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Contribuições ao estudo de conversores CC–CC com processamento parcial de energia aplicados a sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2017-12-18)
This work presents some conceptual and practical contributions about the use of series-regulated
DC/DC converters in multi-string photovoltaic systems, which have been presented in the literature
as capable of performing ...
Conversores multiníveis modulares: contribuições ao estudo e ao desenvolvimento de sistemas de controle distribuídos
(Universidade Federal de Santa Maria, 2017-10-05)
This doctoral thesis presents contributions to the study and development of distributed
control systems applied to the Modular Multilevel Converter (MMC) operating
with a high number of submodules (SMs), which is the ...
Estudo da hidratação e microestrutura de pastas de cimento Portland com adição de cinza de casca de arroz de baixo teor de carbono grafítico e sílica ativa
(Universidade Federal de Santa Maria, 2017-08-29)
Growing concern for sustainability has resulted in a search for alternative materials for
the cement industry to reduce its environmental impacts and achieve greater durability
of structures at lower costs. By partially ...
DIFMA: firewall distribuído com ênfase na interoperabilidade entre aplicações no contexto das redes elétricas inteligentes
(Universidade Federal de Santa Maria, 2017-08-16)
The Electric Power System (EPS) has been improved in recent years, aiming at the implementation
of Smart Grids (SG). For this, it is essential to integrate information technologies
and bidirectional communication networks ...
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 ...
Penetração de cloretos em concretos compostos com cinza de lodo de estação de tratamento de água em diferentes teores de adição
(Universidade Federal de Santa Maria, 2017-08-31)
The increasing population growth has been responsible for the increasing demand for drinking water and, therefore, an increase in the amount of waste generated in Water Treatment Stations. In the vast majority of municipalities, ...
Modelo para avaliação estratégica de redes de cooperação
(Universidade Federal de Santa Maria, 2018-01-12)
Globalization has caused an increase in market competition; because of this, in the last decades, firms have been looking for different ways to survive and generate high profits. Strategic alliances have become popular ...
Ferramenta para análise do custo de sistemas de pisos com diferentes classificações de desempenho acústico
(Universidade Federal de Santa Maria, 2017-08-30)
The architecture of Brazilian buildings has been presenting constant modifications in the construction techniques and materials used, which reflect directly in the comfort of the buildings. Such changes may be beneficial ...
Influência do sistema de cobertura no comportamento térmico de edificações multifamiliares na Zona Bioclimática Brasileira 2
(Universidade Federal de Santa Maria, 2017-08-30)
In search of thermal comfort with lower energy consumption, research has been carried out seeking to reduce the thermal load of buildings. In this context, the roof system is evidenced, as it is mainly responsible for the ...
Controle ressonante aplicado à redução de capacitância de barramento em conversores com estágios de potência integrados para alimentação de LEDs a partir da rede CA
(Universidade Federal de Santa Maria, 2017-08-18)
This thesis presents a new methodology to reduce bus capacitors in electronic systems with integrated power stages, applied to the LED driver. This reduction is proposed aiming to replace the traditional electrolytic ...