Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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10 kV变压器铁芯振动特性研究

来源:电工电气发布时间:2022-06-21 13:21 浏览次数:340

10 kV变压器铁芯振动特性研究

王宏升,徐建源,曹辰,范一鸣
(沈阳工业大学 电气工程学院,辽宁 沈阳 110870)
 
    摘 要:为研究变压器铁芯振动特性,以一台 S11-M-200/10 kV 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。
    关键词:变压器;铁芯振动;多场耦合;磁致伸缩
    中图分类号:TM411     文献标识码:A     文章编号:1007-3175(2022)06-0019-05
 
Research on Vibration Characteristics of the Iron Core of 10 kV Transformer
 
WANG Hong-sheng, XU Jian-yuan, CAO Chen, FAN Yi-ming
(School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China)
 
    Abstract: This paper took an S11-M-200/10 kV 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.
    Key words: transformer; vibration of iron core; multi-field coupling; magnetostriction
 
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