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Characteristics Analysis of the Square Laminated Core under dc-biased Magnetization by the Fixed-point Harmonic-balanced FEM.
- Source :
-
IEEE Transactions on Magnetics . Feb2012, Vol. 48 Issue 2, p747-750. 4p. - Publication Year :
- 2012
-
Abstract
- The ferromagnetic core of power transformer is susceptible to dc bias and has special nonlinear and hysteretic characteristics under dc-biased magnetization. The dc-biasing magnetization curve of a square laminated core (SLC) can be obtained by dc bias test. The harmonic-balanced finite-element method (HBFEM) combined with the fixed-point technique is used to calculate the dc-biasing magnetic field in the SLC based on the measured dc-biasing magnetization curve. A locally convergent method in harmonic domain is presented to determine the fixed-point reluctivity, which can speed up the convergence of harmonic solution. The dc-biasing magnetic fields are computed by using the basic and dc-biasing magnetization curves respectively. The results indicate the dc-biasing magnetization curve is more reasonable than the basic one in the analysis. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 48
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 71538685
- Full Text :
- https://doi.org/10.1109/TMAG.2011.2174776