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首页> 外文期刊>IEEE Transactions on Magnetics >Eddy Current Analysis of a Conductor With a Groove by Surface Integral Equation With One Unknown
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Eddy Current Analysis of a Conductor With a Groove by Surface Integral Equation With One Unknown

机译：用一个未知的表面积分方程分析带槽导体的涡流。

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摘要

In this paper, we study how to solve eddy currents induced in a conductor with a narrow groove in the case of thick skin depth by using surface integral equations, of which unknowns are the surface electric and magnetic currents. When the skin depth is small, the surface integral equations give accurate solutions except around the sharp edge and corner. Some edges and corners of the groove are so close that it is difficult to get accurate solutions; moreover, as the width of the groove becomes narrower, the surface integral equations become ill conditioned. In order to solve these problems, we propose a method to analyze the eddy currents induced in a conductor with a groove by introducing a lumped loop magnetic current, which is formulated by a surface integral equation derived from the normal component of the electric field.
机译：在本文中，我们将研究如何通过使用表面积分方程来解决趋肤深度较厚的情况下，在具有窄沟槽的导体中产生的涡流，该方程的未知数是表面电流和磁流。当蒙皮深度较小时，除了在尖锐的边缘和拐角附近，表面积分方程可提供精确的解决方案。凹槽的某些边缘和拐角非常靠近，以至于很难获得准确的解决方案；此外，随着槽的宽度变窄，表面积分方程变得不适。为了解决这些问题，我们提出了一种方法，该方法通过引入集总环磁电流来分析在带槽导体中感应的涡流，该集磁环磁电流由从电场的法向分量导出的表面积分方程公式化。

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