Dynamic Response of Tension Plate for UHVDC Transmission Lines Under Ice Shedding Loads  

作　　者：Jiajun Si Lixian Zhou Kuanjun Zhu Hongyan Zhao Bin Liu Xiaoming Rui Shengchun Liu 

机构地区：[1]China Electric Power Research Institute,Beijing 100192,China [2]North China Electric Power University,Beijing 102206,China [3]Beijing Institute of Astronautical Systems Engineering,Beijing 100075,China [4]Electric Power Research Institute,Beijing 100192,China

出　　处：《CSEE Journal of Power and Energy Systems》2022年第3期952-962,共11页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported by the Science and Technology Project of the State Grid Corporation of China“Research on Optimization of Typical Tension Insulator String and Quality Improvement of Key Fittings for UHV Transmission Line”(GCB17201900164).

摘　　要：Ice shedding problems have severely threatened the safety of overhead transmission lines and caused enormous ruptures or failures of the conductors and their accessories.It is of great importance to study the dynamic properties of the transmission lines under ice shedding loads.To perform such analysis,the dynamic behavior of two typical strain sections for UHVDC transmission lines under different ice shedding conditions were simulated in this paper.Then,the dynamic response of the key tension plate as well as its buckling properties was analyzed based on the extacted ice shedding results.Finally,laboratory tests were conducted at the China Electric Power Research Institute to assess the critical value of the buckling of the tension plate.The results show that the key tension plate studied in this paper is primarily influenced by the loads along the transmission lines after taking its dynamic response and buckling properties under synthetic ice shedding conditions into consideration.The short-term fluctuation of the tension should be the major focus in tension plate designs.

关 键 词：Dynamic response ice shedding effect nonlinear buckling tension plate UHVDC transmission lines 

分 类 号：TM773[电气工程—电力系统及自动化]