中南大学学报（自然科学版）2025，Vol.56Issue(4)：1371-1384,14.DOI:10.11817/j.issn.1672-7207.2025.04.010
架空110 kV输电线路脱冰跳跃影响因素及冰跳抑制方案分析
Analysis of influencing factors of ice jump and ice shedding suppression scheme for overhead 110 kV transmission line
摘要
Abstract
In order to explore the response of multi-span ice-shedding of overhead transmission lines and its suppression scheme,a finite element model of 110 kV Liannan transmission line in Ningxia was established by numerical simulation.The concentrated mass load method was used to simulate the ice-shedding of conductors.The effects of uniform ice-shedding and non-uniform ice-shedding on ice-shedding jump were studied.The relationship between ice-shedding jump height and parameters such as number of spans,line height difference,ice-shedding method,ice-shedding rate,ice thickness was analyzed.Four schemes of interphase spacers to suppress ice-shedding were proposed and compared.The results show that the ice jump height tends to be stable when the spam number of line model exceeds five,and the height difference has little effect on the ice jump.At different ice-shedding rates,the ice jump height of uneven ice-shedding on both sides is the lowest.The thickness of ice coating and the span length have a significant impact on the ice-shedding jump height of the conductor,the conductor tension,the unbalanced tension,and the displacement of the insulator.When the ice thickness exceeds 15 mm,the tension of the conductor exceeds the design upper limit of Liannan transmission line.After installing the spacer,the ice jump height of the ice-shedding span of the conductor decreases,which can reduce by 53.84％at most,and the suppression effect is the best.The research results can provide an important theoretical reference for the design,de-icing method and protection of transmission lines in icing areas.关键词
输电线路/数值模拟/脱冰/动力响应/相间间隔棒Key words
transmission line/numerical simulation/ice-shedding/dynamic response/interphase spacer bar分类
动力与电气工程引用本文复制引用
赵珊鹏,朱子恒,马爱彪,葛磊蛟,张友鹏,车玉龙,任冰,李小平..架空110 kV输电线路脱冰跳跃影响因素及冰跳抑制方案分析[J].中南大学学报（自然科学版）,2025,56(4):1371-1384,14.基金项目
国家自然科学基金资助项目(51867013,52467017) （51867013,52467017）
甘肃省自然科学基金资助项目(25JRRA174) （25JRRA174）
中国铁路北京局集团有限公司科技研究开发计划项目(2024AGD03) （2024AGD03）
天津市自然科学基金多元投入重点项目(22JCZDJC00660)(Projects(51867013,52467017)supported by the National Natural Science Foundation of China （22JCZDJC00660）
Project(25JRRA174)supported by the Natural Science Foundation of Gansu Province （25JRRA174）
Project(2024AGD03)supported by the Science and Technology Research and Development Program of China Railway Beijing Group Co.Ltd. （2024AGD03）
Project(22JCZDJC00660)supported by the Natural Science Foundation of Tianjin) （22JCZDJC00660）
