Hydro Generating Units
Mostrando 1-5 de 5 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. Optimal dispatch of generating units in hydroelectric systems by heuristic based on langrangean relaxation and dynamic programming / Despacho otimo de unidades geradoras em sistemas hidreletricos via heuristica baseada em relaxação lagrangeana e programação dinamica
The daily scheduling operation of the electrical energy system has by target to find the dispatch generation to the next day which must be compatible with the daily generation target defined by the energy planning models and to be an operational guide. Because of its proximity with the real time operation the modeling must represent the main characteristic o
Publicado em: 2006
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3. A ocupação da Bacia do Rio das Velhas relacionada aos tipos de solo e processos erosivos
With the intention of avoiding the occurrence of erosive processes and the environmental damages that these cause to the hydrographic basin, it is important to know the influence that the soil characteristics, together with the way in which it is occupied, can have on environmental degradation. With this in mind, this study attempted to establish the relatio
Publicado em: 2006
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4. Comportamento dinamico de mancais de guia de hidrogeradores de grande porte / Dynamic behavior of large hydrogenerators guidebearings
This work is divided in two parts, one theoretical and other experimental. In the first part is presented a procedure, established from an analytical study of the Reynolds equation, to determine the oil film stiffness and damping coefficients of large hydro units guide bearings. It is applied to the upper guide bearings of the Itaipu Power Plant generating u
Publicado em: 1996
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5. Otimização da expansão conjunta da geração e transmissão em sistemas hidrotermicos de potencia atraves do algoritmo de decomposição de benders e equacionamento das incertezas relativas as vazoes afluentes aos reservatorios, das usinas hidroeletricas, previsões do mercado e custo de instalação das novas usinas
A new approach is developed in this work for the joint generationltransmission expansion planning of hydrothermal electric power systems. The goal is to determine the generating capacity of the candidate plants, the commissioning dates of their generating units, their production scheduling, the new transmission lines and their voltage levels, as well as the
Publicado em: 1995