中文摘要：

为了研究电力变压器内由导磁钢板和取向硅钢片组成的结构件在实际工作状态下的电磁特性,基于Problem21基准族中的Model B及Model M1,考察不同激励方式下导磁钢板及取向硅钢片的损耗和磁通的分布,研究不同激励源之间的交叉作用对导磁钢板和取向硅钢片特性的影响,提出解决计算三维非线性和各向异性涡流问题的实用措施,不同激励方式下铁损和磁通的计算结果和测量结果具有较好一致性,所得结果和结论有助于通过优化设计来提高电力变压器的性能指标。

英文摘要：

In order to study the working electromagnetic properties of the transformer structural parts,which are made of the magnetic steel plate and the grain-oriented silicon steel.The effect of the excitation patterns on both the iron loss and flux inside the solid magnetic steel plate and the laminated silicon steel sheets were investigated in detail based on P21-B and P21-M1.The different electromagnetic behavior of the laminated or solid magnetic steel under the interaction between individual excitations was also examined.Some practical approaches were proposed to solve the nonlinear and anisotropic eddy current problems under 3D excitation conditions.All the calculated and measured results of both iron loss and flux for different test cases are practically in good agreement.