塔线体系脱冰不平衡张力影响因素分析

doi:10.11930/j.issn.1004-9649.201612014

中国电力 ›› 2017, Vol. 50 ›› Issue (11): 96-102.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

黄新波¹, 徐冠华², 肖渊³, 朱永灿¹, 陈贵敏⁴

1. 西安工程大学电子信息学院,陕西西安 710048;
2. 西北工业大学机电学院,陕西西安 710072;
3. 西安工程大学机电工程学院,陕西西安 710048;
4. 西安电子科技大学机电工程学院,陕西西安 710071

收稿日期:2016-12-03 出版日期:2017-11-25 发布日期:2017-11-29
作者简介:黄新波（1975—）,男,山东海阳人,博士后,教授,博士生导师,从事智能电网输变电设备在线监测理论与关键技术的研究。E-mail: huangxb1975@163.com
基金资助:
国家自然科学基金资助项目（51177115）; 教育部“新世纪优秀人才支持计划”（NCET-11-1043）; 陕西省重点科技创新团队计划（2014KCT-16）

Analysis on Influence Factors of Ice-Shedding Unbalanced Tension of Transmission Tower- Line System

HUANG Xinbo¹, XU Guanhua², XIAO Yuan³, ZHU Yongcan¹, CHEN Guimin⁴

1. College of Electronics and Information, Xi'an Polytechnic University, Xi'an 710048, China;
2. School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072 China;
3. College of Mechanical and Electrical Engineering, Xi'an Polytechnic University, Xi'an 710048, China;
4. College of Mechanical and Electrical Engineering, Xidian University, Xi'an 710071, China;

Received:2016-12-03 Online:2017-11-25 Published:2017-11-29
Supported by:
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).

摘要/Abstract

摘要： 导线脱冰会引起导线张力剧烈变化,产生较大的张力差,容易对输电线路造成严重的电气或机械事故。为此利用有限元瞬态动力学方法,建立导线脱冰跳跃力学模型,对脱冰不平衡张力的多个影响因素进行分析,揭示各参数对不平衡张力的影响规律。结果表明：导线脱冰不平衡张力随覆冰厚度、脱冰档档距、脱冰量、突变高差的增加而增加;导线脱冰不平衡张力随连续档数的增加而趋于稳定;当档距一定时,导线脱冰不平衡张力随悬垂绝缘子串长度的增加而减小;脱冰方式的不同对不平衡张力的影响较大。相关成果可为后续线路结构设计以及制定科学合理地除冰融冰措施提供借鉴作用。

关键词: 输电线路, 覆冰, 脱冰, 不平衡张力, 仿真模拟, 影响因素

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.

Key words: transmission line, icing, ice-shedding, unbalanced tension, numerical simulation, Influence factors

中图分类号:

TM753

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.

HUANG Xinbo, XU Guanhua, XIAO Yuan, ZHU Yongcan, CHEN Guimin. Analysis on Influence Factors of Ice-Shedding Unbalanced Tension of Transmission Tower- Line System[J]. Electric Power, 2017, 50(11): 96-102.

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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

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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

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