高压电器2026，Vol.62Issue(1)：69-78,10.DOI:10.13296/j.1001-1609.hva.2026.01.009
基于磁导—电容类比法的高频变压器电磁建模及参数提取方法
Electromagnetic Modeling and Parameter Extraction Method of High-frequency Transformer Based on Permeability-capacitance Analogy
摘要
Abstract
High-frequency transformers are widely used in new energy power generation,electric vehicles,and large-scale DC source interconnection systems.It is of great significance to set up a high-frequency transformer electro-magnetic model,consider the nonlinear characteristics of the iron core,predict the frequency-variable leakage in-duction and frequency-varying AC resistance of the transformer under high-frequency conditions.The permeability-capacitance analogy,compared with the traditional coupled inductance model and reluctance-resistance analogy model,has the advantages of simple topology,clear energy relationship,and can be applied to non-planar modeling.Based on finite element simulation,the magnetic field distribution of the core high-frequency transformer is ana-lyzed and the magnetic circuit model of the transformer is set up.The hysteresis effect of the core is simulated by the Preisach model considering the reversible component.Based on the Maxwell eddy current field calculator,the leakage magnetic energy and average flux in the leakage magnetic region are extracted to calculate the leakage mag-netic permeance.Combined with the Foster equivalent circuit,the frequency-dependent effects of the winding un-der hgih frequency conditions are simulated.A gyrator-permeability model of the transformer is developed.The cor-rectness of such parameters as inductance and resistance of the model is verified by comparison with the short cir-cuit experimental result of the transformer.Finally,the transformer model is applied to the isolated dual-active full-bridge DC-DC converter(DAB-IBDC)to verify the applicability of the model.关键词
高频变压器/电磁仿真/漏电感/磁导—电容类比/Preisach模型/有限元Key words
high-frequency transformer/electromagnetic simulation/leakage inductance/permeability-capaci-tance analogy/preisach model/finite element引用本文复制引用
陈彬,王川源,贾燕峰,丁锐鑫,张少峰,李飚,王佳琳..基于磁导—电容类比法的高频变压器电磁建模及参数提取方法[J].高压电器,2026,62(1):69-78,10.基金项目
国家自然科学基金(青年科学基金项目)(52107006) （青年科学基金项目）
湖北省自然科学基金面上项目(2021CFB149).Project Supported by National Natural Science Foundation of China(Youth Science Program)(52107006),Natural Science Founda-tion of Hubei Province(2021CFB149). （2021CFB149）
