Calculation and Analysis of Transient Temperature Field of Vehicle-mounted Oil-immersed Air-core Reactor

ZHAO Ke; LU Dongsheng; LU Yangze; YANG Jinggang; QIAN Yuhua; ZHANG Xin

doi:10.13296/j.1001-1609.hva.2020.05.011

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Calculation and Analysis of Transient Temperature Field of Vehicle-mounted Oil-immersed Air-core Reactor

更新时间：2025-04-26

- Calculation and Analysis of Transient Temperature Field of Vehicle-mounted Oil-immersed Air-core Reactor
- High VoltageApparatus Vol. 56, Issue 5, Pages: 69-73+78(2020)
- 作者机构：
  
  1. 国网江苏省电力公司电力科学研究院
  2. 国网江苏省电力有限公司
  3. 清华大学电机系电力系统及发电设备控制和仿真国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.05.011
  CLC： TM47
- Published：2020
- 稿件说明：
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[1]赵科,陆东生,卢仰泽,杨景刚,钱玉华,张鑫.车载油浸式空心电抗器瞬态温度场计算和分析[J].高压电器,2020,56(05):69-73+78.

ZHAO Ke, LU Dongsheng, LU Yangze, et al. Calculation and Analysis of Transient Temperature Field of Vehicle-mounted Oil-immersed Air-core Reactor[J]. High voltageapparatus, 2020, 56(5): 69-73+78.
[1]赵科,陆东生,卢仰泽,杨景刚,钱玉华,张鑫.车载油浸式空心电抗器瞬态温度场计算和分析[J].高压电器,2020,56(05):69-73+78. DOI： 10.13296/j.1001-1609.hva.2020.05.011.

ZHAO Ke, LU Dongsheng, LU Yangze, et al. Calculation and Analysis of Transient Temperature Field of Vehicle-mounted Oil-immersed Air-core Reactor[J]. High voltageapparatus, 2020, 56(5): 69-73+78. DOI： 10.13296/j.1001-1609.hva.2020.05.011.

摘要

车载油浸式空心电抗器进行特高压GIL交流耐压试验时工作电流大

绕组发热功率高。为避免过热故障

研究耐压试验情况下车载油浸式空心电抗器的瞬态温度场十分必要。文中应用有限元法耦合计算了二维轴对称电抗器模型的瞬态温度场和绝缘油瞬态流体场

分析了车载油浸式电抗器的温升和散热特性。车载油浸式空心电抗器依靠绝缘油自然对流散热速率有限

文中计算了两种辅助优化散热措施。外部吹风辅助散热措施易于实现

但散热速率提高有限。环境温度降低辅助散热实现难度适中

降温效果好于外部吹风辅助散热。文中计算结果为特高压GIL交流耐压试验提供了理论参考。

Abstract

The current and the heating power of vehicle-mounted oil-immersed air-core reactor are high in GIL AC voltage withstand test.To avoid overheat fault

it is necessary to analyze the transient temperature field of vehiclemounted oil-immersed air-cored reactor.In this paper

the finite element method is applied to calculate the transient temperature filed of the reactor and the flow field of the oil

and the temperature rise and heat dissipation property of the reactor are analyzed.The heat dissipation rate of the reactor through natural convection of insulating oil is limited.The effects of two auxiliary cooling measures are calculated.The external blowing measure is easy to implementbut its cooling effect is unsatisfactory.The ambient temperature reduction measure is not difficult to implement

and its cooling effect is better than that of the external blowing measure.The calculation in this paper may be taken as a reference for UHV GIL voltage withstand test.

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