Electric Power Markets
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Implementação e avaliação de desempenho de estratégias de controle aplicadas em um sistema de armazenamento refrigerado / Implementation and performance evaluation of control strategies applied in a storage system for refrigerated
The cold storage of agricultural products intended to meet a demand for healthier products by markets and consumers. You can also give producers an alternative to extend the time for the marketing of products stored. Cold storage is important for a better conservation of perishable products. Because with the decrease in storage temperature, the metabolic rea
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/01/2011
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2. Energy policy and regional inequalities in the Brazilian economy / Política energética e desigualdades regionais na economia brasileira
The objective of this dissertation is to evaluate the long-run regional impacts of tariff policy of the Brazilian electric power sector. The structural reforms carried on this sector determined the emergence of two different spatial distribution trends of the electric power tariffs among the Brazilian states: one of convergence and another of spatial diverge
Publicado em: 2010
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3. DEVELOPMENT OF A METHODOLOGY FOR THE COORDINATION HYDROTHERMAL-TERM IN ELECTRIC MARKET COMPETITIVE / Desenvolvimento de uma metodologia para a coordenação hidrotérmica de longo prazo em mercado elétrico competitivo
In this work a methodology based on linear programming for long-term hydrothermal scheduling of electric power systems is proposed. The objective of the hydrothermal scheduling is to find an optimal operation for a specific time interval and with high reliability and minimum cost. That is equivalent to determine an optimal generation scheduling for the power
Publicado em: 2007
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4. Análise da livre concorrência e competitividade no setor elétrico brasileiro / ANALYSIS OF FREE COMPETITION AND COMPETITIVENESS IN THE SECTOR ELECTRIC BRAZILIAN
In this work the relevant aspects of free competition and competitivity in the Brazilian electric sector after deregulation initiated in 1995 are analyzed. The earlier model of the electric sector, a State monopoly, moved for a desverticalized structure with the separation of the sectors of generation, transmission and distribution. With this scenario as bac
Publicado em: 2007
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5. The consolidation of the transmission and distribution networks in the brazilian electric system in the face of the state s interrence with the propiety / A consolidação das redes de trasmissão e de distribuição do sistema eletrico brasileiro em face da intervenção do Estado na propiedade
The restructuring and privatization of the Brazilian electric sector started in 1995, has redefined the State?s role within this sector that now starts to play the regulating and controlling functions instead of those of a contractor agent. With the non-intervention, the State has become the responsible for regulating, supervising and controlling the granted
Publicado em: 2007
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6. Modelo de Stackelberg na competição de empresas privadas e estatais pela expansão da oferta de energia eletrica / Stalckelberg model in the competition between state-owned and private firms for the expansion in the electric energy supply
The process of structural reform that has been occurring in the Brazilian electric industry since the second half of the 1990 s suffered an infiection in 2002. The programs of privatizations were interrupted, stabilizing a hybrid structure where state-owned and private firms coexist in the same market. This thesis intends to analyze the effect, in the econom
Publicado em: 2004
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7. Um modelo de despacho economico para reservas operativas
Over the last decade there has been a worldwide reorganization of the power markets, with important changes in their structures, with attempts to improve their efficiency, quality and competitiveness aiming the benefit of users or consumers. The particular characteristics of this industry (impossibility of energy storage and the consequent need for a balance
Publicado em: 2004
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8. 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
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9. METHODOLOGY OF ANALYSIS FOR A COMPETITIVE MARKET OF REACTIVE POWER / METODOLOGIA DE ANÁLISE PARA UM MERCADO COMPETITIVO DA POTÊNCIA REATIVA
Neste trabalho é proposta uma metodologia flexível para o cálculo dos custos marginais da potência ativa e reativa em mercados elétricos competitivos. Na formulação adotou-se um modelo estático dos geradores síncronos com considerações não lineares dos limites de potência reativa. O custo total de produção da potência reativa é considerado c
Publicado em: 2002
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10. Influencia do custo do deficit de energia nos preços spot de energia eletrica no Brasil
This work tries to show how energy deficit costs affect spot prices in Brazil. It presents: evaluation methodologies for deficit social cost per unit of non supplied energy; simulation results using price models, where energy deficit costs values were modified to verify the effect in prices; sensitivity studies in prices caused by increases in past inflows t
Publicado em: 2002
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11. OPERATING POWER RESERVE AS ANCILLARY SERVICE: MARKET MECHANISM FOR PURCHASING / RESERVA DE POTENCIA OPERATIVA COMO SERVICIO AUXILIAR MECANISMO DE MERCADO PARA ADQUISICIÓN Y REVENDA / RESERVA DE POTÊNCIA OPERATIVA COMO SERVIÇO ANCILAR: MECANISMO DE MERCADO PARA AQUISIÇÃO E REVENDA
In the previous structure of the Brazilian power sector, the economic model was such that the same company could provide generation, transmission and distribution services. In this model, services such as power reserve, reactive power support and transmission reserve, i.e., the so-called Ancillary Services to the operation of the electric system, were not co
Publicado em: 2001
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12. COMPETITION IN ELECTRIC ENERGY SYSTEMS - COMMERCIALIZATION AND STRATEGIES TO THE MARKETS / COMPETIÇÃO EM SISTEMAS DE ENERGIA ELÉTRICA COMERCIALIZAÇÃO E ESTRATÉGIAS PARA O MERCADO
Electricity utilities all over the world have been undergoing radical changes in their market and its regulatory structure. A basic trend in this restructuring process has been to promote competition in generation, distribution/retailing segments and participation of private agents in the energy production process. This restructuring is based on centralized
Publicado em: 2001