Frequency-Dependent Inductance and Winding Loss Model for Gapped Foil Inductors

被引：9
|
作者：
Ewald, Thomas [1 ]
Biela, Juergen [1 ]
机构：
[1] Swiss Fed Inst Technol, D ITET, CH-8092 Zurich, Switzerland
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2022年 / 37卷 / 10期
关键词：
Magnetic cores; Conductors; Windings; Air gaps; Legged locomotion; Inductance; Atmospheric modeling; Fringing effect; inductance; magnetic compo- nents; magnetic field; shielding effect; winding losses;
D O I：
10.1109/TPEL.2022.3169620
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
For comprehensively optimizing high-frequency foil inductors, calculating the increased inductance and the additional eddy current losses due to a two-dimensional magnetic fringing field caused by air gaps in the center leg is mandatory. This article proposes an analytical model that accurately calculates the inductance and the additional eddy current losses in gapped inductors with foil windings. The analytical field expressions are combined into closed-form winding loss and inductance formulas and verified by measurements. Furthermore, the frequency dependency of the inductance due to the shielding effect of the foil conductors is being discussed.
引用
收藏
页码：12370 / 12379
页数：10
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