Short Term Power System Operation
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Algoritmos para o planejamento da operação de sistemas modernos de distribuição de energia elétrica = : Algorithms for operation planning of modern electric distribution power systems / Algorithms for operation planning of modern electric distribution power systems
The distribution system operation planning stage is concerned with the determination of capacitor bank, transformer and voltage regulator settings. This must be accomplished considering active and reactive power injections of distributed generators and at the main substation, as well as physical and regulatory issues in order to improve the network performan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/08/2012
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2. 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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3. Jogatina Geopolítica: o Papel da Energia no Processo de Integração Regional da Experiência Européia ao desafio Sul Americano. / Geopolitical Gambling: the role of energy in the regional integration process from the European experience to Latin America challenge
The purpose of this work is to create a basic list of principles for policy-making in the field of planning and operation level of energy systems, reinforcing the challenge and responsibility of interdisciplinary graduate studies in a Brazilian Federal University to the evolution of the planified thinking. This work attempts to understand the basic processes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/05/2010
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4. A NOVA DINÂMICA DO CAPITAL E OS REFLEXOS SISTÊMICOS DA DESREGULAMENTAÇÃO JURÍDICA DOS MERCADOS FINANCEIROS
The new paradigm of the capitalism and the new configuration of production relations resize the economic phenomenum. Capital, society and work are currently considered reality transformers, restoring the ties and dictating rules and lifestyles. The new market and the dynamic imposed, brought with it the necessity of regulation and creation of instruments and
Publicado em: 2009
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5. OperaÃÃes de SWAP no mercado de energia
In brazilian electrical sector, the linked system is divided by four subsystems, due to the electrical restrictions in their linkages. This condition brings, as result, an existing possibility of distinct Differences Clean-up Price in each of those subsystems. Concerning to actual brazilian legislation, the electrical sector agents are free to negotiate the
Publicado em: 2008
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6. ALGORITMOS HEURÍSTICOS DE OTIMIZAÇÃO DA PROTEÇÃO E MANOBRA EM REDES DE DISTRIBUIÇÃO DE ENERGIA / RELIABILITY HEURISTIC ALGORITHMS FOR PROTECTION AND MANEUVERING DEVICES DISTRIBUTION NETWORKS
The new regulations of the electricity sector have requested from the power utilities great performance efficiency on their distribution systems, requiring more rigorous quality and continuity energy levels. In Brazil, the privatization of the power utility companies has been allowing the adoption of new planning and operation policies, that necessarily cons
Publicado em: 2008
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7. Regulador de tensÃo com comutaÃÃo eletrÃnica de taps â anÃlise de operaÃÃo e proteÃÃo das chaves estÃticas
The interconnected operation of large electrical systems and the fast spreading of the electrical sector with an increasing presence of sensitive loads to supply voltage disturbances demanded that the current laws to adapt to consumer needs, for example, to ensure the maintenance of constant voltage levels throughout the feeders of the electrical power distr
Publicado em: 2007
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8. Modelagem endoscÃpica virtual do monitoramento de equipamentos elÃtricos de alta tensÃo
With the promulgation of the 10.847/2004 and 10.848/2004 Laws, the Brazilian Power Sector started adopting competitiveness as the main element for obtaining concessions in the electric power system transmission and generation sectors. In this sense, the power sector companies will have to strongly intensify the monitoring processes of the power system equipm
Publicado em: 2007
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9. Alocação dinâmica de recursos computacionais para experimentos científicos com replanejamento automatizado a bordo de satélites / Dybanic allocation of computational resources for scientific experiments with autonomous replanning aboards satellites
The experiments aboard the Brazilian scientific satellites are currently thought to execute its tasks in a repetitive way, collecting, storing and sending data in a cycle that does not suffer great alterations. This way of dealing with the experiments operation fits perfectly to long-term scientific observation. There are, however, short-duration scientific
Publicado em: 2007
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10. Planejamento de curto prazo da operação incluindo criterios de estabilidade de tensão
This work presents a methodology to incorporate voltage stability criteria on power system short-term operation planning. The method consists of an active/reactive power re-dispatch for normal operation, and also a minimum load shedding strategy in case of critical contingencies, based in the direction provided by the participation factors obtained from the
Publicado em: 2004
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11. Um modelo de previsão de carga por barramento
In the operation of an electric power system, an important stage is the determination of the daily operation programme, which determines a plan of electric power production for the following day(s) for each of the generating units of the system, usually on an hourly or a half-hourly basis. This programme is used by the system s real time operation as an oper
Publicado em: 2004
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12. Melhoria das margens de estabilidade de tensão no problema do pre-despacho da operação atraves de corte mínimo de carga
The new philosophy of operating electric power systems exploring their maximum power transfer capability has placed the systems close to their stability limits. Therefore, it is important to assess the distance from the equilibrium point to the system voltage stability limit, and how to keep an adequate security margin from this limit. Considering the import
Publicado em: 2003