中国电力2017，Vol.50Issue(11)：96-102,7.DOI:10.11930/j.issn.1004-9649.201612014
塔线体系脱冰不平衡张力影响因素分析
Analysis on Influence Factors of Ice-Shedding Unbalanced Tension of Transmission Tower-Line System
摘要
Abstract
Ice-shedding can cause sharp tension change of the conductor and produce greater tension differences,which can easily cause serious electrical or mechanical accident of transmission lines.Therefore,an ice-shedding vibration mechanical model of conductors is established by the finite element transient dynamic method to analyze the influence factors of ice-shedding unbalanced tensions and to reveal the influence characteristics of various parameters on the unbalanced tensions.The results show that the unbalanced tension of ice-shedding increases with the increase of icing thickness,ice-shedding spans,ice-shedding rates and height differences of mutation;the unbalanced tension of ice-shedding tends to stabilize with the increase of the number of continuous spans;within a certain span,the unbalanced tension of ice-shedding decreases with the increase of suspended insulator length;and different ice-shedding modes has significant impacts on the unbalanced tension.The related research results can provide a reference for the subsequent structure design and formulation of scientific and reasonable ice melting and deicing measures.关键词
输电线路/覆冰/脱冰/不平衡张力/仿真模拟/影响因素Key words
transmission line/icing/ice-shedding/unbalanced tension/numerical simulation/Influence factors分类
信息技术与安全科学引用本文复制引用
黄新波,徐冠华,肖渊,朱永灿,陈贵敏..塔线体系脱冰不平衡张力影响因素分析[J].中国电力,2017,50(11):96-102,7.基金项目
国家自然科学基金资助项目(51177115) （51177115）
教育部“新世纪优秀人才支持计划”(NCET-11-1043) （NCET-11-1043）
陕西省重点科技创新团队计划(2014KCT-16)This work is supported by National Natural Science Foundation of China (No.51177115),and by New Century Talent Supporting Project by education ministry (No.NCET-11-1043),and by Project of Key Science and Technology Innovation Team of Shaanxi (No.2014KCT-16). （2014KCT-16）
