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Avaliação e caracterização dos sedimentos transportados no Rio Vacacaí Mirim
(Universidade Federal de Santa Maria, 2013-09-11)
The processes of erosion and sedimentation in a watershed cause numerous problems.
Knowledge of the amount of sediment transported by rivers is really important to planning
and using water resources, since the damage ...
Caracterização das condições acústicas de salas de aula destinadas ao ensino da música na educação básica
(Universidade Federal de Santa Maria, 2012-12-31)
The acoustic inadequacy in an environment for teaching and study of music can trigger problems in the process of learning music, because the music content or the speech itself, can be modified, creating possibilities of ...
Projeto e desenvolvimento de um microinversor buck de elevado rendimento conectado à rede elétrica com filtro LCL
(Universidade Federal de Santa Maria, 2018-08-06)
Micro-inverters are small single-phase photovoltaic power generation modules that connect directly to
a photovoltaic panel and the electrical grid, which typically consist of a DC-DC stage and a DC-AC
stage. The topology ...
Análise do carregamento de veículos elétricos na curva de carga do transformador de distribuição
(Universidade Federal de Santa Maria, 2017-12-04)
The objective of this dissertation is to evaluate the insertion of Electric Vehicles (EVs) on the distribution system. Motivated by the shortage of deterministic data regarding the process of charging EVs batteries, a ...
Indicador de vulnerabilidade operacional para priorização e substituição de transformadores de potência em subestações
(Universidade Federal de Santa Maria, 2018-02-19)
This thesis presents a new methodology for the classification and substitution of power
transformers in substations. The thesis proposes the use of the Operational Vulnerability
Indicator (OVI), which consists of two ...
Análise e desenvolvimento de sistema eletrônico de iluminação com LEDs de potência empregando conversor ressonante e indutor variável
(Universidade Federal de Santa Maria, 2017-08-25)
An analysis and design of a power control stage topology for an LED (Light Emitting Diode) driver for lighting is presented in this work. The circuit is based on the resonant topology LLC-HB – resonant filter LLC type fed ...
Estratégias multimalhas para controle de corrente de inversores conectados à rede por meio do filtro LCL
(Universidade Federal de Santa Maria, 2018-02-26)
This master thesis presents contributions to the study and development of current
control of the grid-tied inverter through an LCL filter, by using multiloop control strategies.
In the first proposed scheme, the inner ...
Aplicação do método de análise hierárquica AHP para a seleção de tecnologias limpas na geração de energia em uma termelétrica a carvão mineral
(Universidade Federal de Santa Maria, 2017-12-15)
The expansion of energy supply is fundamental for the economic and social development of a country, influencing decisively the infrastructure of the production sectors. Coal is the main source of energy in the world. China, ...
Análise incremental construtiva em estruturas de aço considerando a interação solo-estrutura
(Universidade Federal de Santa Maria, 2017-08-30)
The growth of steel as structural material and the development of more advanced computational programs, coupled with the advancement of technology, allow the numerical modeling and analysis of steel building structures to ...
Uso de abordagem heurística para o problema do quadro de horários e alocação de salas de aula
(Universidade Federal de Santa Maria, 2018-09-14)
This study is about the problem to elaborate the teachers’ timetabling and the classroom assignment in Instituto Federal Farroupilha - Campus Avançado Uruguaiana. This task is already known because of its complexity and ...