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Contribuições ao projeto de controladores robustos a variações paramétricas aplicados a conversores conectados à rede
(Universidade Federal de Santa Maria, 2021-05-12)
This Ph.D. thesis provides contributions to the design of robust current controllers
for grid-connected converters, including: i) a time-varying model to deal with the
magnetic soft saturation in the filter inductors and ...
Controle hierárquico distribuído com separação de atribuições para paralelismo de UPS
(Universidade Federal de Santa Maria, 2021-06-19)
This work presents a distributed hierarchical control strategy applied to the parallelism
of UPSs. A dynamic approach with separation of concerns is proposed for the
secondary control, where a named grid forming inverter ...
Análise da estabilidade e controle de conversores CC-CC conectados em cascata
(Universidade Federal de Santa Maria, 2020-08-28)
The need to use renewable energy sources has driven the use of distributed energy generation systems. This type of system is formed by several interconnected stages that can consist of filters, converters, inverters, among ...
Modelagem eletrotérmica e caracterização de elementos parasitas de placas de circuito impresso de conversores estáticos CC/CC
(Universidade Federal de Santa Maria, 2021-08-11)
This doctoral thesis presents the development of an analythical method to characterize
the parasitic elements and surface temperatures in a synchronous boost power converter.
Initially is presented the bibliography review ...
Sistema de gerenciamento do armazenamento de energia residencial perante eventos meteorológicos severos
(Universidade Federal de Santa Maria, 2021-01-27)
Home energy management systems operating with storage systems in markets with differentiated
tariff, should identify ideal solutions for transacting stored energy with the electricity
grid, minimizing customer costs. On ...
Uma arquitetura de comunicação com mecanismos para atendimento dos requisitos das redes elétricas inteligentes rurais
(Universidade Federal de Santa Maria, 2020-02-19)
The current transformation scenario in power distribution networks signals the need for alternative solutions in communication systems employed in making them intelligent. As a premise, these alternatives should be easy ...
Sistema autônomo de sensoriamento remoto espaço-temporal do céu por imagens e sua aplicação em sistemas distribuídos de energia.
(Universidade Federal de Santa Maria, 2020-12-17)
Cloud cover instability is the main impact and uncertainty factor on the forecast of energy generated in photovoltaic systems. Establishing reliable metrics for large-scale photovoltaic (PV) power forecasting models while ...
Requisitos dinâmicos de controle para o estágio de conversão C.C.-C.C. aplicado em sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2020-11-26)
Photovoltaic systems (PVs), in their usual condition, are controlled to track the maximum power point (MPP) in a natural solar dynamic. However, with the cheapness of solar energy and its integration with the most diverse ...
Metodologia para restabelecimento parcialmente dinâmico de energia elétrica em sistemas de distribuição com possibilidade de operação ilhada de microrredes
(Universidade Federal de Santa Maria, 2021-01-18)
This study presents a decision-making model for the dynamic reconfiguration of
distribution networks after contingency situations based on formulations of the selfhealing
problem with islanding. This work develops a ...
Concepção e análise de estratégias de gerenciamento de potência aplicadas ao controle de nanorredes C.C. com barramentos interconectados
(Universidade Federal de Santa Maria, 2021-12-13)
This thesis proposes the conception and analysis of power management strategies applied to the control of multiple buses dc nanogrids. Nanogrids are small-scale commercial and residential prosumer electrical installations ...