35kV低频变压器的轻量化设计方法  

A lightweight design method for a 35 kV low-frequency transformer

作　　者：刘黎 尹聪聪 詹江杨 林浩凡 刘云鹏[2] 刘刚[2] LIU Li;YIN Congcong;ZHAN Jiangyang;LIN Haofan;LIU Yunpeng;LIU Gang(State Grid Zhejiang Electric Power Research Co.,Ltd.Research Institute,Hangzhou 310014,China;Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense,North China Electric Power University,Baoding 071003,China;State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310007,China)

机构地区：[1]国网浙江省电力有限公司电力科学研究院,杭州310014 [2]河北省输变电设备安全防御重点实验室(华北电力大学),河北保定071003 [3]国网浙江省电力有限公司,杭州310007

出　　处：《浙江电力》2024年第4期129-136,共8页Zhejiang Electric Power

基　　金：国网浙江省电力有限公司科技项目(5211DS22000D)。

摘　　要：针对低频变压器铁心尺寸、重量等较传统工频变压器增大的问题,提出了一种35 kV低频变压器的轻量化设计方法,综合考虑变压器损耗、重量和尺寸进行多目标优化。首先,依据国家标准及设计手册给出低频变压器初始结构。然后,选取变压器尺寸、重量与损耗作为优化目标。其次,根据低频变压器特点选取相应的优化变量并给出约束条件。最后,通过遗传算法对低频变压器进行优化设计,并进行对比分析,结果表明,总损耗减少了11.04%,铁心、线圈重量减少了4.36%、6.71%,铁心中心距减少了12.85%。To Address the issue of increased core size and weight in low-frequency transformers compared to conven⁃tional power-frequency transformers,a lightweight design method for a 35 kV low-frequency transformer is pro⁃posed.This method involves multi-objective optimization of transformer losses,weight,and dimensions.Firstly,the initial structure of the low-frequency transformer is determined based on national standards and design manuals.Sub⁃sequently,transformer size,weight,and losses are selected as optimization objectives.Following this,specific opti⁃mization variables are chosen based on the characteristics of low-frequency transformers,and corresponding con⁃straints are defined.Finally,a genetic algorithm is utilized to optimize the low-frequency transformer.A comparative analysis reveals a reduction of 11.04%in total losses,along with a decrease of 4.36%and 6.71%in core and coil weights,respectively,and a 12.85%reduction in core center distance.

关 键 词：低频变压器 多目标优化 遗传算法 

分 类 号：TM431[电气工程—电器]