Analysis on Elastic and Plastic Deformations of Power Transformer Winding Based on Finite Element Method

ZHANG Haijun; ZHANG Hua; MA Qiang; LIU Yanqin; WANG Shuhong

doi:10.13296/j.1001-1609.hva.2019.06.025

您当前的位置：

首页 >

文章列表页 >

Analysis on Elastic and Plastic Deformations of Power Transformer Winding Based on Finite Element Method

更新时间：2025-04-26

- Analysis on Elastic and Plastic Deformations of Power Transformer Winding Based on Finite Element Method
- High VoltageApparatus Vol. 55, Issue 6, Pages: 170-176(2019)
- 作者机构：
  
  1. 湖北文理学院纯电动汽车动力系统设计与测试湖北省重点实验室
  2. 国网四川省成都电力公司
  3. 西安交通大学电气学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.06.025
  CLC： TM41
- Published：2019
- 稿件说明：
移动端阅览
[1]张海军,张华,马强,刘彦琴,王曙鸿.基于有限元的电力变压器绕组弹塑性变形分析[J].高压电器,2019,55(06):170-176.

ZHANG Haijun, ZHANG Hua, MA Qiang, et al. Analysis on Elastic and Plastic Deformations of Power Transformer Winding Based on Finite Element Method[J]. High voltageapparatus, 2019, 55(6): 170-176.
[1]张海军,张华,马强,刘彦琴,王曙鸿.基于有限元的电力变压器绕组弹塑性变形分析[J].高压电器,2019,55(06):170-176. DOI： 10.13296/j.1001-1609.hva.2019.06.025.

ZHANG Haijun, ZHANG Hua, MA Qiang, et al. Analysis on Elastic and Plastic Deformations of Power Transformer Winding Based on Finite Element Method[J]. High voltageapparatus, 2019, 55(6): 170-176. DOI： 10.13296/j.1001-1609.hva.2019.06.025.

摘要

电力变压器绕组受短路电磁力作用后

可能出现可恢复的弹性变形或不可恢复的塑性变形。文中通过电磁-结构耦合有限元分析

对短路电流冲击作用下的变压器绕组弹、塑性变形特性进行理论分析和三维数值模拟

以揭示绕组弹性和塑性变形机理。首先通过有限元电磁计算分析了绕组内部短路电磁力分布

其中绕组线饼的周向电磁力分布不均是导致绕组变形的重要原因。在弹性变形计算的基础上

依据材料学的弹塑性变形分析理论

构建了绕组累积变形的量化分析模型

能够反映多次短路电磁力作用后绕组变形的累积效应。最后

以一台110 kV/25 000 kVA、双绕组电力变压器模型为例

进行绕组弹、塑性变形计算。结果可以为变压器绕组动稳定性能和绕组塑性变形预测研究提供理论参考。

Abstract

Subjected to short-circuit electromagnetic force

the recoverable elastic deformation or irreparable plastic deformation in power transformer windings may be produced. In this paper

in order to reveal the elastic and plastic deformation mechanism of the winding

the elastic and plastic deformation characteristics of transformer windings under the impact of short-circuit current are analyzed theoretically and numerically by electromagnetic-structural coupling finite element analysis. Firstly

the distribution of the short circuit electromagnetic force in the winding is analyzed by the finite element electromagnetic calculation

in which the uneven distribution of the circumferential electromagnetic force of the winding disc is the important cause of the winding deformation. On the basis of elastic deformation calculation and elastic-plastic deformation analysis theory of materials

a quantitative analysis model of winding cumulative deformation is constructed

which can reflect the cumulative effect of winding deformation after multiple short-circuit electromagnetic forces.Finally

taking an 110 kV/25000 kVA double winding power transformer model as an example

the elastic and plastic deformation of the winding is calculated.The results can provide a theoretical reference for the dynamic stability of transformer windings and the prediction of winding plastic deformation.

关键词

Keywords

references

Views

217

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on Efficiency Optimization of Engineering Electromagnetic Repulsion Mechanism

Lightning Electromagnetic Transient Analysis of Offshore Wind Turbine Based on Finite Element Method

Study on Fatigue Characteristics of Offshore VSC-HVDC Converter Valve Tower in Operation

AUTOMATIC FINITE ELEMENT DIVISION METHOD FOR 3-D ELECTROMAGNETICFIELD BASED ON STL FILE FORMATE

Analysis of the Electric Field of 330 kV Composite Insulator with Grading Rings

Related Author

XU Yuanzhen

FANG Taixun

LYU Wei

LIU Shaofei

ZHANG Liang

ZHANG Jiankai

WANG Jianliang

ZHANG Ping

Related Institution

NR Electric Co., Ltd.

BR Electric Power Electronics Co., Ltd.

School of Artificial Intelligence and Data Science, Hebei University of Technology

Hebei Construction Investment Offshore Wind Power Co., Ltd.

Xi'an XD Power Systems Co., Ltd.

⁰