Finite Element Analysis of Coupled Magneto-Fluid-Thermal Field for Large Current Enclosed Bus Bar

DING Bin; XU Yao-liang; YANG Ning; DAN Shu-heng

doi:10.13296/j.1001-1609.hva.2010.08.020

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Finite Element Analysis of Coupled Magneto-Fluid-Thermal Field for Large Current Enclosed Bus Bar

更新时间：2025-04-26

- Finite Element Analysis of Coupled Magneto-Fluid-Thermal Field for Large Current Enclosed Bus Bar
- High VoltageApparatus Vol. 46, Issue 8, Pages: 31-34(2010)
- 作者机构：
  
  上海电力学院电力系统及自动化学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.08.020
  CLC： TM645
- Published：2010
- 稿件说明：
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[1]丁斌,徐耀良,杨宁,淡淑恒.大电流封闭母线磁-流-热场耦合有限元分析[J].高压电器,2010,46(08):31-34.

DING Bin, XU Yao-liang, YANG Ning, et al. Finite Element Analysis of Coupled Magneto-Fluid-Thermal Field for Large Current Enclosed Bus Bar[J]. High voltageapparatus, 2010, 46(8): 31-34.
[1]丁斌,徐耀良,杨宁,淡淑恒.大电流封闭母线磁-流-热场耦合有限元分析[J].高压电器,2010,46(08):31-34. DOI： 10.13296/j.1001-1609.hva.2010.08.020.

DING Bin, XU Yao-liang, YANG Ning, et al. Finite Element Analysis of Coupled Magneto-Fluid-Thermal Field for Large Current Enclosed Bus Bar[J]. High voltageapparatus, 2010, 46(8): 31-34. DOI： 10.13296/j.1001-1609.hva.2010.08.020.

摘要

针对用解析法计算母线温升时存在的一些问题

笔者讨论了基于磁场-流场-热场耦合有限元分析的母线温升计算方法。首先计算母线的磁场和导体涡流分布

得到焦耳热源;然后基于流场-热场耦合的共轭传热模型

将前面计算得到的焦耳热加载为热源

进行温度场分析和温升计算。比较12500A大电流离相封闭母线的计算温升与该产品型式试验结果

误差小于2℃。该计算方法对于封闭母线的产品设计人员具有一定参考意义。

Abstract

Temperature rise calculation of enclosed bus bar based on finite element analysis of coupled magneto-fluid-thermal field is presented.Through magnetic field and eddy current analysis

the joule heat of bus bar and its metal enclosure is calculated.Then the joule heat is loaded into the conjugate heat transfer model with fluid-thermal field direct coupling to analyze temperature distribution of the bus bar.The error of simulated temperature rise of a 12500 A enclosed bus bar is only about 2℃ compared to the experimental data.

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