高电压技术2024，Vol.50Issue(5)：2187-2197,11.DOI:10.13336/j.1003-6520.hve.20231204
紊流随机风场下多相多分裂覆冰输电导线舞动的相间闪络概率评估
Interphase Flashover Probability Evaluation of Multi-phase Multi-bundled Ice-covered Transmission Conductors Galloping in Turbulent Stochastic Wind Field
摘要
Abstract
Aiming at the interphase flashover problem of ice-covered transmission lines when galloping in turbulent sto-chastic wind field,we proposed an interphase flashover probability evaluation method of multi-phase multi-bundled ice-covered transmission conductors.Firstly,the stochastic wind load of ice-covered transmission conductors galloping in turbulent stochastic wind field was generated,and the galloping response in turbulent stochastic wind field was simulated by combining the finite element model of multi-phase multi-bundled ice-covered transmission conductors.Secondly,the failure criterion of interphase flashover of multi-phase multi-bundled ice-covered transmission conductors was construct-ed by an equivalent extreme value distribution method,and a probability evaluation framework of interphase flashover of multi-phase multi-bundled ice-covered transmission conductors in turbulent stochastic wind field was developed based on a probability density evolution method.Finally,an example of a single-span three-phase four-bundled ice-covered trans-mission conductor was analyzed.The results show that,(1)the results of interphase flashover probability evaluation of transmission conductors in different relative positions are obviously different,and compared with the steady wind field,the peak position of interphase flashover probability density curve of transmission conductors in turbulent stochastic wind field moves to the left,and the peak value is obviously reduced;(2)with the increase of turbulivity,interphase flashover is more likely to occur when the ice-covered conductors galloping in the turbulent stochastic wind field;(3)with the in-crease of average wind speed,the probability of interphase flashover of the ice-covered conductors first increases and then decreases,and the probability of interphase flashover of conductors in different initial wind attack angles is obviously dif-ferent.关键词
多相多分裂覆冰输电导线/紊流随机风场/非同步舞动/概率密度演化法/相间闪络/概率评估Key words
multi-phase multi-bundled ice-covered transmission conductors/turbulent stochastic wind field/asynchro-nous galloping/probability density evolution method/interphase flashover/probability evaluation引用本文复制引用
王泽宇,王涛,李正良,吕大刚,谭忆秋..紊流随机风场下多相多分裂覆冰输电导线舞动的相间闪络概率评估[J].高电压技术,2024,50(5):2187-2197,11.基金项目
国家自然科学基金(51611140123) （51611140123）
重庆市博士后研究项目(2022CQBSHBT3009) （2022CQBSHBT3009）
哈尔滨工业大学重庆研究院博士后特别支持计划(KY506023002).Project supported by National Natural Science Foundation of China(51611140123),Chongqing Postdoctoral Research Project(2022CQBSHBT3009),Special Postdoctoral Support Project of Chongqing Research Institute of HIT(KY506023002). （KY506023002）
