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Metodologia para modelagem de transformadores de potencial indutivo e capacitivos para estudos de transitórios em altas frequências
(Universidade Federal de Santa Maria, 2015-11-13)
This dissertation proposes a modeling methodology for Inductive and Capacitive Voltage Transformers (IVT and CVT) for high-frequency electrical transients analysis, up to 3 MHz. The model construction starts from the VT s ...
Estudo comparativo entre o condicionamento de ar geotérmico e o convencional e suas perspectivas para o sistema elétrico nacional
(Universidade Federal de Santa Maria, 2015-06-03)
This dissertation deals with a comparison between energy consumption of conventional air conditioning and the surface geothermal conditioning for room environments.
Studies have been conducted about soil constitution, ...
Planejamento da expansão do sistema de distribuição através da simulação de alternativas e análise multicritério
(Universidade Federal de Santa Maria, 2015-09-23)
The Decision-making in the activities in the electricity sector is an exercise considered indispensable to achieve the strategic objectives of the companies, especially with regard to medium and large investments aiming ...
Desenvolvimento de um inversor fotovoltaico trifásico não isolado conectado à rede elétrica
(Universidade Federal de Santa Maria, 2015-03-09)
This Master Thesis presents the development of a grid-connected transformerless
three-phase photovoltaic inverter. The Neutral Point Clamped (NPC) three-level inverter was
chosen for implementation. The grid connection ...
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 ...