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Itens para a visualização no momento 221-228 of 228
Reconfiguração de redes de distribuição considerando multivariáveis e geração distribuída
(Universidade Federal de Santa Maria, 2014-02-28)
The new design of electric power system, called Smart Grid, has emerged as a new challenge
especially for power distribution networks, which need to promote greater functionality such
as real-time monitoring of the ...
Modelagem e controle de um reator eletrônico para lâmpadas HPS baseado na conexão diferencial de conversores CC
(Universidade Federal de Santa Maria, 2012-02-28)
This paper presents the development of an electronic ballast for high intensity discharge lamps, using the differential connection technique applied to Flyback converters. The power factor correction stage was implemented ...
Método de controle e supervisão para grupos motores geradores com velocidade variável
(Universidade Federal de Santa Maria, 2013-02-27)
Motor generator sets are widely used to generate electricity in case of grid failure or to
supply part of the demand for commercial and industrial consumers. The vast majority of
motor generator sets work with constant ...
Projeto e validação experimental de um controlador robusto H2 aplicado a conversores Boost
(Universidade Federal de Santa Maria, 2011-07-25)
This dissertation presents as the main contribution the design and experimental
validation of a robust H2 controller applied to boost converters with variations on the
parameters load resistance, input voltage and operating ...
Metodologia para despacho de fontes de GD a biogás em redes de distribuição utilizando lógica fuzzy
(Universidade Federal de Santa Maria, 2012-03-19)
The aim of this work is determine the most appropriated period for connection of a
particular generation source fueled by biogas on a distribution network. The biogas is
produced through anaerobic reactions that occur ...
Estudo e implementação de uma luminária de iluminação pública à base de LEDs
(Universidade Federal de Santa Maria, 2013-02-18)
This work presents a study for the design and implementation of a LED Street
light Luminaire. It shows the necessary characteristics for the proposed fixture replace
the traditional models with High Pressure Sodium lamps ...
Conversor flyback modificado para alimentação de lâmpadas de descarga em alta pressão: projeto, modelagem e controle
(Universidade Federal de Santa Maria, 2012-03-01)
This dissertation consists of the design of an electronic ballast to drive high pressure discharge (HID) lamps, focusing on low power applcations. An innovative modified yback conveter is proposed as main part of an ...
Desenvolvimento de uma topologia híbrida a três fios para regulação de tensão aplicada em microcentrais hidrelétricas
(Universidade Federal de Santa Maria, 2013-01-25)
This dissertation presents the study of a three-wire hibrid topology for voltage
regulation for micro-hydroelectric generators that use self-excited induction in isolated
operation. Initially, a literature review is ...