Estimação de Estado do Fluxo de Potência e da Distorção Harmônica para Sistemas de Distribuição baseada em Estratégias Evolutivas (Harmonic Distortion and Power Flow State Estimation for Distribution Systems Based on Evolutionary Strategies)

Walace do Nascimento Sepulchro (, Lucas Frizera Encarnação (, Marcelo Brunoro (

1Universidade Federal do Espírito Santo
2Instituto Federal do Espírito Santo

This paper appears in: Revista IEEE América Latina

Publication Date: Sept. 2015
Volume: 13,   Issue: 9 
ISSN: 1548-0992

With the formal prescriptions set by the Electricity Distribution Procedures it has become necessary to monitor the levels of harmonic distortion in the distribution networks. However, even with the reduction of costs associated with the acquisition of Power Quality meters, installing them in all the buses of a distribution system is uneconomical. In this context, it is proposed in this article an algorithm based on evolutionary strategies, able to estimate the harmonic distortion of a distribution system as well as the power flow in fundamental frequency by the monitoring of only a few buses. The performance of the proposed algorithm is evaluated in the IEEE 14-bus system.

Index Terms:
Total Harmonic Distortion, State Estimation, Evolutionary Strategies, IEEE 14-bus, Power Quality   

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