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Metodologia para análise da coordenação e seletividade de dispositivos de proteção durante reconfigurações de redes de distribuição
(Universidade Federal de Santa Maria, 2014-03-28)
With the emergence of the concept of Smart Grid (SG), the Power Distribution Systems are undergoing major changes in the way it is operated, studied and analyzed. The breakthrough technology of measurement, automation, ...
Proteção de transformadores de potência eclassificação de transitórios elétricos por meio da transformada wavelet discreta
(Universidade Federal de Santa Maria, 2014-02-20)
This dissertation presents the development of an algorithm for classifying
electrical transients in power transformers for protection. Initially the main transient
involving power transformers were analyzed, with a special ...
Proposta de um sistema de proteção para preservar a coordenação entre religadores e elos fusíveis de sistemas de distribuição na presença de geração distribuída
(Universidade Federal de Santa Maria, 2013-08-11)
This work presents a novel recloser-fuse coordination protection for distributed generation
systems based on the use of RMS current comparators. In real-time, these comparators are
responsible for analyzing current magnitude ...
Metodologia para análise da tarifa branca e da geração distribuída de pequeno porte nos consumidores residenciais de baixa tensão
(Universidade Federal de Santa Maria, 2014-02-28)
This Master s Dissertation presents the development of a methodology that analyzes the impact of the White Tariff considering the distributed generation to low voltage residential consumers. The White Tariff has the aim ...
Estimação fasorial aplicada a relés de proteção numéricos utilizando os métodos de ajuste de curvas e redes neurais artificiais
(Universidade Federal de Santa Maria, 2014-02-21)
This dissertation proposes two methodologies for the phasor estimation on protective relays in Electrical Power Systems. Firstly, a theoretical introduction of signal processing, the structure of a protective relay and ...
Previsão de tensão em sistemas de distribuição considerando as possibilidades das redes inteligentes
(Universidade Federal de Santa Maria, 2012-11-09)
With the deployment of Smart Grids, the voltage quality has a new focus, and the ANEEL (National Agency of Electric Energy), Brazilian regulator organ, is able to improve its supervision activity. The electric energy ...
Alocação e dimensionamento de limitadores de corrente de falta para minimizar a influência de fontes de geração distribuída na proteção de sistemas elétricos
(Universidade Federal de Santa Maria, 2012-07-27)
This dissertation presents the development of methodologies that aim to reduce the effect of distributed generation sources in the protection of electric power systems. First were analyzed problems associated with integration ...
Análise e projeto de uma topologia de dois estágios otimizada aplicada à iluminação pública com leds
(Universidade Federal de Santa Maria, 2012-07-10)
This work presents the analysis and implementation of a connection between two power converters, applied to street lighting with LEDs. This connection is called optimized
cascade. The main idea of this connection is the ...
Análise e projeto do conversor buck intercalado para alimentação de lâmpadas de descarga em alta pressão de alta potência
(Universidade Federal de Santa Maria, 2012-02-29)
This work presents a detailed analysis about the interleaved buck converter applied
to electronic ballasts to supply high power HID lamps, assuming the input voltage as a
PFC stage output.
As the output capacitor has a ...
Projeto e desenvolvimento de um sistema de gerenciamento remoto sem fio aplicado a iluminação
(Universidade Federal de Santa Maria, 2012-08-17)
Today's light sources are expanding the application field of lighting systems for decorative,
commercial and artistic purposes, in many areas, such as parks, gardens or parking.
This paper presents the development of a ...