高压输电线路耦合共振除冰技术分析

doi:10.11930/j.issn.1004-9649.2014.11.53.5

中国电力 ›› 2014, Vol. 47 ›› Issue (11): 53-58.DOI: 10.11930/j.issn.1004-9649.2014.11.53.5

高压输电线路耦合共振除冰技术分析

吕锡锋¹, 何青¹, 赵晓彤²

1. 华北电力大学电站设备状态监测与控制教育部重点实验室,北京 102206;
2. 中国电力科学研究院,北京 100192

收稿日期:2014-06-29 出版日期:2014-11-18 发布日期:2015-12-08
作者简介:吕锡锋（1981—）,男,山东莱西人,博士研究生,从事高压输电线路覆冰监测与防治技术研究。E-mail: lvximin@163.com
基金资助:
中央高校基本科研业务费专项资金资助（11QX49）; This work is supported by the Fundamental Research Funds for the Central Universities (11QX49)

Analysis on the De-icing Technology of Coupled Resonance for High Voltage Transmission Line

LV Xi-feng¹, HE Qing¹, ZHAO Xiao-tong²

1. Laboratory of Condition Monitoring and Control for Power Plant Equipment (North China Electric Power University), Ministry of Education, Beijing 102206, China;
2. China Electric Power Research Institute, Beijing 100192, China

Received:2014-06-29 Online:2014-11-18 Published:2015-12-08

摘要/Abstract

摘要： 高压输电线路除冰是电网安全运行的有力保障,为提高线路的除冰效率,提出一种耦合共振除冰方法。重点对覆冰导线做动力特性分析和实验测试,计算分析圆柱形、椭圆形和扇形雨凇导线的共振除冰频率,并考察覆冰区域应力分布,通过与实验结果比较发现,覆冰导线共振产生的应力大于覆冰破碎强度,论证了该方法的有效性和可行性,为输电线路耦合共振除冰提供参考依据。

关键词: 输电线, 除冰, 耦合振动, 动力学特性, 压缩强度, 导线覆冰, 测试

Abstract: Development of de-icing technology for high voltage transmission line is a guarantee for the safe operation of power grid. In order to improve the de-icing efficiency of transmission lines, a local coupling resonance-based de-icing method is proposed in this paper. The focus of this study is put on the dynamic characteristics analysis of the iced wires and the experimental test. The resonance frequency of the cylindrical, oval and fan shaped glaze conductors are calculated, and the resonance-induced stress distribution in the iced area is investigated. A comparison with tested results shows that the resonance-induced stress of constraint section is greater than the crushing strength of ice, which validates the efficiency and feasibility of the method and can provide a theoretical basis for the de-icing technology of coupling resonance for transmission lines.

Key words: transmission line, deicing, coupled vibration, dynamic characteristics, compressive strength, conductor icing, test

中图分类号:

TM752⁺.5

吕锡锋, 何青, 赵晓彤. 高压输电线路耦合共振除冰技术分析[J]. 中国电力, 2014, 47(11): 53-58.

LV Xi-feng, HE Qing, ZHAO Xiao-tong. Analysis on the De-icing Technology of Coupled Resonance for High Voltage Transmission Line[J]. Electric Power, 2014, 47(11): 53-58.

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高压输电线路耦合共振除冰技术分析

Analysis on the De-icing Technology of Coupled Resonance for High Voltage Transmission Line

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高压输电线路耦合共振除冰技术分析

Analysis on the De-icing Technology of Coupled Resonance for High Voltage Transmission Line

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