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A coupled analytical-numerical approach for optimal sizing of power inductors

机译：耦合分析数值方法可优化功率电感器的尺寸

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摘要

An optimal sizing methodology is presented in this paper. It is applied to a foil-coil powder core power inductor destined to a new generation inverter designed by Valeo for hybrid and full-electric vehicles. The methodology includes a preliminary analytical calculation and a numerical optimization aimed at minimizing the component size. Unlike bulk magnetic alloys or ferrites, the magnetic non-linearity of powder materials cannot be neglected in the analytical calculation. This non-linearity requires the use of an iterative calculation to search the set of parameters for which the target inductance value and the minimum volume are simultaneously reached The numerical optimization process is based on 2D Finite Element analysis carried out with FEMM software tool and a simplex-type algorithm run by Scilab software. These two freewares are coupled using the scifemm.sci script which is included in the FEMM distribution.
机译：本文提出了一种最佳的上浆方法。它被用于铝箔线圈粉末铁心功率电感器，该电感器将用于法雷奥为混合动力和全电动汽车设计的新一代逆变器。该方法包括初步分析计算和旨在最小化组件尺寸的数值优化。与块状磁性合金或铁氧体不同，在分析计算中不能忽略粉末材料的磁性非线性。这种非线性要求使用迭代计算来搜索同时达到目标电感值和最小体积的参数集。数值优化过程基于使用FEMM软件工具进行的2D有限元分析和单纯形型算法由Scilab软件运行。这两个免费软件使用FEMM发行版中包含的scifemm.sci脚本进行耦合。

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