Hydro And Thermal Power
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Desafios e oportunidades da geração eólica e termelétrica a gás natural no Sistema Elétrico Peruano. / Challenges and opportunities of the wind generation and to natural gas thermal in the Peruvian Electricity System.
Several countries around the world have increasingly sought to diversify their electrical matrix in order to reduce dependence on fossil fuels and reduce emissions of gases responsible for worsening greenhouse effect in the atmosphere. As a result, has grown the participation of some renewable energy sources that until two decades ago did not occupied a prom
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/02/2012
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2. Inserção da energia eólica no sistema hidrotérmico brasileiro / Inserting the Wind Power in Hydrothermal Brazilian System
Nos recentes leilões de energia realizados no setor elétrico brasileiro, a energia térmica foi uma das principais vencedoras. Este trabalho avalia a possibilidade de reversão desta tendência, mantendo a trajetória anterior de uma matriz limpa e renovável. A maior parte da eletricidade brasileira tem sido proveniente de hidrelétricas. O plano energét
Publicado em: 2011
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3. DEFINIÇÃO DA ÁRVORE DE CENÁRIOS DE AFLUÊNCIAS PARA O PLANEJAMENTO DA OPERAÇÃO ENERGÉTICA DE MÉDIO PRAZO / DEFINITION OF THE STREAMFLOW SCENARIO TREE TO LONG-TERM OPERATION PLANNING
In the planning operation the currently used model in the long-term operation planning of the Brazilian Interconnected System, the uncertainty concerning streamflow is considered explicitly in the estimation of the expected cost-to-go function, as well as in the covering of the state space, by the use of multivariate hydrological scenarios. The set of all po
Publicado em: 2009
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4. Solução de problemas de otimização utilizando arquitetura híbrida. / Solution of optimization problems using hybrid architecture.
Electrical power could be considered as one of the economy propulsion vector of a country, assuming extremely important and strategic role because it makes direct influence to the production capacity. The expansion of electrical energy production could not only be done in a short time because constructions in this area take many years and could require more
Publicado em: 2008
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5. BIFUEL CONVERSION OF THERMAL POWER PLANTS UNDER UNCERTAINTY: A REAL OPTIONS APPROACH / CONVERSÃO DE TERMELÉTRICAS PARA BI-COMBUSTÍVEL EM AMBIENTE DE INCERTEZA: UMA ABORDAGEM POR OPÇÕES REAIS
In Brazil, despite the predominant participation of hydro power plants, some years ago, due to Thermo Power Priority Program (PPT), a large number of Natural Gaspowered plants were implanted. A lot of uncertainties are imposed to the players in the Brazilian Power Market, and one more risk arises: the Natural Gas offer. The bi-fuel conversion arises as an op
Publicado em: 2008
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6. 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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7. 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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8. Interior-point methods applied on power systems modeled by network flows / Metodos de pontos interiores aplicados em sistemas de potencia modelados por fluxo em redes
The aim of this work is to develop an optimization model for individual hydro-plants and a model for DC optimal power flow for the hydro-thermal operational planning and programming, in particular for the brazilian electric power system. For this purpose interior-point methods that explore problems properties, in particular the network flow structure, has be
Publicado em: 2006
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9. An operational policy for the mid term hydrothermal scheduling of the Brazilian interconnected power system / Uma politica operativa a usinas individualizadas para o planejamento da operação energetica do sistema interligado nacional
This work presents an operational policy for the mid term hydrothermal scheduling of the Brazilian Interconnected Power System (BIPS) based on the individual representation of the hydro and thermo power plants, the detailed representation of the plants? features and the indirect representation of the inflow stochasticity through a forecasting model. These ch
Publicado em: 2006
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10. SIMULAÇÃO DO PROCESSO DE COMBUSTÃO DE GASES PROVENIENTES DE ATERROS SANITÁRIOS / SIMULATION OF THE COMBUSTION PROCESS OF SANITARY LANDFILL GAS
The utilization of the sanitary landfill gas for electric power generation shows how the solid waste environmental problems can be reverted to environmental and economical benefits. This screen shows results about waste composition in sanitary landfills and investigates its utilization as energy source through biogas combustion. A model based on finite volum
Publicado em: 2004
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11. OPTIMUM PRICE BIDDING STRATEGY IN THE SHORT-TERM MARKET OF HYDRO-DOMINATED ELECTRIC SYSTEMS / ESTRATÉGIA ÓTIMA DE OFERTA DE PREÇOS NO MERCADO DE CURTO PRAZO EM SISTEMAS COM PREDOMINÂNCIA HIDRELÉTRICA
In perfectly competitive markets, there are no loopholes that can be exploited by agents to maximize profit through non-competitive behavior. However, electricity markets look more like an oligopoly than perfectly competitive markets. If competition is not perfect, generation agents may try to establish optimum price bidding strategies to maximize profits. I
Publicado em: 2003