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Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions

Author

Listed:
  • Denitsa Darzhanova

    (Department of Electrical Measurements, Technical University of Sofia, 1756 Sofia, Bulgaria)

  • Ilona Iatcheva

    (Department of Fundamentals of Electrical Engineering, Technical University of Sofia, 1756 Sofia, Bulgaria)

Abstract

In this present paper, results for the temperature distribution in electromagnetic construction in the form of coil coupled with EI-type ferromagnetic core are presented. This construction is typical for small electric transformers (AC operation mode) or chokes—DC or AC operation mode. Investigation has been provided using 3D finite element method computer modeling at various load conditions to simulate power dissipation both in the coil and the core volumes. The results obtained were used to calculate overall thermal resistances toward ambient free air and the thermal resistance between the coil and the core. These results show the important role the thermal resistance between the coil and the core may play for both steady-state and transient device operation.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:12:p:4581-:d:1166309
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    References listed on IDEAS

    as
    1. Zhan Shen & Bingxin Xu & Chenglei Liu & Cungang Hu & Bi Liu & Zhike Xu & Long Jin & Wu Chen, 2022. "The Modeling and Simplification of a Thermal Model of a Planar Transformer Based on Internal Power Loss," Sustainability, MDPI, vol. 14(19), pages 1-20, September.
    2. 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.
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