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A Methodology for Calculating the R - L Parameters of a Nonlinear Hysteretic Inductor Model in the Time Domain

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  • Srđan Divac

    (Faculty of Technical Sciences Čačak, University of Kragujevac, 32102 Čačak, Serbia)

  • Marko Rosić

    (Faculty of Technical Sciences Čačak, University of Kragujevac, 32102 Čačak, Serbia)

  • Stan Zurek

    (Megger Instruments Ltd., Dover CT17 9EN, UK)

  • Branko Koprivica

    (Faculty of Technical Sciences Čačak, University of Kragujevac, 32102 Čačak, Serbia)

  • Krzysztof Chwastek

    (Faculty of Electrical Engineering, Częstochowa University of Technology, 42-201 Częstochowa, Poland)

  • Milan Vesković

    (Faculty of Technical Sciences Čačak, University of Kragujevac, 32102 Čačak, Serbia)

Abstract

The aim of this paper is to present a methodology for the calculation of the R - L parameters of a model of a nonlinear hysteretic inductor. The methodology is based on the analysis of the instantaneous magnetising power calculated from the hysteresis loop of the inductor and is completely developed in the time domain. The instantaneous magnetising power is firstly separated into the oscillatory and absorbed components. Thereafter, the parameter R is calculated using the absorbed component and the parameter L using the oscillatory component. The methodology is validated through the comparison of the results for parameters R and L obtained with the proposed method and the existing method based on the Poynting theorem. The validation is demonstrated on the specific simulated cases with idealised parameters of a nonlinear circuit. Additionally, the paper presents results for the parameters R and L calculated from the hysteresis loops measured at frequencies from 1 to 300 Hz. Furthermore, the fitting functions representing the variation of these parameters with the rate of change of magnetic flux density, and the corresponding results, are presented in the paper. A discussion of all the results presented and applicability of the methodology proposed, as well as the concluding remarks, are given thereafter.

Suggested Citation

  • Srđan Divac & Marko Rosić & Stan Zurek & Branko Koprivica & Krzysztof Chwastek & Milan Vesković, 2023. "A Methodology for Calculating the R - L Parameters of a Nonlinear Hysteretic Inductor Model in the Time Domain," Energies, MDPI, vol. 16(13), pages 1-14, July.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:13:p:5167-:d:1187066
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    References listed on IDEAS

    as
    1. Gustav Mörée & Mats Leijon, 2023. "Review of Hysteresis Models for Magnetic Materials," Energies, MDPI, vol. 16(9), pages 1-66, May.
    2. Youliang Sun & Li Zhang & Zhuangzhuang Zhang & Dong Wang, 2022. "Overview of Research Status of DC Bias and Its Suppression in Power Transformers," Energies, MDPI, vol. 15(23), pages 1-17, November.
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