期刊论文

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

Zhou, Y.

中文

高压电器

1001-1609

2020

56

3

224-229

10.13296/j.1001-1609.hva.2020.03.033

______________________________ 收稿日期：2019⁃10⁃21； 修回日期：2019⁃12⁃23 基金项目：贵州电网防冰减灾重点实验室研究项目(GZ2015-2-0055)；国家自然科学基金资助项目(51307009)。 Project Supported by the Key Laboratory of Ice Disaster Prevention of Guizhou Power Grid CoLtd(GZ2015-2-0055),National Natural Science Foundat of China (51307009).

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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。

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-freque...