The magnetic coupling of filter inductors is widely utilized in various power electronics application fields, including most commonly implemented dc-dc converters in electric vehicle charger systems, in order to enhance the filtering performance while maintaining the minimal filter size. The optimal distribution of self and mutual inductance of the coupled inductor is regarded as one of the important design tasks with respect to the coupling factor. This article proposes an explicit mathematical form of the optimized coupling factor design of a generalized n -winding coupled inductor, which generates the least size of inductor current ripple in phase-staggered multiparalleled dc-dc converters. The general equations for the n -winding coupled inductor are verified through the example case of the three-winding coupled inductor. The experimental results successfully confirmed the newly proposed method of obtaining the optimal coupling factor.

中文翻译：

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多绕组耦合电感DC-DC变换器电感电流纹波最小耦合系数优化设计

滤波电感器的磁耦合广泛用于各种电力电子应用领域，包括电动汽车充电器系统中最常用的 DC-DC 转换器，以提高滤波性能，同时保持最小的滤波器尺寸。耦合电感器的自感和互感的最佳分布被视为耦合系数方面的重要设计任务之一。本文提出了一个广义的优化耦合因子设计的显式数学形式。n 绕组耦合电感器，它在相位交错的多并联 DC-DC 转换器中产生最小的电感器电流纹波。的一般方程n 绕组耦合电感通过三绕组耦合电感的示例进行验证。实验结果成功证实了新提出的获得最佳耦合因子的方法。