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Topologia híbrida e métodos de controle aplicados à regulação de tensão de geradores de indução auto-excitados
(Universidade Federal de Santa Maria, 2016-05-23)
This doctoral thesis deals with the study, analysis and development of a new hybrid
topology for voltage regulation of stand-alone microgeneration systems employing
self-excited induction generators. The hybrid topology ...
Detecção de ilhamento em sistemas de distribuição com geração síncrona distribuída
(Universidade Federal de Santa Maria, 2016-02-26)
Nowadays due to the increase of renewable energy sources, Distributed Generations (DGs) assumed an important role in distribution and sub transmission systems. However, abnormal operating conditions of the distribution ...
Atividade florestal no contexto da fumicultura: oportunidade de desenvolvimento regional, diversificação, geração de emprego e renda
(Universidade Federal de Santa Maria, 2010-03-25)
The general objective of this paper is to demonstrate that forests and forestry activities are compatible with the real estate structure of small rural holdings, turning into a relevant subsistence factor, while providing ...
Crescimento de Podocarpus lamberti Klotzsch ex Endl. em duas regiões fitogeográficas no estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2010-05-06)
In order to study the growth and the relationship with environmental variables of Podocarpus lambertii Klotzsch ex Endl. in two phyto-geographical regions of Rio Grande
do Sul state, over hill fields (São Francisco de ...
Efeito do desbaste nos parâmetros dendrométricos e na qualidade da madeira de Eucalyptus grandis W. Hill ex Maiden
(Universidade Federal de Santa Maria, 2010-03-05)
This study was undertaken to evaluate the effect of thinning in the dendrometric parameters and wood quality of the Eucalyptus grandis at 18 years of age. There was analyzed a thinning experiment, located in the northern ...
Espectrorradiometria do visível e infravermelho próximo em povoamento de Eucalyptus grandis W. Hill ex Maiden
(Universidade Federal de Santa Maria, 2010-04-20)
Aiming to develop studies relating laboratory spectroradiometry with macro and micronutrients contents of vegetative materials of forest populations of Eucalyptus grandis W Hill ex Maiden, of different ages, an experimental ...
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 ...