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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2018.tde-22012018-114224
Document
Author
Full name
Marcos Pereira
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1995
Supervisor
Committee
Costa, Geraldo Roberto Martins da (President)
Ohishi, Takaaki
Silva, Paulo Roberto Eiras da
Title in Portuguese
Um estudo para alocação ótima de potência reativa utilizando o método dos multiplicadores de Lagrange
Keywords in Portuguese
Alocação ótima de reativos
Fluxo de carga ótimo
Multiplicadores de Lagrange
Otimização
Sistemas elétricos de potência
Abstract in Portuguese
Este trabalho apresenta uma metodologia para a alocação de fontes de reativos em sistemas de energia elétrica. A metodologia é baseada no multiplicador de Lagrange, o qual indica a sensibilidade entre a função objetivo perdas de potência ativa na transmissão, e as restrições injeções de potência reativa. Os multiplicadores de Lagrange são obtidos impondo-se as condições de estacionaridade à função Lagrangeana Aumentada, a qual é associada ao problema de Fluxo de Carga Ótimo. A metodologia é comparada com o método Simplex e com o sistema original. Testes foram realizados com os sistemas AEP14 e AEP30 que mostraram a eficiência da metodologia.
Title in English
not available
Keywords in English
Lagrange's multiplier
Optimal load flow
Optimization
Power electrical systems
Reactive optimal allocation
Abstract in English
This work presents a methodology for the allocation of reactive sources in electrical power systems. The methodology is based on Lagrange's multiplier that points out the sensibility between the objective function - transmission active power loss and the constraints reactive power injections. The Lagrange's multipliers are obtained by imposing the conditions of stationarity at Augmented Lagrangeana function, that is connected to the Optimal Load Flow problem. The methodology is compared with the Simplex method and the original system. Tests were canied out with AEP14 and AEP30 systems, that showed the efficiency of the methodology.
 
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Publishing Date
2018-01-22
 
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