大风区接触网正馈线新型绝缘防舞装置有效性研究  

Effectiveness Study of New Insulation and Anti-galloping Device for OCS Positive Feeder in the Strong Wind Section

作　　者：赵珊鹏 马爱彪 张友鹏[1] 王思华[1] 张海喜 葛威 ZHAO Shanpeng;MA Aibiao;ZHANG Youpeng;WANG Sihua;ZHANG Haixi;GE Wei(School of Automatic&Electrical Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Rail Transit Electrical Automation Engineering Laboratory of Gansu Province,Lanzhou 730070,China)

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070 [2]甘肃省轨道交通电气自动化工程实验室,甘肃兰州730070

出　　处：《湖南大学学报（自然科学版）》2023年第10期20-30,共11页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(51867013);甘肃省自然科学基金资助项目(20JR5RA414);兰州交通大学天佑创新团队计划资助项目(TY202010)。

摘　　要：为抑制大风环境下兰新高铁接触网正馈线强烈舞动及线间放电现象,基于接触网结构和正馈线舞动特点提出一种新型绝缘防舞装置,其绝缘保护套可提高线间绝缘裕度,扰流段可改变导线整体气动特性.通过仿真分析了不同风速下安装防舞装置前后正馈线气动特性和舞动响应,研究不同覆盖率、扰流段高度和绝缘保护套厚度参数影响下装置的防舞效果,最后分析了新型绝缘防舞装置的电场特性.结果表明:安装新型绝缘防舞装置可以抑制导线舞动且防舞装置覆盖率越高,防舞效果越显著.安装四段防舞装置后导线垂向和横向舞动幅值最高分别下降57.76%和54.68%.装置的扰流段高度为75%绝缘保护套外径且护套厚度为3mm时防舞效果更明显.装置安装后正馈线表面最高场强下降52.96%,距正馈线4 mm圆周平均场强下降36.71%.研究成果可为兰新高铁大风区段接触网正馈线及其他架空输电导线舞动提供合理有效的防舞方案.To restrain the strong galloping and the discharge of transmission line for the overhead contact system(OCS) positive feeder of the Lanzhou-Urumqi high-speed railway under strong wind environment,a new type of insulation and anti-galloping device is proposed based on the OCS structure and the galloping characteristic of the positive feeder,its insulation layer thickness can improve the insulation margin between the line,and the spoiler can change the overall aerodynamic characteristics of the line.The aerodynamic characteristic and galloping response of the positive feeder before and after installation of the anti-galloping device at different wind speed is analyzed by simulation,and the anti-galloping effect of the device under the influence of different coverage rate,spoiler heights,and insulation layer thicknesses parameters is studied,finally,the electric field characteristic of the new insulation and the anti-galloping device is analyzed.The results show that the installation of new insulate antigalloping devices has an anti-galloping effect,and the higher the coverage rates,the more significant of antigalloping effect.After the installation of the four sections,the maximum vertical and horizontal galloping amplitude declined by 57.76% and 54.68%,respectively.The device with a higher spoiler section of 75% outer diameter and 3mm insulation layer thickness has a more obvious anti-galloping effect.The maximum field intensity on the surface of the positive feeder is reduced by 52.96%,and the average field intensity around the 4 mm circle from the positive feeder is reduced by 36.71% after the installation of the device.The research results can provide a reasonable and effective anti-galloping design for the galloping of the OCS positive feeder and other overhead transmission lines in the strong wind section of the Lanzhou-Urumqi high-speed railway.

关 键 词：兰新高铁 接触网 风效应 新型绝缘防舞装置 有效性研究 数值分析 

分 类 号：TM403.3[电气工程—电器]