异形铁轭在能效变压器中的分析应用  

Analysis and Application of Special-shaped Iron Yoke in Energy Efficiency Transformer

作　　者：李建伟 王志 王猛 陈启萍 赵玉荣 张雪梅 LI Jian-wei;WANG Zhi;WANG Meng;CHEN Qi-ping;ZHAO Yu-rong;ZHANG Xue-mei(Shandong Luneng Mount Tai Electric Equipment Co.,Ltd.,Tai'an 271000,China)

机构地区：[1]山东鲁能泰山电力设备有限公司,山东泰安271000

出　　处：《变压器》2022年第12期10-13,共4页Transformer

摘　　要：介绍了一种在铁心心柱截面不变的情况下,采用增加上、下铁轭截面的异形铁轭结构,降低铁轭中磁通密度和损耗,从而降低空载损耗的新方法。并以两台实际工程中的变压器为模型,对空载损耗采用三维仿真分析,并将仿真值与设计值和空载试验值进行对比,结果表明,采用异形铁轭结构,可有效降低铁心损耗,满足了新能效产品实际工程的需要。This paper introduces a new method of reducing the magnetic flux density and loss in the iron yoke by increasing the cross-section of the upper and lower iron yokes under the condition that the cross-section of the core column is unchanged,so as to reduce the no-load loss.Taking two transformers in practical engineering as models,the no-load loss is analyzed by three-dimensional simulation,and the simulation value is compared with the design value and the no-load test value.The results show that the special-shaped iron yoke structure can effectively reduce the core loss and meet the needs of practical engineering of new energy-efficient products.

关 键 词：异形铁轭结构 干式变压器 模拟仿真 

分 类 号：TM405[电气工程—电器]