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2-D Semi-Analytical Modeling of Eddy Currents in Multiple Non-Connected Conducting Elements

机译:多个非连接导体中涡流的二维半解析建模

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摘要

This paper concerns the semi-analytical modeling of parasitic eddy current distributions and forces in electromagnetic devices. The harmonic, Fourier-based, model is extended to incorporate a position-dependent conductivity, and restrictions on the induced current density are added to model eddy currents in non-connected conducting elements. To model time-dependent behavior of eddy currents, multiple time harmonics can be incorporated in the solutions. The developed method is verified using the finite-element method for a wide range of frequencies. The model is applied to a coreless linear motor with electrically conducting cooling plates, and the parasitic force is analyzed.
机译:本文涉及电磁设备中寄生涡电流分布和力的半解析模型。扩展了基于傅立叶的谐波模型,以包含与位置相关的电导率,并且对感应电流密度进行了限制,以对未连接的导电元件中的涡流进行建模。为了对涡流的时间相关行为进行建模,可以在解决方案中合并多个时间谐波。使用有限元方法对广泛的频率范围验证了所开发的方法。该模型被应用于带有导电冷却板的无芯线性电动机,并分析了寄生力。

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