A variable magnetic permeability is introduced to the skin effect coefficient to reflect the influence of flux density variation on eddy current losses. The evaluation results show that the new iron loss model can cover a wide range of frequencies without using piecewise functions. Two types of punched edges are defined and the additional iron losses are tested, separated, and modeled, so that the punching and burrs’ connection effects on iron losses can be considered more accurately. The iron loss model proposed in this article is very useful for a more accurate design of high-speed motors including the punching effects.

中文翻译：

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一种新的高频铁损模型，包括由于冲孔和毛刺连接引起的附加铁损

趋肤效应系数中引入了可变磁导率，以反映磁通密度变化对涡流损耗的影响。评估结果表明，新的铁损模型可以在不使用分段函数的情况下覆盖很宽的频率范围。定义了两种冲压边缘，并对附加铁损进行了测试、分离和建模，以便更准确地考虑冲压和毛刺连接对铁损的影响。本文提出的铁损模型对于高速电机的更精确设计（包括冲压效应）非常有用。