电源学报2026，Vol.24Issue(2)：10-17,8.DOI:10.13234/j.issn.2095-2805.2026.2.10
基于磁路法的分段气隙磁心电感器磁损计算
Core Loss Calculation of Segmented Air Gap Core Inductor Based on Magnetic Circuit Method
摘要
Abstract
In the design of inductors for switching power supply and transformers,the calculation of magnetic circuit parameters is of significance.Given that it is difficult to accurately calculate the core reluctance and core loss of the center-column segmented air gap,an improved magnetic circuit model of the inductor core is proposed with an EC-type inductor core as an example,which is based on the exact domain solution and conformal transformation.Through theoretical analysis,the analytical expression for the equivalent magnetic reluctance of diffused magnetic flux near the center-column air gap in the magnetic core is derived,and a calculation model of magnetic reluctance for the uneven magnetic flux in the inner angle of the magnetic core is put forward as well.Finally,a 3D model was established in the eddy current field of ANSYS Maxwell simulation software,and physical experiments were also carried out.A comparison of theoretical results with simulation results and experimental data verified the accuracy of the theoretical analysis,providing theoretical guidance and reference for the optimization design and industrial production of various magnetic cores of inductors or transformers used in segmented air gaps in switching power supply.关键词
分段气隙/电感器磁心/磁路模型/扩散磁通/磁阻计算Key words
Segmented air gap/inductor core/magnetic circuit model/diffused magneticflux/reluctance calculation分类
信息技术与安全科学引用本文复制引用
谷爱昱,符立泉,董越..基于磁路法的分段气隙磁心电感器磁损计算[J].电源学报,2026,24(2):10-17,8.基金项目
国家自然青年基金资助项目(62103109) （62103109）
广州市科技计划资助项目(201802010045)This work is supported by National Natural Science Foundation of China under the grant 62103109 （201802010045）
Guangzhou Science and Technology Planning Project under the grant 201802010045 （）
