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

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...

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Main Authors: Denitsa Darzhanova, Ilona Iatcheva
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/12/4581
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author Denitsa Darzhanova
Ilona Iatcheva
author_facet Denitsa Darzhanova
Ilona Iatcheva
author_sort Denitsa Darzhanova
collection DOAJ
description 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.
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spelling doaj.art-a9ec9af2ae85444eb0434714c0677a872023-11-18T10:11:19ZengMDPI AGEnergies1996-10732023-06-011612458110.3390/en16124581Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load ConditionsDenitsa Darzhanova0Ilona Iatcheva1Department of Electrical Measurements, Technical University of Sofia, 1756 Sofia, BulgariaDepartment of Fundamentals of Electrical Engineering, Technical University of Sofia, 1756 Sofia, BulgariaIn 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.https://www.mdpi.com/1996-1073/16/12/4581transformertemperature field3D FEM modelingthermal resistances
spellingShingle Denitsa Darzhanova
Ilona Iatcheva
Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions
Energies
transformer
temperature field
3D FEM modeling
thermal resistances
title Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions
title_full Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions
title_fullStr Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions
title_full_unstemmed Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions
title_short Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions
title_sort investigation of the temperature field distribution in an ei type iron cored coil using 3d fem modeling at different load conditions
topic transformer
temperature field
3D FEM modeling
thermal resistances
url https://www.mdpi.com/1996-1073/16/12/4581
work_keys_str_mv AT denitsadarzhanova investigationofthetemperaturefielddistributioninaneitypeironcoredcoilusing3dfemmodelingatdifferentloadconditions
AT ilonaiatcheva investigationofthetemperaturefielddistributioninaneitypeironcoredcoilusing3dfemmodelingatdifferentloadconditions