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

被引：0

作者：

Darzhanova, Denitsa ^{[1
]}

Iatcheva, Ilona ^{[2
]}

机构：

[1] Tech Univ Sofia, Dept Elect Measurements, Sofia 1756, Bulgaria

[2] Tech Univ Sofia, Dept Fundamentals Elect Engn, Sofia 1756, Bulgaria

来源：

ENERGIES | 2023年 / 16卷 / 12期

关键词：

transformer; temperature field; 3D FEM modeling; thermal resistances;

D O I：

10.3390/en16124581

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

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.

引用

页数：13

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