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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2016.tde-26022016-144332
Document
Author
Full name
Saulo Ricardo Canola
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2006
Supervisor
Committee
Costa, Geraldo Roberto Martins da (President)
Altafim, Ruy Alberto Corrêa
Souza, Alessandra Macedo de
Title in Portuguese
Alocação de unidades de geração termoelétrica em sistemas elétricos de potência
Keywords in Portuguese
Alocação de unidades geradoras termoelétricas
Fluxo ótimo de potência
Método primal-dual barreira logarítmica
Multiplicadores de Lagrange
Planejamento em SEP
Abstract in Portuguese
Este trabalho tem como objetivo realizar um estudo de alocação de unidades termoelétricas em sistemas elétricos de potência (SEP). O fluxo de potencia ótimo (FPO) foi utilizado para se obter o ponto ótimo de operação para o sistema e os multiplicadores de Lagrange associados às restrições. Os multiplicadores de Lagrange indicam a sensibilidade entre a função objetivo e a restrição a ele associada. Esta sensibilidade indica, quais as barras do sistema, são candidatas à alocação de novas usinas termoelétricas. Testes nos sistemas de 5 barras, IEEE 14 barras, IEEE 30 barras, equivalente CESP 440 kV de 53 barras e IEEE 118 barras comprovam a eficiência da abordagem, a qual poderá ser utilizada em estudos de planejamento da expansão do sistema.
Title in English
Thermoelectrical generation allocation in electric power systems
Keywords in English
Lagrange multipliers
Optimal power flow
Power system planning
Primal-dual logarithmic barrier method
Sensitivity analysis
Thermoelectric power plants allocation
Abstract in English
The aim of this paper is to present a study of thermoelectrical generation allocation in electric power systems. The optimal power flow (OPF) was used to evaluate the optimal operation point for the power system and also Lagrange multipliers associated with the constraints. The Lagrange multipliers are the sensitivity between the objective function and its constraints. This sensitivity is used to verify in a power system where is the best place to incentive the allocation of new thermoelectrical power plants. Tests on the systems: 5 buses, IEEE 14 buses, IEEE 30 buses, equivalent CESP 440kV 53 buses and IEEE 118 buses showed the efficiency of the presented approach. This method of analyzing the system can be used in study of expansion planning system.
 
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Publishing Date
2016-02-26
 
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