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Análise teórica e experimental da transmissão de forças na junção de aduelas pré-moldadas de pontes protendidas
(Universidade Federal de Santa Maria, 2020-04-07)
There is a growing demand for bridges with prestressed precast segments, thus, the need for further study and development of this system is evident. Currently, these bridges use connections between segments by joints with ...
Estudo e desenvolvimento de uma fonte CA de potência híbrida baseada em conversor multinível modular
(Universidade Federal de Santa Maria, 2013-08-30)
This Master Thesis presents an AC Power Source (ACPS) study contribution through the
proposal, design and implementation of a novel hybrid ACPS topology. In general, the
proposed hybrid topology is defined from the series ...
Estratégias de modulação para conversores multiníveis com capacitores flutuantes
(Universidade Federal de Santa Maria, 2019-01-30)
This Thesis contributes to the modulation of the multi-level three-phase converter with
flying capacitors, for which simulations were performed to validate three different
modulation algorithms. The first one is a phase ...
Efeito de reservatório de aproveitameto de água da chuva sobre redes de drenagem pluvial
(Universidade Federal de Santa Maria, 2013-08-28)
The urban growth and the disordered occupation of cities have increased the frequency and severity of
flooding in urban areas, which occur mainly due to the modification on rainwater natural infiltration, as a result
of ...
Análise dinâmica de torres metálicas treliçadas estaiadas e autoportantes de linhas de transmissão submetidas à ruptura de cabos
(Universidade Federal de Santa Maria, 2021-06-25)
The reliability of the electric power transmission systems is due, in addition to other factors, to the structural stability of the supports that hold the conductive cables and lightning rods along the transmission lines. ...
Psicologia ambiental: uma revisão sobre a importância do comportamento pró-ambiental
(Universidade Federal de Santa Maria, 2022)
Considering human behavior as responsible for several of today's environmental problems, the present work aims to deepen the understanding of pro-environmental behavior through a bibliographic review of scientific productions ...
Identificação automática dos parâmetros elétricos de motores de indução trifásicos
(Universidade Federal de Santa Maria, 2008-08-26)
This work presents an algorithm able to identify all electrical parameters of three
phase induction motor, with discrete realization, using a fixe-point digital signal
processor based platform. Some techniques presents ...
Análise da estabilidade de pequenas centrias hidrelétricas em operação isolada
(Universidade Federal de Santa Maria, 2016-03-21)
Islanding occurs when a part of the electrical system is supplied solely by a unit or group of distributed generators isolated from the main electrical network. When the center of Distributed Generation (DG) operates ...
Desenvolvimento de um sistema de controle e supervisão de inversor para turbinas eólicas
(Universidade Federal de Santa Maria, 2017-01-20)
The worldwide interest in renewable energy has increased, with a large emphasis on wind energy. In this sense, this work presents the supervision and control of an inverter for wind turbines. It uses a three-phase PWM ...
Otimização de operação dos meios básicos de controle de tensão em sistemas de distribuição
(Universidade Federal de Santa Maria, 2005-06-17)
This dissertation presents methods and algorithms to increase use efficiency of basic voltage control equipment on power distribution systems and also models for secondary distribution networks. This basic voltage control ...