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Article

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

by
Denitsa Darzhanova
1 and
Ilona Iatcheva
2,*
1
Department of Electrical Measurements, Technical University of Sofia, 1756 Sofia, Bulgaria
2
Department of Fundamentals of Electrical Engineering, Technical University of Sofia, 1756 Sofia, Bulgaria
*
Author to whom correspondence should be addressed.
Energies 2023, 16(12), 4581; https://doi.org/10.3390/en16124581
Submission received: 21 April 2023 / Revised: 1 June 2023 / Accepted: 5 June 2023 / Published: 8 June 2023

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.
Keywords: transformer; temperature field; 3D FEM modeling; thermal resistances transformer; temperature field; 3D FEM modeling; thermal resistances

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MDPI and ACS Style

Darzhanova, D.; Iatcheva, I. Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions. Energies 2023, 16, 4581. https://doi.org/10.3390/en16124581

AMA Style

Darzhanova D, Iatcheva I. Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions. Energies. 2023; 16(12):4581. https://doi.org/10.3390/en16124581

Chicago/Turabian Style

Darzhanova, Denitsa, and 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 16, no. 12: 4581. https://doi.org/10.3390/en16124581

APA Style

Darzhanova, D., & Iatcheva, I. (2023). Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions. Energies, 16(12), 4581. https://doi.org/10.3390/en16124581

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