DocumentCode :
2422466
Title :
Determination of winding losses of high frequency planar-type transformer using finite-element method
Author :
Foo, C.F. ; Gong, X.H.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
fYear :
1996
fDate :
23-25 Sept. 1996
Firstpage :
477
Lastpage :
482
Abstract :
At high frequency the winding losses of the power transformer due to skin and proximity effects becomes a significant component in the loss calculation of the transformer efficiency. This paper examines the winding losses associated with these effects for planar-type low-profile transformers that are suitable for high frequency power supply application. The transformer winding AC resistance and leakage inductance are investigated for the different winding arrangements. 2D and 3D finite-element methods are used to study the flux density distribution in the transformer window area and the current density distribution in the winding conductors.
Keywords :
current density; electric resistance; finite element analysis; high-frequency transformers; inductance; magnetic flux; magnetic leakage; power supplies to apparatus; skin effect; transformer windings; 2D finite-element method; 3D finite-element method; current density distribution; flux density distribution; high frequency planar-type transformer; high frequency power supply; loss calculation; low-profile transformers; proximity effects; skin effects; transformer efficiency; transformer window area; winding AC resistance; winding conductors; winding leakage inductance; winding losses;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Power Electronics and Variable Speed Drives, 1996. Sixth International Conference on (Conf. Publ. No. 429)
ISSN :
0537-9989
Print_ISBN :
0-85296-665-2
Type :
conf
DOI :
10.1049/cp:19960961
Filename :
708402
Link To Document :
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