Single-phase autotransformer modelling and model parameter identification

Electrical Engineering volume 100, pages625–632(2018)Cite this article

Abstract

This paper proposes a newly formed model for time-domain analysis of single-phase autotransformer based on superposition of collinear vectors. Parameters of the model are determined with parameter identification procedure presented as a step-by-step algorithm using two no-load states. Identification is completed by solving minimization of least squares using genetic algorithm. This procedure also verifies the model and returns the total relative error referred to effective current value under 10%. Saturation is taken into account with nonlinear transcendent functions that are differentiable in whole domain, while the hysteresis is neglected.

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Acknowledgements

The authors would like to thank Marinko Barukčić, PhD for his support in making of this paper.

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Affiliations

  1. Faculty of Electrical Engineering, Computing and Information Technology Osijek, Josip Juraj Strossmayer University Osijek, Kneza Trpimira 2B, 31000, Osijek, Croatia

    Tin Benšić, Ivan Biondić & Predrag Marić

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  1. Tin Benšić
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  2. Ivan Biondić
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  3. Predrag Marić
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Correspondence to Tin Benšić.

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Benšić, T., Biondić, I. & Marić, P. Single-phase autotransformer modelling and model parameter identification. Electr Eng 100, 625–632 (2018). https://doi.org/10.1007/s00202-017-0534-2

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Keywords

  • Autotransformer
  • Parameter identification
  • Time-domain modelling
  • No-load state
  • Magnetization curve