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The modeling and reduction of the iron loss is increasingly concerned in both analysis and design of large electromagnetic devices under today's extreme excitations. With the development of the HVDC transmission system, the ac power transformer near the HVDC system is often affected by the dc current, which will flow into the windings through earthed neutrals. A laminated iron core under ac-dc hybrid...
The effect of the B-H and Bm-Wt curves under different dc-biased magnetization on iron loss and flux in Si-Fe lamination obtained by a laminated core model is investigated, which has been demonstrated via the numerical modeling results based on model.
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