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Compact Thermal Model of the Pulse Transformer Taking into Account Nonlinearity of Heat Transfer

Author

Listed:
  • Krzysztof Górecki

    (Department of Marine Electronics, Gdynia Maritime University, Morska 83, 81-225 Gdynia, Poland)

  • Kalina Detka

    (Department of Marine Electronics, Gdynia Maritime University, Morska 83, 81-225 Gdynia, Poland)

  • Krzysztof Górski

    (Command Institute, General Tadeusz Kościuszko Military University of Land Forces, Piotra Czajkowskiego 109, 51-147 Wrocław, Poland)

Abstract

This paper presents a compact nonlinear thermal model of pulse transformers. The proposed model takes into account differentiation in values of the temperatures of a ferromagnetic core and each winding. The model is formulated in the form of an electric network realising electrothermal analogy. It consists of current sources representing power dissipated in the core and in each of the windings, capacitors representing thermal capacitances and controlled current sources modelling the influence of dissipated power on the thermal resistances in the proposed model. Both self-heating phenomena in each component of the transformer and mutual thermal couplings between each pair of these components are taken into account. A description of the elaborated model is presented, and the process to estimate the model parameters is proposed. The proposed model was verified experimentally for different transformers. Good agreement between the calculated and measured waveforms of each component temperature of the tested pulse transformers was obtained. Differences between the results of measurements and calculations did not exceed 9% for transformers with a toroidal core and 13% for planar transformers.

Suggested Citation

  • Krzysztof Górecki & Kalina Detka & Krzysztof Górski, 2020. "Compact Thermal Model of the Pulse Transformer Taking into Account Nonlinearity of Heat Transfer," Energies, MDPI, vol. 13(11), pages 1-17, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:2766-:d:365649
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    References listed on IDEAS

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    1. David de la Hoz & Guillermo Salinas & Vladimir Šviković & Pedro Alou, 2020. "Simplification of Thermal Networks for Magnetic Components in Space Power Electronics," Energies, MDPI, vol. 13(11), pages 1-26, June.
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    Cited by:

    1. Denitsa Darzhanova & Ilona Iatcheva, 2023. "Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions," Energies, MDPI, vol. 16(12), pages 1-13, June.
    2. Kalina Detka & Krzysztof Górecki, 2020. "Influence of the Size and Shape of Magnetic Core on Thermal Parameters of the Inductor," Energies, MDPI, vol. 13(15), pages 1-20, July.
    3. Krzysztof Górecki & Kalina Detka & Krystian Kaczerski, 2022. "The Influence of the Transformer Core Material on the Characteristics of a Full-Bridge DC-DC Converter," Energies, MDPI, vol. 15(17), pages 1-13, August.
    4. Kalina Detka & Krzysztof Górecki & Przemysław Ptak, 2023. "Model of an Air Transformer for Analyses of Wireless Power Transfer Systems," Energies, MDPI, vol. 16(3), pages 1-19, January.
    5. Krzysztof Górecki & Kalina Detka, 2023. "SPICE-Aided Models of Magnetic Elements—A Critical Review," Energies, MDPI, vol. 16(18), pages 1-27, September.
    6. Guillermo Salinas & Juan A. Serrano-Vargas & Javier Muñoz-Antón & Pedro Alou, 2021. "Thermal Resistance Matrix Extraction from Finite-Element Analysis for High-Frequency Magnetic Components," Energies, MDPI, vol. 14(11), pages 1-14, May.

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    1. Guillermo Salinas & Juan A. Serrano-Vargas & Javier Muñoz-Antón & Pedro Alou, 2021. "Thermal Resistance Matrix Extraction from Finite-Element Analysis for High-Frequency Magnetic Components," Energies, MDPI, vol. 14(11), pages 1-14, May.

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