摘要
反激变换器中高频变压器是核心部件,其效率直接关系到变换器的效率,因此优化设计高频变压器就成为提高效率的关键。通过对反激变压器绕组采用不同结构时所带来不同的涡流损耗和漏感进行分析,得到本文所设计绕组结构二维模型。利用有限元分析软件进行数值仿真,获得的数据证明此模型是可行的。制作出实验样机对其进行实验比较,验证了所设计的高频变压器绕组结构合理,漏感小,效率高,输出的电压的谐波含量低。
High-frequency transformer is the key component of the flyback converter, and its efficiency is directly related to the converter. In order to improve the inverter＇s efficiency, the optimum design of high-frequency transformer becomes very important. A 2D finite element model of the winding structure is built up to calculate the eddy current losses and leakage inductance caused by the different structure of flyback transformer winding. The laboratory prototype of the high frequency transformer has been designed, and the experimental results show that the transformer winding structure is reasonable, low leakage inductance, high efficiency and perfect output voltage waveform.
出处
《电子设计工程》
2011年第24期170-173,共4页
Electronic Design Engineering
关键词
高频变压器
漏感
绕组
涡流损耗
high frequency transformer
leakage inductance
winding
eddy current loss
作者简介
孟明（1967-），男，河北保定人，博士，副教授。研究方向：电力电子、电机及其控制。
