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Itens para a visualização no momento 301-310 of 326
Alocação de canais para roteamento geográfico em redes de sensores e atuadores sem fio empregando a teoria dos jogos
(Universidade Federal de Santa Maria, 2012-05-25)
Wireless sensor and actuator networks are expected to grow quickly in size due to the
decreasing cost of nodes. For such large scale networks, the geographic routing algorithm
is a suitable approach. It finds a route for ...
Contribuições à identificação de regimes operacionais de centrais geradoras a biogás de aterros sanitários conectadas à rede
(Universidade Federal de Santa Maria, 2013-02-22)
This paper aims to propose the development of strategies for setting the best times of the day when a distributed generation of electricity (GD), which uses the biogas as fuel chemical reactions in urban solid waste, ...
Seleção de sistemas de geração de energia elétrica a partir de resíduos sólidos urbanos: uma abordagem com a lógica difusa
(Universidade Federal de Santa Maria, 2012-06-19)
Sustainability is becoming a major driving force in energy policy, leading to the development of different strategies and projects. Many of these strategies are related to the application of novel methodologies for selecting ...
Análise, projeto e implementação de um D-STATCOM para redes de distribuição monofásica
(Universidade Federal de Santa Maria, 2012-07-31)
This work analyzes a voltage regulator applied to low-voltage single-phase distribution networks, especially long distribution rural distribution lines with problems to comply with voltage level standards. This voltage ...
Controle de velocidade sensorless de motores brushless DC submetidos a variações periódicas de carga
(Universidade Federal de Santa Maria, 2011-07-21)
This master thesis presents a sensorless speed control drive of Brushless DC motors
used in reciprocating compressors. These compressors cause periodic load torque
variations on the motor, consequently mechanical vibrations ...
Modulador SI-ΣΔ cascata 2-2 empregando arquitetura de baixa distorção aplicado à conversão AD
(Universidade Federal de Santa Maria, 2012-03-16)
The increasing complexity of digital circuits forces the use of new technologies. New technologies
have the advantage of reducing the circuit size and power consumption coupled with
operation speed increasement. Most of ...
Modelagem estocástica em usinas virtuais de energia utilizando transformada de incerteza
(Universidade Federal de Santa Maria, 2019-12-19)
The increase in distributed generation (DG) participation is a reality, influencing the way it
generates, distributes and consumes electricity. Virtual Power Plant (VPP) will play an
important role in integrating ...
Metodologia para geração e uso de energia elétrica de fontes renováveis com foco em tecnologias disruptivas e valores socioculturais locais
(Universidade Federal de Santa Maria, 2018-08-24)
This thesis was carried out with the purpose of creating a methodology to define the composition of the local energy use and to generate electric energy through the complementarity of the sources of renewable energies, ...
Estimação da seção em falta e processamento de alarmes em sistemas de potência utilizando um sistema híbrido fundamentado na heurística construtiva e na programação inteira
(Universidade Federal de Santa Maria, 2012-09-21)
This work proposes a methodology which is able to accomplish alarms processing and to
estimate fault section in electrical power systems. The purpose is to filter alarms generated
during a shutdown and indicate which ...
Detecção e classificação de transitórios em redes de distribuição para identificação de faltas de alta impedância
(Universidade Federal de Santa Maria, 2013-03-08)
Protection systems used in distribution networks of electricity are not able to detect short circuits with high contact resistance due to the low currents generated, endangering the population and degrading the quality of ...