Analytic design method based on. homothetic shape of magnetic cores for high-frequency transformers

被引：31

作者：

Forest, Francois ^{[1
]}

Laboure, Eric

Meynard, Thierry

Arab, Mohand

机构：

[1] Univ Montpellier 2, LEM, F-34095 Montpellier, France

[2] French Natl Res Inst Transport & Safety, F-94235 Cachan, France

[3] LEEI, UMR, F-31071 Toulouse, France

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2007年 / 22卷 / 05期

关键词：

AC resistance; winding losses;

D O I：

10.1109/TPEL.2007.904251

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An analytic formulation dedicated to the design of high-frequency power transformers is presented. This approach is based on the area product, and homothetic core shapes are considered. The temperature increase of the transformer is one of the main input data. Winding losses including the effect of eddy currents are calculated as well as core losses. An original model of magnetic losses valid over a wide frequency range of the common ferrite materials is introduced. The analytic formulation is validated by design examples concerning transformers that have been realized and tested. It is finally applied to study the evolution of power density versus operating frequency or power for different winding configurations or magnetic materials.

引用

页码：2070 / 2080

页数：11

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