Inflow Forecasting
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. FUZZY INFERENCE SYSTEMS FOR MULTI-STEP AHEAD DAILY INFLOW FORECASTING
ABSTRACT This paper presents the evaluation of a daily inflow forecasting model using a tool that facilitates the analysis of mathematical models for hydroelectric plants. The model is based on a Fuzzy Inference System. An offline version of the Expectation Maximization algorithm is employed to adjust the model parameters. The tool integrates different inflo
Pesqui. Oper.. Publicado em: 2017-01
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2. Planejamento da operação energetica do sistema interligado nacional baseado em modelo de controle preditivo / Long term hydrothermal scheduling of the brazilian integrated system based on model predictive control
O planejamento da operação energética do Sistema Interligado Nacional (SIN) é uma tarefa complexa realizada por meio de uma cadeia de modelos de médio, curto e curtíssimo prazo acoplados entre si, cada um com considerações pertinentes à etapa que aborda. A proposta deste trabalho é apresentar uma alternativa para o planejamento da operação energ�
Publicado em: 2009
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3. Fuzzy inference systems approach for long term hydrothermal scheduling / Sistema de inferencia nebulosa ao planejamento da operação hidrotermica de medio prazo
The long term hydrothermal scheduling lies in the optimization of the water resource usage through the maximization of the hydroelectric production and the minimization of the thermal plants operation. Its goal is to assure an economic and reliable load supply throughout the study stages. This problem can be characterized by exhibiting a complex nature, sinc
Publicado em: 2009
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4. Power Map Explorer: uma ferramenta para visualização e previsão de vazões / Power Map Explorer: a tool to visualization and forecasting of inflow
A complexidade inerente ao processo de produção de energia apresenta um desafio aos especialistas quando estes se deparam com o dimensionamento e operação de sistemas de recursos hídricos. A produção energética de um sistema hidroelétrico depende fundamentalmente das séries de vazões afluentes às diversas usinas hidrelétricas do sistema. No enta
Publicado em: 2007
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5. 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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6. Previsão de vazões afluentes varios passos a frente via agregação de vazões para o planejamento energetico da operação de sistemas hidrotermicos de potencia / Multi-step-ahead streamflow forecasting using aggregation procedure in hydrothermal operation cheduling
Not informed
Publicado em: 2005
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7. SPOT PRICE FORECASTING IN THE ELECTRICITY MARKET / PREVISÃO DO PREÇO SPOT NO MERCADO DE ENERGIA ELÉTRICA
This thesis focuses on spot price forecasting and risk management in the Brazilian electricity industry. It is proposed a new methodology for the problem based on neuro- fuzzy systems and the dispatching and planning operation programs. The main advantage of the approach is to be able to get more informative spot price distributions than using the operation
Publicado em: 2003
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8. Sistema de suporte a decisão para o planejamento e a programação da operação de sistemas de energia eletrica
This work presents a computer aided decision support system applied to long and short term hydrothermal power systems scheduling. This program, called HydroLab, is based on a hydropower database system that manages the main set of Brazilian hydro plants (the current version manages a total of 102 plants coordinated by the ONS - National Electric System Opera
Publicado em: 2003