Fuzzy logic and particle swarm optimization for reactive power and voltage control / Logica nebulosa e tecnica de otimização particle swarm aplicados ao controle de tensão e de potencia reativa

AUTOR(ES)
DATA DE PUBLICAÇÃO

2008

RESUMO

Due to the growing electrical power demand and the lag of transmission system infrastruc ture, the operation of transmission systems approaches to its limits and increases the complexity of the system operation. ln this context, in order to satisfy the more rigid operating conditions, managing voltage profile and power flow in a more effective way becomes very important to the power companies that have the aim of enhancing the operating conditions and optimiz ing reactive power sources to provide the consumers with an adequate quality and reliability standards. The main objective of this research work is the development of methodologies for monitoring the volt age profile in order to keep it within operating limits and preserving the quality of the energy being served. The first method consists of a tool for helping decision making by system operators in control centres. This method is based on a set of fuzzy rules, which are the base of a fuzzy inference system. Considering that the voltage and reactive power control present nonlinear characteristics and mixed continuous and discrete variables, a hybrid meta-heuristic method based on fuzzy system and particle swarm optimization has been developed. The fuzzy system has been incorporated into swarm intelligence to provide operational point that allows reduction of system losses while satisfies the operationallimits, volt age constraints and the best utilisation of reactive power

ASSUNTO(S)

fuzzy logic fuzzy rules voltage profile controle de tempo real optimization reactive power control potencia reativa (engenharia eletrica) logica difusa particle swarm sistemas de energia eletrica - controle voltage control otimização

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