Frequency-Dependent Characteristic of Leakage Inductance in High-Power High-Frequency Transformer

被引：0
|
作者：
Kang, Jinsong [1 ]
Wu, Kaili [1 ]
Li, Wei [1 ]
Mu, Siyuan [1 ]
机构：
[1] Tongji Univ, Coll Elect & Informat Engn, Shanghai, Peoples R China
来源：
2018 IEEE INTERNATIONAL POWER ELECTRONICS AND APPLICATION CONFERENCE AND EXPOSITION (PEAC) | 2018年
基金：
国家重点研发计划;
关键词：
high-frequency transformer; leakage inductance; frequency-dependent characteristic; finite element method;
D O I：
暂无
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：
The leakage inductance of high-power high-frequency transformers is a key factor for bidirectional full-bridge DC/DC converters. The frequency dependent characteristic curve of leakage inductance in a wide frequency band is presented using analytical method, which can be divided into three regions and verified by comparing with finite element simulation. Also, the concept of turning frequency is proposed and the changing trend of turning frequency is studied for transformers with varying-thickness copper foils. Below the turning frequency, the simulation model simplification is implemented by replacing multi-layer copper foil with single-layer copper foil with the same thickness, which is verified by comparing the three-dimensional finite element calculation result with the measurement.
引用
收藏
页码：600 / 605
页数：6
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