Reactive Power Resources
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. AVALIAÇÃO E REFORÇO DAS CONDIÇÕES DE ESTABILIDADE DE TENSÃO EM BARRAS DE TENSÃO CONTROLADA POR GERADORES E COMPENSADORES SÍNCRONOS / VOLTAGE STABILITY ASSESSMENT AND ENHANCEMENT IN VOLTAGE-CONTROLLED BUSES BY SYNCHRONOUS GENERATORS AND COMPENSATORS
After the incidence of some voltage collapses in the energy transmission systems in the world, the voltage security became an issue of great interest in the last years due to the importance of its impact. The phenomenon of voltage stability is due to the excessive active and reactive power flow in the electrical transmission network and has been associated w
Publicado em: 2009
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2. Analise de viabilidade de troca de motores eletricos superdimensionados e a influencia da energia reativa / Analysis of feasibility of the change of super dimensioned electrical engines and the influence of reactive energy
This study shows the importance of the electrical engine of triphasic induction rotor (squirrel cage), which is the main responsible for the waste of electrical energy in industry; it presents its electrical and mechanical characteristics and its evolution along the years, as well. The study describes the problem of the super dimensioning of these engines th
Publicado em: 2008
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3. Modelagem e análise de desempenho dinâmico de complexos elétricos contendo centrais eólicas dotadas de geradores síncronos / Modeling and dynamic performance analysis of electric power systems containing wind installations equipped with synchronous generators
New generation resources, with low implantation and operation costs and that provoke the minimum possible impact to the environment, are undoubtedly focuses of attention to all the segments of the society. From this common sense, the alternative or renewable sources of energy, and particularly the wind, have certainly had a significant penetration in the com
Publicado em: 2007
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4. Modelagem e anÃlise de desempenho dinÃmico de complexos elÃtricos contendo centrais eÃlicas dotadas de geradores sÃncronos / Modeling and dynamic performance analysis of electric power systems containing wind installations equipped with synchronous generators
New generation resources, with low implantation and operation costs and that provoke the minimum possible impact to the environment, are undoubtedly focuses of attention to all the segments of the society. From this common sense, the alternative or renewable sources of energy, and particularly the wind, have certainly had a significant penetration in the com
Publicado em: 2007
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5. DESENVOLVIMENTO E IMPLEMENTAÇÃO DE UMA MICRO-REDE AVANÇADA DE ALTA FREQÜÊNCIA PARA INTEGRAÇÃO DE FONTES ALTERNATIVAS DE ENERGIA / DEVELOPMENT AND IMPLEMENTATION OF AN ADVANCED HIGH FREQUENCY MICROGRID FOR INTEGRATION OF ALTERNATIVE ENERGY SOURCES
This Thesis presents a distributed generation system, which works as a Microgrid, suitable to integrate alternative energy sources, using a high frequency AC link (HFAC) as a means of connecting sources and loads. The static compensation of current harmonics, reactive power and voltage harmonics, which can be found in the Microgrid, is considered a key facto
Publicado em: 2006
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6. ACTUAL REACTIVE POWER CAPABILITY EVALUATION IN AN ELECTRICAL POWER PLANT / AVALIAÇÃO DA CAPACIDADE REAL DE GERAÇÃO DE POTÊNCIA REATIVA EM UMA USINA DE GERAÇÃO DE ENERGIA ELÉTRICA
They show that different generator loads produce greater heating in different parts of generator. A method is described and a software is presented to evaluate the actual reactive power capability curve considering the operating condition.This paper shows that it is possible to enlarge the reactive power capability only by knowing the actual capability limit
Publicado em: 2002
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7. Influencia do fator economico nas metodologias de projeto e fabricação do produto mecanico
Man thinks that the improvementof many mechanical projects, is possible only through the employ of organizative methodologies or remarkable investments of capital in the manufactory system. The actual transition from the industrial to the knowledge era, is performing social and economic deep changes and radical reforms for the industrial comportment. These c
Publicado em: 1998