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

doi:10.11930/j.issn.1004-9649.2014.11.53.5

Abstract

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

CLC Number:

TM752⁺.5

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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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.11.53.5

https://www.electricpower.com.cn/EN/Y2014/V47/I11/53

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