Inherent vibration features of power transformer winding by finite element method

被引：0

作者：

Wang F.-H. ^{[1
]}

Yang Y. ^{[2
]}

He M.-Z. ^{[1
]}

Du S.-L. ^{[2
]}

Liu S. ^{[2
]}

Yang X. ^{[2
]}

机构：

[1] Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai

[2] Guangdong Electric Power Company Electric Power Research Institute, Guangzhou

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2018年 / 22卷 / 04期

关键词：

Inherent frequency; Power transformer; Vibration; Vibration pattern; Winding;

D O I：

10.15938/j.emc.2018.04.007

中图分类号：

学科分类号：

摘要：

To further understand and master the inherent vibration features of transformer winding, the 3-D finite element model of transformer winding is built to calculate the natural frequency and the corresponding vibration pattern. Meanwhile, the model experiment of some real 10kV power transformer was made on the transformer winding. The results of simulation and experiment match well, which verifies the correctness of the simulation model. It is shown that the vibration patterns corresponding vibration patterns were in different shapes and good symmetry when the winding was under normal condition. When the precompression force of transformer winding was changed, the first four-order natural frequencies were increased with the increasing of precompression in different amplitudes.The high order natural frequency was more sensitive to the variations of precompression. © 2018, Harbin University of Science and Technology Publication. All right reserved.

引用

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页码：51 / 57

页数：6

共 12 条

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