Power Transmission Planning
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Decomposition approach for generation and transmission expansion planning with implicit multipliers evaluation
In an electric power systems planning framework, decomposition techniques are usually applied to separate investment and operation subproblems to take benefits from the use of independent solution algorithms. Real power systems planning problems can be rather complex and their detailed representation often leads to greater effort to solve the operation subpr
Pesqui. Oper.. Publicado em: 08/11/2013
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2. Metaheurística para o Problema de Planejamento de Redes de Transmissão de Energia Elétrica com Redimensionamento / Metaheuristics for the transmission expansion planning problem with redesign
At times, the electrical load in dierent areas varies, claiming the construction of new electric generators and the expansion of the electrical transmission network. In this dissertation we focus on the transmission expansion planning problem, assuming that new generators are built to meet the new demands. This expansion requires large investments, which nee
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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3. Transmissão de energia elétrica em meia-onda e em corrente contínua - análise técnico-econômica. / Half wave-length power transmission and HVDC power transmission - a technical and eponomical analysis.
In order to connect important power generation plants located in Northern region to the major load centers in the Northeast and Southeast parts of the country, the Brazilian electric sector should deal with the challenge of planning transmission systems to cover distances of more than 2000 km. The HVDC transmission alternative, which has shown satisfactory r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/03/2012
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4. Desenvolvimento de modelos e algoritmos sequenciais e paralelos para o planejamento da expansão de sistemas de transmissão de energia elétrica / Development of mathematical models, sequential and parallel algorithms for transmission expansion planning
The main objective of this study is to propose a new methodology to deal with the long-term transmission system expansion planning with multiple generation dispatch scenarios problem (TEP-MDG). With the methodology proposed in this thesis we aim to build expansion plans with minimum investment cost and also capable of meeting the new demands of modern electr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/03/2012
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5. "Afundamentos de tensão no contexto da expansão dos sistemas elétricos: proposta de índices considerando dados do sistema de detecção de descargas atmosféricas"
The impact of voltage sags to power utilities and consumers has been remarking this event as a relevant phenomenon to address in power system studies. It is considered one of the most frequent sources of power-supply interruption and malfunction on several types of equipment, resulting in power-quality degradation. Nowadays, voltage sag has been basically ad
Publicado em: 2009
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6. AnÃlise de atenuaÃÃo de sinal em ambientes indoor usando lÃgica nebulosa / Analysis of signal attenuation for Indoor Environments using Fuzzy Logic
Due to the increasing demand for services related to wireless networks, such as video, voice and video conferencing and to the concern of telecommunications companies to meet this demand efficiently, the planning of a wireless link becomes very important. Since the propagation of a signal over a wireless network is not driven, it can suffer attenuation cause
Publicado em: 2009
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7. Automação como recurso de planejamento de redes de distribuição de energia elétrica. / Automation as resource for distribution systems planning.
Concerning the components of an electrical distribution network and their susceptibility to functional failures or need for maintenance actions, planning and project criteria should be adopted to assure continuity of energy supply even though some components may be out of work. Traditionally the power systems, especially in power transmission and distributio
Publicado em: 2008
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8. Analysis of participation of energy self producers and independent producers in the Brazilian electric sector. / Análise da participação dos autoprodutores e produtores independentes de energia no setor elétrico brasileiro.
Historically, the electric power supply in Brazil has a role that stands out in the domestic economic growth, due to its capacity to add revenue through the promotion to large-sized industries. Its strong association in the composition of the domestic revenue is of general concern of all individuals involved and interested in the power supply in Brazil, whic
Publicado em: 2008
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9. Alternativas para a inserção do gás da Bacia de Santos na matriz energética - estudo de caso: Cidade de Santos / Alternativas para a inserção do gás da bacia de santos na matriz energética estudo de caso: cidade de Santos
The natural gas difficult to penetrate in the residential market and compete with electrical energy is the main objective of this study, which will support that in big cities, where natural gas is already reality or will be the use of natural gas should not be considered competition for other types of energy resources but as a strategically complement of the
Publicado em: 2008
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10. Methodology for monitoring voltage SAGs and SWELLs in power systems. / Metodologia para a monitoração eficiente de variações de tensão de curta duração em sistemas elétricos de potência.
This dissertation presents a methodology based on Genetic Algorithms and Fuzzy Mathematical Programming to determine the optimum number of power quality monitors and the locations they should be installed to measure Voltage Sags and Swells in transmission power networks. The methodology developed represents a tool for planning power networks, because it indi
Publicado em: 2007
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11. Global Evaluation of Energy Ways of Natural Gás Transport, as Well as Secondary Energy / Avaliação global dos modos energéticos de transporte do gás natural inclusive como energia secundária
O objetivo do trabalho é fazer a avaliação global de alguns dos modos energéticos de transporte do gás natural (gasodutos, GNL e GNC), inclusive como energia secundária (eletricidade e GTL). Para a escolha do melhor modo de transporte, além dos custos de cada projeto, serão considerados outros três fatores, que são: impactos ambientais, impactos so
Publicado em: 2007
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12. Um controle supervisor de centrais eÃlicas para solucionar problemas de integraÃÃo elÃtrica
The installed capacity of wind power in Brazil should be around 1.4 GW in 2008 being practically divided into two regions of the country (South and Northeast). The predicted installations to the Northeast Region are almost 800 MW. In this situation with several wind turbines connected to the grid in a few years time, the concerns for impacts on the power sys
Publicado em: 2006