高频变压器分布参数提取及谐振电路设计  

The extraction of high frequency transformer distribution parameter and design of resonance circuit

作　　者：金旦辰 顾小卫 刘彬 孙宜琴 JIN Dan-chen;GU Xiao-wei;LIU Bin;SUN Yi-qin(School of Informatics Science and Technology,Zhejiang Sci-Tech University,Hangzhou 310018,China;School of Computer Science and Technology,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学信息学院,浙江杭州310018 [2]杭州电子科技大学计算机学院,浙江杭州310018

出　　处：《磁性材料及器件》2020年第1期57-60,共4页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(51407156);浙江省科技厅公益技术研究社会发展项目(2016C33018)

摘　　要：高频变压器中存在漏感和分布电容。首先对其建立简化的二维电路模型。再用有限元软件Ansoft Maxwell对高频高压大功率变压器的绕组和铁芯进行二维建模,对建好的模型进行电场和磁场分析。然后用能量法对漏感和分布电容进行提取,最后将提取的分布参数整合到谐振电路中,使电路中的开关元件可以实现软开关,系统运行的损耗得以减小。Leakage inductance and distributed capacitance exist in high frequency transformer.In this paper,a simplified two-dimensional circuit model of high frequency transformer is established.Then the finite element software Ansoft Maxwell was used to build the winding and iron core of high frequency high voltage high power transformer in two dimensions to analyze the electric and magnetic fields of the model.Then the leakage inductance and distributed capacitance are extracted by energy method.Finally,the extracted distribution parameters are integrated into the resonant circuit,resultantly realizing soft switching to reduce the power loss of the system.

关 键 词：高频变压器 谐振电路 分布参数 有限元法 

分 类 号：TM4[电气工程—电器]