变压器温度和机械振动特性的仿真与分析  

Simulation and Analysis of Temperature Mechanical Vibration Characteristics of Transformers

作　　者：曹辰[1] 路敦林 王雪 于群英 徐博文 陈星 CAO Chen;LU Dunlin;WANG Xue;YU Qunying;XU Bowen;CHEN Xing(Shenyang University of Technology,Shenyang 110870,China;Electric Power Research Institute of State Grid Jilin Electric Power Co.,Ltd,Changchun 130022,China;Department of Civil Engineering,Xi'an Jiaotong-Liverpool University,Suzhou 215123,China;State Grid of Liaoning Electric Power Research Institute Co.,Ltd.,Shenyang 110122,China)

机构地区：[1]沈阳工业大学电气工程学院,辽宁沈阳110870 [2]国网吉林省电力有限公司电力科学研究院,吉林长春130022 [3]西交利物浦大学土木工程学院,江苏苏州215123 [4]沈阳变压器研究院有限公司,辽宁沈阳110122

出　　处：《变压器》2024年第1期17-23,共7页Transformer

基　　金：国家自然科学基金(52107157);国网吉林省电力有限公司科技项目(2023-37)。

摘　　要：为了进一步分析变压器的温度场分布特性与变压器铁心振动特性,作者以一台10kV油浸变压器为样机,进行仿真分析与振动试验测试。首先建立变压器温度场仿真模型,得到变压器铁心的最大温升,最大温度区域集中在B相铁心柱和铁心窗。然后搭建电磁固多物理场耦合的变压器铁心磁致伸缩振动模型,得到铁心磁场大小和ABC三相的振动加速度。最后搭建变压器铁心磁致伸缩采集平台,对变压器进行了空载振动信号监测,由此分别得到了铁心A、B两相的振动的加速度,仿真结果和试验结果两者相互比较,数值大小相同。In order to further analyze the temperature field distribution characteristics and vibration characteristics of transformer core,the author takes a 10kV oil-immersed transformer as a prototype to carry out simulation analysis and vibration test.First,the simulation model of transformer temperature field is established,and the maximum temperature rise of transformer core is obtained.The maximum temperature area is concentrated in B-phase core column and core window.Then,the magnetostrictive vibration model of transformer core coupled with electromagnetic solid and multi-physical field is built,and the magnetic field size of the core and the vibration acceleration of ABC phase are obtained.Finally,A magnetostrictive acquisition platform was built to monitor the no-load vibration signal of the transformer,and the acceleration of the vibration of the two phases of the core A and B are obtained respectively.The simulation results are compared with the test results,and the values are the same.

关 键 词：变压器 机械振动 温度场 多场耦合 试验 

分 类 号：TM401.1[电气工程—电器]