Back to Search Start Over

Analytical Calculation of Static Leakage Inductances of HF Transformers Using PEEC Formulas.

Analytical Calculation of Static Leakage Inductances of HF Transformers Using PEEC Formulas.

Authors :
Margueron, Xavier
Keradec, Jean-Pierre
Magot, David
Source :
IEEE Transactions on Industry Applications; Jul/Aug2007, Vol. 43 Issue 4, p884-892, 9p
Publication Year :
2007

Abstract

When the total current going through a transformer window is equal to zero, only a negligible part of the magnetic energy reaches its core. This is shown by finite-element-method simulations carried out on several two-winding transformers having different shapes. Moreover, induction and energy-density values obtained by 3-D simulations and by 2-D approximations are very close to each other. These two key observations justify the use of formulas that give the induction created by straight rectangular cross-sectional wires, as used in the partial-element-equivalent-circuit method, to compute the window field and, thus, to value the leakage inductances. To refine this approach, weak magnetic-core effects are accounted for by introducing the magnetic images of currents that flow in the windings. A comparison between the calculated values and measured ones is provided. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00939994
Volume :
43
Issue :
4
Database :
Complementary Index
Journal :
IEEE Transactions on Industry Applications
Publication Type :
Academic Journal
Accession number :
26111057
Full Text :
https://doi.org/10.1109/TIA.2007.900449