Effect of Local Convection Heat Transfer on High-frequency Excitation Deicing for Transmission Lines

YUAN Xiaolei; ZHOU Yusheng; WANG Y2ongan; XIONG Qiang; WANG Xianjun; MA Xiaohong; DAI Zhou

doi:10.13296/j.1001-1609.hva.2020.03.033

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Effect of Local Convection Heat Transfer on High-frequency Excitation Deicing for Transmission Lines

更新时间：2025-04-26

- Effect of Local Convection Heat Transfer on High-frequency Excitation Deicing for Transmission Lines
- High VoltageApparatus Vol. 56, Issue 3, Pages: 224-229(2020)
- 作者机构：
  
  1. 长沙理工大学电气与信息工程学院
  2. 贵州电网有限责任公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.03.033
  CLC： TM752
- Published：2020
- 稿件说明：
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[1]袁肖雷,周羽生,王永安,熊强,王贤军,马晓红,代洲.局部对流换热对输电线路高频激励融冰的影响[J].高压电器,2020,56(03):224-229.

YUAN Xiaolei, ZHOU Yusheng, WANG Y2ongan, et al. Effect of Local Convection Heat Transfer on High-frequency Excitation Deicing for Transmission Lines[J]. High voltageapparatus, 2020, 56(3): 224-229.
[1]袁肖雷,周羽生,王永安,熊强,王贤军,马晓红,代洲.局部对流换热对输电线路高频激励融冰的影响[J].高压电器,2020,56(03):224-229. DOI： 10.13296/j.1001-1609.hva.2020.03.033.

YUAN Xiaolei, ZHOU Yusheng, WANG Y2ongan, et al. Effect of Local Convection Heat Transfer on High-frequency Excitation Deicing for Transmission Lines[J]. High voltageapparatus, 2020, 56(3): 224-229. DOI： 10.13296/j.1001-1609.hva.2020.03.033.

摘要

在覆冰导线高频激励融冰温度场的分析与计算中

局部对流换热对温度场及高频激励融冰模型有很大影响。对此

文中分析了高频融冰过程中的热量损失和对流换热的影响因素

通过Ansys有限元软件对高频激励融冰模型的电磁场和热分析与计算

揭示了局部对流换热对高频融冰模型温度场及其迎风侧和背风侧的影响

表明了局部对流换热使导线背风侧覆冰先融化脱落

迎风侧覆冰后融化脱落。覆冰导线外表面的温度随对流换热的系数增大而下降

下降速度随对流换热系数增大而减缓。该研究成果有利于进一步改进和优化高频激励融冰计算模型。

Abstract

In the analysis and calculation of the temperature field of the high-frequency excitation deicing

the local convection heat transfer has a great influence on the temperature field and the high frequency excitation deicing model.So the influence factors of heat loss and convection heat transfer in high-frequency deicing process are analyzed in the paper

and the electromagnetic field and thermal analysis of high-frequency excitation deicing are simulated by Ansys finite element software.The local convection heat transfer effect on high-frequency deicing model of temperature field and windward and leeward side are analyzed.The result shows the local convection heat transfer make the ice leeward side of wire melt off first

the ice windward side melt off.The temperature of the outer surface of the iced conductor decreases with the increase of the coefficient of convective heat transfer

and the decreasing speed slows down with the increase of the coefficient of convective heat transfer.It is propitious to further improvement high-frequency excitation deicing method and optimization of ice melting model.

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