Analysis of laminated cores through a directly coupled 2-D/1-D electromagnetic field formulation
Analysis of laminated cores through a directly coupled 2-D/1-D electromagnetic field formulation
复制标题
通过直接耦合 2-D/1-D 电磁场公式分析叠片铁芯
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
M. Chiampi
中科院分区：
文献类型：
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作者：
O. Bottauscio;M. Chiampi
仅给出摘要表格。叠片铁芯建模中最关键的方面之一是能够评估叠片深度中的集肤效应对片平面中磁通量分布的影响。在这个主题上，作者已经提出了一种基于标准矢量势二维磁场解的计算程序，该程序解释了沿滚动平面流动的涡流对单向磁通和旋转磁通的影响。所提出的程序通过动态磁模型处理层压深度中的扩散现象，包括板厚度中定义的一维电磁场问题的解决方案。 2D（xy 平面）和 1D（z 轴）电磁问题之间的联系需要使用两个嵌套迭代定点 (FP) 方案。这里提出了一种替代方法，通过直接耦合控制二维和一维电磁场问题的方程，以减少整个算法的计算负担，而不影响结果的准确性。
Summary form only given. One of the most critical aspect in the modelling of laminated cores is the capability to evaluate the influence of the skin effect in the lamination depth on the magnetic flux distribution in the sheet plane. On this subject, the authors have already presented a computational procedure, based on a standard vector potential 2D magnetic field solution, which accounts for the effects of eddy currents flowing along the rolling plane both for unidirectional and for rotational fluxes. The proposed procedure handles the diffusion phenomena in the lamination depth by means of a dynamic magnetic model, consisting of the solution of 1D electromagnetic field problems defined in the sheet thickness. The linkage between the 2D (xy-plane) and 1D (z-axis) electromagnetic problems requires the use of two nested iterative Fixed Point (FP) schemes. Here an alternative approach is proposed, by directly coupling the equations governing the 2D and 1D electromagnetic field problems, to reduce the computational burden of the entire algorithm, without affecting the result accuracy.