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Metodologia para detecção e classificação de faltas em transformadores de potência por meio da Transformada Wavelet Discreta
(Universidade Federal de Santa Maria, 2018-08-28)
This thesis presents the development of a methodology for the detection and
classification of electrical transients in power transformers, for protection purposes. For this,
we analyzed several electrical transients ...
Controle digital aplicado a um sistema fotovoltaico multistring autônomo
(Universidade Federal de Santa Maria, 2011-06-17)
This work presents the design of a stand-alone photovoltaic system based on the
multi-string topology. In this topology, two PV panel arrays are connected to a DC bus
through cascaded boost converters. A bidirectional ...
Análise de estratégias do erro de controle de área utilizando o software Anatem
(Universidade Federal de Santa Maria, 2018-07-11)
A power system uses control mechanisms to supply the continuous variations in demand, without difference between generation and demand and to deliver energy with minimum requirements of frequency, voltage and reliability. ...
Sistema fotovoltaico autônomo utilizando configuração multi-string e inversor multinível
(Universidade Federal de Santa Maria, 2011-08-11)
The continuous economic development of many countries and the emerging environmental
issues (gas emissions and the greenhouse effect) observed in the last decades forced an intense
research in renewable energy sources. ...
Projeto e implementação de um conversor módulo integrado para conexão de geração fotovoltaica à rede elétrica
(Universidade Federal de Santa Maria, 2018-02-27)
This Master Thesis presents the analysis, design and implementation of a grid-connected
module integrated converter, or, simply, microinverter, for photovoltaic applications. The
system is composed of two stages: a ...
Metodologia de solução aplicada ao planejamento da expansão de sistemas de distribuição de energia elétrica
(Universidade Federal de Santa Maria, 2016-07-08)
The technological renewal, aligned with the regulation of initiatives that promotes SmartGrid concept implementation has caused significant changes in the traditional dynamics of expansion planning and solution of the ...
Reconfiguração automáticas das redes de distribuição de energia elétrica com monitoramento em tempo real
(Universidade Federal de Santa Maria, 2013-09-13)
In normal operation, the reconfiguration of distribution network can reduce losses,
balance loads and improve quality indicators. The increasing use of remote controlled
equipment in power systems leads the development ...
Uma metodologia de otimização para sistemas de iluminação que empregam LEDs
(Universidade Federal de Santa Maria, 2015-03-09)
This work presents an optimization methodology for lighting systems that employ LED.
Initially, this work brings a calculation methodology capable of obtaining a thermal resistance
of heat sink from their dimensions of ...
Controle escalar sensorless para sistemas de conversão de energia eólica com gerador síncrono de ímãs permanentes
(Universidade Federal de Santa Maria, 2015-08-21)
This master thesis proposes a control method of scalar direct torque control and
a technique of current control to maximize the aerodynamic efficiency of wind energy
conversion systems (WECS) using permanent magnets ...
Análise da viabilidade econômica da implementação de módulos fotovoltaicos em um consumidor do tipo A4
(Universidade Federal de Santa Maria, 2018-12-14)
The growing concern with the preservation of the environment and the search for the
diversification of the electric matrix is on the rise in Brazil and in the world. These factors,
coupled with the increased demand for ...