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Itens para a visualização no momento 21-30 of 44
Análise de conversor Ca–Ca monofásico rebaixador de topologia clássica com solução do problema de comutação
(Universidade Federal de Santa Maria, 2019-07-11)
In this paper the design and losses analysis on the semiconductors of a PWM chopper
single-phase converter are presented. It steps down a voltage of 220 Volts at the source
to 127 Volts at the load. The ordering of the ...
Simulação e análise de esforços eletromecânicos em transformadores elétricos utilizando o método de elementos finitos
(Universidade Federal de Santa Maria, 2019-07-01)
Due the increasing demand of electrical energy in the power electric system, the short-circuit
level become larger each day, taking the equipment connected to the system to critical
conditions. These conditions affect ...
Análise de técnicas de equalização de canal para SC-FDMA
(Universidade Federal de Santa Maria, 2019-07-12)
As for the main problems found in wireless digital communication systems, the multipath phe-
nomenon stands out, as it could cause severe distortion on the transmitted signal, possibly com-
promising the system’s whole ...
Obtenção de parâmetros dinâmicos da máquina síncrona de polos salientes através de ensaios de resposta em frequência
(Universidade Federal de Santa Maria, 2019-07-09)
In this paper, initially on time domain, the constructive and electrical characteristics of the
synchronous machine will be analyzed in order to define the equations that represents the
dynamic behavior of synchronous ...
Análise da viabilidade econômica na adesão de tarifa branca em consumidores residenciais de forma independente e associada à geração distribuída fotovoltaica
(Universidade Federal de Santa Maria, 2019-07-12)
This paper presents an economic feasibility study on migration or adhesion to the “White Fare”
for residential consumers, based on a comparative analysis with the conventional fare, where
the preservation of consumption ...
Análise de controladores de corrente através de Hardware in the Loop
(Universidade Federal de Santa Maria, 2019-07-15)
This work is based in the comparison between three current controllers. Several tests were car-
ried out with the same parameters for a fair and technical comparison
Análise de transferência de ondulação de baixa frequência para os conversores SEPIC e ZETA para drivers de led
(Universidade Federal de Santa Maria, 2019-07-18)
This paper presents the design, simulation and development of two topologies for
converters with the objective of developing a mathematical analysis describing the behavior
of the low frequency ripple transfer between ...
Simulação de um quadro de Epstein empregando o método de elementos finitos
(Universidade Federal de Santa Maria, 2019-06-11)
The increasing consumption of electric energy leads to the need to increase its
generation, which implies concerns about impacts on the environment. Renewable energies
are ways to get around these facts. However, there ...
Diagnóstico do sistema elétrico e eficiência energética aplicada a uma instalação pública hospitalar
(Universidade Federal de Santa Maria, 2019-06-17)
The specified work aims for a diagnosis of the electrical system and measures for energy efficiency coverage. To accomplish such, the four-stage algorithm must be followed: identify,
analyze, modify and follow the ...
Estudo e análise de antenas planares para aplicações em Cubesats
(Universidade Federal de Santa Maria, 2019-07-10)
This work presents an analysis of the current antenna system of NANOSATC-BR series satellites
and the proposal of an alternative system using planar antennas. The NANOSATC-BR
Program, Development of Cubesats aims to ...