一种低损耗的感应滤波变压器结构参数分层设计方法  

A Low Loss Hierarchical Design Method for Structural Parameters of Inductive Filtering Transformer

作　　者：刘乾易 杨伊 刘芳[1] 刘建峰 王傲 Liu Qianyi;Yang Yi;Liu Fang;Liu Jianfeng;Wang Ao(School of Automation Central South University,Changsha 410083 China;Jiangsu Province Engineering Research Center of High-Level Energy and Power Equipment Changzhou University,Changzhou 213164 China)

机构地区：[1]中南大学自动化学院,长沙410083 [2]常州大学江苏省能源动力高端装备工程研究中心,常州213164

出　　处：《电工技术学报》2025年第6期1695-1706,共12页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(52207146);湖南省重点领域研发计划(2023GK2007);江苏省能源动力高端装备工程研究中心开放课题基金(JSNYDL-202401)资助项目。

摘　　要：大电流、低电压的工业整流系统存在电磁环境差、能耗高等问题,该文以感应滤波整流变压器为对象,提出了一种考虑阻抗匹配的变压器损耗分层优化设计方法,利用Sobol灵敏度算法对变压器参数进行了分层处理,旨在降低优化维度,提升寻优能力。首先,介绍感应滤波变压器绕组排布及接入外部系统方式,建立了考虑负载谐波影响的感应滤波变压器电流传递关系模型,获得了实施谐波抑制的阻抗匹配条件;其次,根据感应滤波变压器设计规范,确定了变压器损耗优化的约束条件与优化参数;然后,通过对优化参数进行Sobol灵敏度分析,确立了分层架构;最后,给定设计参数进行案例分析与仿真验证。结果表明:所提的分层优化方法得到的解最优值和平均值都优于未分层优化结果,具有更好的寻优能力和稳定性,分层优化后变压器总损耗降低11.3%,实施感应滤波后谐波畸变率从8.84%降至4.29%,滤波性能良好,验证了该文方法的有效性。The industrial rectifier system is responsible for converting AC and DC electrical energy,and the electrical operating environment is characterized by high power,high current,and low voltage.It faces significant challenges,such as severe harmonic pollution and power loss.Transformer loss contributes to 40%of the total loss in the industrial rectifier system.Therefore,reducing transformer loss is key to managing the operational environment of the industrial rectifier system.In recent years,the research on the reduction of transformer loss has primarily focused on three areas:improving the material process,optimizing the physical structure,and managing the electromagnetic environment.Previous literature has rarely researched the zero-impedance matching design and performance optimization of inductive filtering transformers.This paper aims to develop a new hierarchical optimization strategy for the multi-objective optimization of the inductive filtering rectifier transformer, considering winding impedance matching. The transformer’s structural parameters reduce operational loss by establishing hierarchical architecture through Sobol sensitivity analysis of parameters. Firstly, the filtering mechanism is revealed based on the topological structure of the inductive filtering rectifier transformer. According to the relationship between voltage and current, impedance-matching conditions for implementing inductive filtering technology are obtained. The correlation between harmonic filtering performance and matching conditions is analyzed. A harmonic filtering rate is proposed, and a constraint of approximately zero equivalent leakage impedance is given for different harmonic filtering rates. Secondly, regarding the high dimension of the transformer structure parameters and the strong interaction effect between the parameters, the Sobol sensitivity analysis algorithm is used to stratify the optimization transformer parameters. Finally, a hierarchical optimization design method is proposed based on an improved differenti

关 键 词：整流变压器 灵敏度分析 阻抗匹配 分层优化设计 

分 类 号：TM41[电气工程—电器]