Characteristics Analysis of the Square Laminated Core under DC-biased Magnetization by the Fixed-point Harmonic-balanced FEM
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| Title | Characteristics Analysis of the Square Laminated Core under DC-biased Magnetization by the Fixed-point Harmonic-balanced FEM |
|---|---|
| Author | Zhao, Xiaojun; Li, Lin; Lu, Junwei; Cheng, Zhiguang; Lu, Tiebing |
| Publication Title | Proceedings of COMPUMAG2011 |
| Editor | Norio Takahashi |
| Year Published | 2011 |
| Place of publication | Sydney |
| Publisher | ICS |
| 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 bias test is carried out to obtain the DC-biasing magnetization curve of a square laminated core (SLC). The harmonic-balanced finite element method (HBFEM) is combined with the fixed-point technique to calculate the magnetic field in the laminated core under DC bias conditions by means of 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. Computation of DC-biasing magnetic field in SLC is performed by means of normal and DC-biasing magnetization curves respectively. Comparison between computed and calculated results indicates DC-biasing magnetization curve should be adopted in calculation of magnetic field under DC-biased magnetization. |
| Peer Reviewed | Yes |
| Published | Yes |
| Alternative URI | http://dx.doi.org/10.1109/TMAG.2011.2174776 |
| Conference name | COMPUMAG2011 |
| Location | Sydney |
| Date From | 2011-07-12 |
| Date To | 2011-07-15 |
| URI | http://hdl.handle.net/10072/43559 |
| Date Accessioned | 2012-01-16; 2012-03-12T05:38:00Z |
| Date Available | 2012-03-12T05:38:00Z |
| Research Centre | Centre for Wireless Monitoring and Applications |
| Faculty | Faculty of Science, Environment, Engineering and Technology |
| Subject | Electrical and Electronic Engineering |
| Publication Type | Conference Publications (Full Written Paper - Refereed) |
| Publication Type Code | e1 |
Please use this identifier to cite this record: http://hdl.handle.net/10072/43559
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