A neural network based approach to estimate of power system harmonics for an induction furnace under the different load conditions

Hayrettin Gokozan, Sezai Taskin*, Serhat Seker, Huseyin Ekiz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


This study presents an artificial neural network based intelligent monitoring algorithm to detect of a power system harmonics. The proposed approach was tested on the current and voltage data of an induction furnace power system, which was collected by using a LabVIEW based measurement system under different load conditions. The collected data was analyzed with MATLAB program using the short-time Fourier transform and power spectral density estimation methods to find the dominant harmonics of the power system. After determination of the operational region in terms of the harmonic levels under the full-load condition, the power spectral density algorithm was used for determining the stationary intervals of the power system data. Identified harmonic frequencies were used to train the artificial neural network algorithm, which was then tested for harmonic estimation at different load conditions. Hence, the neural network topology was used as a artificial follower. Results demonstrate that harmonic state estimation of a power system can be achieved by an error variation at the output of the auto-associative neural network.

Original languageEnglish
Pages (from-to)111-117
Number of pages7
JournalElectrical Engineering
Issue number2
Publication statusPublished - 12 Jun 2015

Bibliographical note

Publisher Copyright:
© 2014, Springer-Verlag Berlin Heidelberg.


The authors present their special thanks to the Celal Bayar University Scientific Research Projects Commission for supporting this study under Project Number 2012-052, and technical/engineering units of the Turcelik Metal Casting Plant in Turgutlu-Manisa / Turkey for their technical supports in this research.

FundersFunder number
Celal Bayar University Scientific Research Projects Commission2012-052


    • Auto associative neural network
    • Harmonic estimation
    • Induction furnace
    • Power spectral density
    • Power system harmonics
    • Short-time Fourier transform


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