subjected to a short-circuit, either by improper ...
Diagnóstico de desequilíbrio de massa para rotores de aerogeradores utilizando máquina de vetores de suporte
(Universidade Federal de Santa Maria, 2021-02-26)
Condition monitoring systems (CMS) are essential to reduce costs in the wind
energy sector. This paper proposes a method based on Support Vector Machine (SVM)
to detect rotor mass imbalance for a multi-class problem, ...
Implantação e avaliação de infraestrutura avançada de medição de energia em uma instituição pública
(Universidade Federal de Santa Maria, 2020-02-14)
The electricity distribution system is becoming more complex, when compared to the transmission
and generation ones. However, the arrival of new technologies, such as distributed
generation and smart electricity grids, ...