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Modelo de programação da operação hidrotérmica de curto prazo usando programação semidefinida

Authors: Paredes Quiñones, Miguel, 1985-;

Modelo de programação da operação hidrotérmica de curto prazo usando programação semidefinida

Abstract

Resumo: A presente pesquisa considera o desenvolvimento de dois modelos de otimização para o problema de planejamento da operação de curto prazo de sistemas hidroelétricos e termoelétricos de potência (POCP). Cada um destes problemas foi formulado como um modelo não-linear inteiro misto de grande porte, resolvido usando as vantagens da programação semidefinida (SDP) aplicada a relaxação de problemas quadrático na função objetivo e quadrático nas restrições (QCQP). Os modelos deverão encontrar uma programação de operação ótima das usinas hidroelétricas e termoelétricas para um horizonte de tempo de um dia ou uma semana, com discretização horária. A função-objetivo de minimização representa o custo do uso da água das usinas hidroelétricas e no caso do modelo termoelétrico considera os custos dos combustíveis, sendo nos dois casos são considerados custos de arranque das unidades. O uso de variáveis binárias para despacho de máquinas e restrições não-lineares produto da modelagem do sistema de transmissão, tornam estes problemas de uma alta complexidade. A técnica de solução para o modelo hidroelétrico utilizou um algoritmo de B&B com uma heurística alternativa para problemas de grande porte. No caso do modelo termoelétrico foi aplicada uma descomposição inteira-SDP baseada na decomposição de Benders

Abstract: This research considers the development of two optimization models for short-term hydroelectric and thermoelectric scheduling (STHTS). Each of these problems has been formulated as a nonlinear mixed model integer large scale, solved using the advantages of semidefinite programming (SDP) applied to relaxation of quadratic constrained quadratic programming (QCQP). The models should find optimal operation scheduling of hydroelectric and thermoelectric plants for a time horizon of a day or a week discretized in hours. The objective function to be minimized is the cost of water use of hydroelectric power plants and for thermoelectric model considers the combustible costs, also in both cases the units start-up costs are considered. The use of binary variable for unit commitment representation and non-linear constraints of the transmission system, turn those problems a high complexity problem. The solution technique for the hydropower model was by a B & B algorithm with a heuristic alternative to large scale problems. In the case of thermoelectric model was applied a decomposition integer SDP based on Benders decomposition

Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação

Orientadores: Secundino Soares Filho, Leonardo Silveira de Albuquerque Martins

Doutor em Engenharia Elétrica

Energia Elétrica

2013/07570-7

Doutorado

FAPESP

CAPES

Keywords

Técnicas de relaxação, Geração de energia, Energia elétrica - Produção - Planejamento, Relaxation methods (Mathematics), Sistemas de energia elétrica hidrotérmica, Programação quadrática, Relaxation methods, Hydrothermal power system, Relaxation techniques, Quadratic programming, Métodos de relaxação (Matemática), Power generation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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