基于磁-结构耦合法的变压器绕组振动特性研究 

王洋，曹晨，徐建源

沈阳工业大学 电气工程学院，辽宁 沈阳 110870 
 

摘 要：基于S11-M-500/35型变压器，利用有限元磁-结构耦合法分别计算了变压器负载运行、第一次短路冲击、第二次短路冲击过程中的变压器绕组径向振动加速度，研究了变压器绕组的磁场分布，以及变压器绕组在不同预紧力下的模态，并通过短路冲击试验对计算结果进行了验证。结果表明变压器绕组在受到短路冲击后，绕组漏磁通密度变大8.7倍，绕组线圈上承受的电磁力变大，绕组振动加速度幅值变大，仿真结果与试验数据吻合良好，为变压器的优化设计和故障诊断提供了理论依据。关键词：变压器绕组；有限元；短路试验 中图分类号：TM403.2 文献标识码：A 文章编号：1007-3175(2016)02-0005-04

Transformer Winding Vibration Characteristic Research Based on Magnetic-Structure Coupling Method 

WANG Yang, CAO Chen, XU Jian-yuan 
School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China 
 

Abstract: Based on the model of transformer S11-M-500/35, this paper used the finite element method to respectively calculate the transformer load operation, the transformer winding radial vibration acceleration in the process of the first short circuit impact and second short circuit impact, and studied the magnetic field distribution of transformer winding and the transformer winding modal under different pre-tightening force, the short-circuit test results verified. The results show that after the transformer winding was impacted by short circuit, the winding leakage magnetic flux density became 8.7 times, the electromagnetic force on winding coils and the winding vibration acceleration amplitude became larger. The simulation result is identical to test data well, which provides the theoretical foundation for optimization design and fault diagnosis of transformers.
Key words: transformer winding; the finite element; short circuit test

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