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Itens para a visualização no momento 11-18 of 18
Estratégias de modulação para conversores multiníveis em cascata sob faltas
(Universidade Federal de Santa Maria, 2012-01-20)
Multilevel converters are being increasingly employed nowadays, specially in mediumand
high-voltage industrial applications. Even though these converters are able to
synthesize output line-to-line voltages with a high ...
Metodologia de projeto eletrotérmico de LEDs aplicada ao desenvolvimento de sistemas de iluminação pública
(Universidade Federal de Santa Maria, 2012-07-23)
This work presents an LED electrothermal design methodology applied to a street
lighting system. The methodology aims to provide indicatives of the optimal LED operating
point for lighting systems design, considering ...
Análise, projeto e implementação de um D-STATCOM para redes de distribuição monofásica
(Universidade Federal de Santa Maria, 2012-07-31)
This work analyzes a voltage regulator applied to low-voltage single-phase distribution networks, especially long distribution rural distribution lines with problems to comply with voltage level standards. This voltage ...
Modulador SI-ΣΔ cascata 2-2 empregando arquitetura de baixa distorção aplicado à conversão AD
(Universidade Federal de Santa Maria, 2012-03-16)
The increasing complexity of digital circuits forces the use of new technologies. New technologies
have the advantage of reducing the circuit size and power consumption coupled with
operation speed increasement. Most of ...
Análise das relações das tensões de entrada de inversores multiníveis híbridos conectados em cascata para minimizar a THD da tensão de saída
(Universidade Federal de Santa Maria, 2012-04-27)
This Master Thesis presents a study considering multilevel inverters formed from two and three level cascaded inverters.
The literature presents several papers on asymmetric multilevel inverters and most studies are related ...
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 ...
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 ...
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 ...