10kV变压器铁芯振动特性研究  

Research on Vibration Characteristics of the Iron Core of 10kV Transformer

作　　者：王宏升 徐建源[1] 曹辰[1] 范一鸣 WANG Hong-sheng;XU Jian-yuan;CAO Chen;FAN Yi-ming(School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学电气工程学院,辽宁沈阳110870

出　　处：《电工电气》2022年第6期19-23,共5页Electrotechnics Electric

摘　　要：为研究变压器铁芯振动特性,以一台S11-M-200/10kV油浸式变压器为对象,建立三维瞬态仿真模型,进行电路-磁场-固体力学的多场耦合仿真,计算分析了空载下铁芯内部磁场分布和磁致伸缩振动特性,结果表明施加预紧力条件下,铁扼z方向和铁芯柱x方向的振动加速度值较大。在此基础上,采集该变压器空载条件下B相铁芯顶部振动加速度,对比结果表明该仿真模型能够准确反映铁芯振动特性。This paper took an S11-M-200/10kV oil-immersed transformer as the study object to research the vibration characteristics of the iron core.It established a 3D transient simulation model to carry out the multi-field coupling simulation of circuit-magnetic field-solid mechanics.It calculated and analyzed the magnetic internal field distribution and magnetostrictive vibration characteristics of the iron core under no load.The results show that the vibration acceleration of iron choke z-direction and core column x-direction increased under the pre-tightening force.Based on the result,this study collected the vibration acceleration of the top of the B-phase iron core under the no-load condition of the transformer.The comparison results show that the simulation model could reflect the vibration characteristics of the iron core.

关 键 词：变压器 铁芯振动 多场耦合 磁致伸缩 

分 类 号：TM411[电气工程—电器]