输入串联型变换器集成变压器的分布电容影响机制与绕组布局方法  

Stray Capacitances Influences and Windings Layout of the Integrated-Transformer in the Input-Series Converter

作　　者：孟涛[1] 安彦桦 贲洪奇[2] Meng Tao;An Yanhua;Ben Hongqi(College of Mechanical Engineering Heilongjiang University,Harbin 150080 China;College of Electrical Engineering and Automation Harbin Institute of Technology,Harbin 150001 China)

机构地区：[1]黑龙江大学机电工程学院,哈尔滨150080 [2]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001

出　　处：《电工技术学报》2021年第24期5272-5282,共11页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51677056);黑龙江省博士后基金(LBH-Q17145);黑龙江省高校基本科研业务费黑龙江大学专项基金(RCYJTD201802,KJCX201915)资助项目。

摘　　要：基于变压器集成的输入串联型变换器具有各串联电路自然均压、结构简单的优势,适合高压输入多输出场合应用。在高压场合,集成变压器的分布电容储能对变换器影响较大。以该类输入串联型双开关反激式变换器为研究对象,对集成变压器分布电容的影响进行深入研究。在对集成变压器一次绕组各类分布电容储能进行分析的基础上,提出一种可有效抑制分布电容影响的该类集成变压器绕组布局方法。最后,在已搭建的该类输入串联型变换器实验平台上进行实验研究,实验结果验证了理论分析的正确性以及所提方法的可行性。The input-series converters based on transformer-integration have the advantages of active input voltage sharing of each series-module and simple structure,which are suitable for high-input voltage multiple-output applications.In the high voltage applications,these converters can be affected seriously by the energy stored in their integrated-transformers’stray capacitances.Taking this type of input-series two-transistor flyback converter as the object,the influence of the integrated-transformer’s stray capacitances was investigated.Energy storage of stray capacitances in the primary windings of the integrated-transformer was analyzed,and a winding layout scheme of the integrated-transformer was proposed to suppress the influence of stray capacitances.Finally,experiments were carried out on an experimental prototype of this type of input-series converter,which verified the theoretical analysis and feasibility of the proposed scheme.

关 键 词：输入串联 集成变压器 分布电容 绕组布局 

分 类 号：TM46[电气工程—电器]