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Modeling of the Dc-Biased Stray-Field Loss of Magnetic Steel Plate Based on Compensator of Leakage Flux
Pages: 38-44
Year: Issue:  8
Journal: Transactions of China Electrotechnical Society

Keyword:  Power transformerDC biasmagnetic steel platestray-field loss;
Abstract: In order to study the stray-field loss properties of the transformer structural parts under various dc biased condition, which are made of the magnetic steel plate(Q235B), a test model with compensator of leakage flux is proposed and manufactured in this paper. The distribution of stray-field loss is investigated in detail based on the test model. The different electromagnetic behavior of the magnetic steel plate under the interaction between the ac exciting source and the dc exciting source is also examined. The stray-field loss and leakage flux of magnetic steel plate under different dc-biased magnetizations is obtained experimentally and the comparison of measured results is carried out. These have important significance in improving the performance of magnetic shielding by optimizing design.
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