Buscar
Mostrando ítems 131-140 de 1849
Fonte ininterrupta de energia trifásica de alto desempenho sem transformador com dupla funcionalidade do estágio de entrada e sistema de controle digital
(Universidade Federal de Santa Maria, 2016-07-21)
This master s thesis proposes a three-phase transformerless double-conversion UPS with digital control system and reduced overall cost. The topology is composed of an input stage, a battery bank, an inverter, an auxiliary ...
Circuito auxiliar para equilíbrio da tensão e redução da corrente do ponto central do barramento CC aplicado a uma UPS sem transformador
(Universidade Federal de Santa Maria, 2016-07-21)
This work proposes the use of an auxiliary circuit to perform the voltage balancing and reduce the low frequency currents of the DC Bus center point of a three-phase transformerless UPS. The Bus voltage unbalance may occur ...
Desenvolvimento de um sistema de aquisição de dados e monitoramento para o diagnóstico de centrais de geração fotovoltaica
(Universidade Federal de Santa Maria, 2016-07-27)
This master thesis presents a data acquisition and monitoring system for photovoltaic solar generation
plants. The energy produced by photovoltaic systems depends on several factors, such
as: array settings, weather ...
Metodologia detalhada para rastreadores solares automatizados de dois eixos em sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2016-09-06)
The search for diversity of energy sources in the world is one of the challenges that are driving
research to fill this demand with alternative energy sources. So we have the need to explore
alternative and renewable ...
Metodologia para previsão de carga e geração no horizonte de curtíssimo prazo
(Universidade Federal de Santa Maria, 2016-08-31)
Load forecasting is a very important activity on electric power system operation and planning, because many studies on electricity sector depend on future behavior of the system, requiring the electricity demand forecast ...
Modelagem e simulação computacional de transformadores de potência para estudo de transitórios em altas frequências
(Universidade Federal de Santa Maria, 2016-08-18)
This paper presents a proposed the modeling of power transformers for high-frequency electromagnetic transients. The application of this model allows the evaluation of the windings behavior against the voltage surges imposed ...
Metodologia para reposição de serviço e gestão de carga em microrredes inteligentes
(Universidade Federal de Santa Maria, 2016-08-31)
This work presents the development of a methodology to service replacement and management loads in islanded smart grid by load shedding, supported by Distributed Generation, to avoid or reduce violations of continuity ...
Análise e controle de um conversor CA-CC com elevado ganho de tensão aplicado a um sistema de geração de micro-ondas
(Universidade Federal de Santa Maria, 2016-07-28)
This master thesis performs the analysis and design of an AC-DC converter with high voltage
gain to be used to supply a magnetron in a microwave generation system. The converter topology
is chosen so as to enable input ...
A educação na abordagem das capacitações
(Universidade Federal de Santa Maria, 2016-02-18)
The word education comes from the latin educare meaning "drive out". Education, understood here as the act of educating, it can occur at school, interaction with colleagues or can be developed via the media. Until the ...
Análise da estruturação dos serviços para registro das vítimas do desastre da Boate Kiss em Santa Maria
(Universidade Federal de Santa Maria, 2016-07-18)
This study aimed to verify how the process of registration and management of information for victims of a disaster from the demand identified by answering services (health services, civil police and association of relatives ...