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Modelagem e acionamento de diodos orgânicos emissores de luz (OLEDs) para sistemas de iluminação
(Universidade Federal de Santa Maria, 2015-08-26)
This thesis presents the study and characterization of organic light-emitting diodes
(OLEDs) with the proposal of obtaining an equivalent model that is useful in the OLED driver
design and in lighting systems projects. ...
Novos métodos de estimação de estado multi-área com potencial aplicação em redes elétricas inteligentes
(Universidade Federal de Santa Maria, 2015-03-06)
The smart grid will enable a revolution in the way we manage and relates to the distribution networks through intelligent applications. For many of these applications, it is understood that one of the primary activities ...
Desenvolvimento de topologias com redução do processamento redundante de energia para acionamento de leds
(Universidade Federal de Santa Maria, 2015-08-26)
This work presents the research and development of a connection method for static converters,
called Optimized Cascade, which aims to reduce the redundant power processing in
multiple stage topologies for LED driving. ...
Modulação space vector para conversores multiníveis com células assimétricas em cascata sob condições de faltas
(Universidade Federal de Santa Maria, 2015-10-09)
This Thesis proposes a Space Vector Modulation for cascaded miltilevel converters with
asymmetric cells under normal conditions and with faults in the power cells, avoiding
converter saturation as much as possible. The ...
Combinação seletiva de métodos para previsão de demanda a curtíssimo prazo em tempo real
(Universidade Federal de Santa Maria, 2015-03-06)
In transforming the current electricity network, in a so called smart grid, demand forecasting
is relevant to processes such as demand management, demand response, distributed
generation, among others. For consumers, the ...
Controle robusto baseado em desigualdades matriciais lineares aplicado a inversores conectados à rede elétrica
(Universidade Federal de Santa Maria, 2015-04-24)
This work provides as a main contribution a procedure to design robust state feedback
current controllers applied to inverters connected to the grid by means of LCL filters,
providing results which comply with performance ...
Sistema eletrônico para lâmpadas fluorescentes de indução baseado na topologia sepic half-bridge bi-integrada com controle de intensidade luminosa por modulação de baixa frequência
(Universidade Federal de Santa Maria, 2015-06-15)
This master thesis presents the analysis and design of an electronic drive system for fluorescent induction lamps. This lighting technology, despite being patented since the 60s, is not widely diffused in the market context. ...
Impacto técnico e econômico do uso de microturbinas para geração de energia elétrica em aterros sanitários sobre os sistemas de distribuição
(Universidade Federal de Santa Maria, 2015-08-26)
The electricity generation in Brazil comes mainly from hydroelectric potential. Despite the importance of these sources, Brasil has several alternatives for electric power generation, such as those derived from biomass. ...
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 ...
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 ...