Effective electromagnetic field analysis using finite element method for high frequency transformers with litz-wire

Author

Suzuki, Yusaku ; Hasegawa, Ikuo ; Sakabe, Shigekazu ; Yamada, Takashi

Author_Institution

JRI Solutions, Ltd., Tokyo

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

4388

Lastpage

4393

Abstract

This work presents an effective electromagnetic field analysis using the finite element method for high frequency transformers with litz-wire. The Joule loss for the litz-wire can be accurately determined by considering both the skin effect and proximity effect. Efficient transformers can be designed by investigating both the impedance characteristics and the heat generation. We show the analysis results of the Joule loss, the iron loss and the temperature in the transformer. The validity of the results has been confirmed by experiments.

Keywords

electromagnetic fields; finite element analysis; high-frequency transformers; Joule loss; electromagnetic field analysis; finite element method; heat generation; high frequency transformers; impedance characteristics; iron loss; litz-wire; proximity effect; skin effect; Character generation; Electromagnetic analysis; Electromagnetic fields; Finite element methods; Frequency; Impedance; Iron; Proximity effect; Skin effect; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4771567