A Novel Transformer Winding Design Strategy for Efficiency Improvement and Harmonic Suppression in Industrial Power System  

作　　者：Qianyi Liu Fang Liu Yi Yang Yanjian Peng Kang-Zhi Liu Ao Wang 

机构地区：[1]the School of Automation,Central South University,Changsha 410083,China [2]the College of Electrical and Information Engineering,Hunan University,Changsha 410082,China [3]the Department of Electrical and Electronic Engineering,Chiba University,Chiba 263-8522,Japan [4]Jiangsu Province Engineering Research Center of High-level Energy and Power Equipment,Changzhou University,Changzhou 213164,China

出　　处：《Protection and Control of Modern Power Systems》2024年第6期30-41,共12页现代电力系统保护与控制(英文)

基　　金：supported in part by the National Natural Science Foundation of China(No.52207146);in part by the Jiangsu Province Engineering Research Center of High-Level Energy and Power Equipment(No.JSNYDL-202401);in part by the Science and Tech-nology Innovation Program of Hunan Province(No.2023GK2007);in part by the Natural Science Founda-tion of Hunan Province of China(No.2024JJ3033);in part by the National Natural Science Foundation of China(No.62373373).

摘　　要：Large-power industrial power supply system is generally recognized as high energy-consuming,while the rectifier transformer is the key for efficiency promotion.This article proposes a novel transformer winding design strategy with the aims of harmonic elimination and loss reduction.By means of the innovative impedance matching design,the harmonic magnetic potential self-balance between the secondary windings is realized for harmonic suppression.Considering the impedance constraint and the margin of structural parameters,the method of resistance loss reduction is explored for the proposed transformer by optimizing the dimension parameters.The transformer-filter combination is first modeled to reveal the filtering principle and obtain the impedance precondition.Then,the transformer efficiency is optimized within the constraints.At last,the transformer prototype together with the power supply system is tested.The experimental results show that the transformer efficiency can be improved by 0.81%,and the current total harmonic distortion at primary side is dropped by 50%.

关 键 词：Power quality industrial power system rectifier transformer efficiency improvement. 

分 类 号：TM4[电气工程—电器]