跨越高速铁路输电线路绝缘子振颤分析  

Vibration Behavior of Insulators of Transmission Line When Crossing G-Series High-Speed Railway

作　　者：王欣欣 赵建平 邓慰[2] 赵博 王立福 魏晌 王建 WANG Xinxin;ZHAO Jianping;DENG Wei;ZHAO Bo;WANG Lifu;WEI Xiang;WANG Jian(Electric Power Research Institute of State Grid Xinjiang Electric Power Co.,ltd.,Urumqi 830011,China;Wuhan NARI Limited Liability Company,State Grid Electric Power Research Institute,Wuhan 430074,China;State Grid Xinjiang Electric Power Co.,ltd.,Urumqi 830000,China)

机构地区：[1]国网新疆电力有限公司电力科学研究院,乌鲁木齐830011 [2]国网电力科学研究院武汉南瑞有限责任公司,武汉430074 [3]国网新疆电力有限公司,乌鲁木齐830000

出　　处：《电瓷避雷器》2022年第6期174-179,共6页Insulators and Surge Arresters

基　　金：国网新疆电力有限公司科技项目(编号:5230DK20000F)。

摘　　要：跨越高铁线路绝缘子振颤行为会引发导线和金具的损伤。为了获得绝缘子振颤运动规律,研制了压电纳米传感器,来分析了绝缘子振颤的运动幅值和频率的变化。结果表明,高速列车带来的绝缘子振颤频率低于100Hz,不会引起输电线路的共振,但会加剧导地线和绝缘子金具的磨损;绝缘子振颤位移与火车方向基本相同,振颤幅值最大约8cm,绝对位移量最大超过5cm。建议采用运行维护、在线监测和线路设计等应对措施,来提升跨越高铁的输电线路运行安全水平。Vibration behaviors of insulators crossing G-series high-speed railway transmission line induce the damage of conductors and fittings.In order to obtain the vibration motion law of insulators,piezoelectric nanosensors are developed to get amplitude and frequency variations of insulator vibrations.The results revealed that frequency variations of insulator vibrations caused by high-speed trains are under 100Hz,which do not cause resonance of the transmission lines but intensify the wear of ground conductors and insulator fittings;the vibration displacement of insulator is basically the same as the direction of train,the maximum vibration amplitude is about 8cm,and the maximum absolute displacement is over 5cm.Measurements such as operation maintenance,online monitoring and line design are suggested to improve the safety level of transmission line operation across high-speed railway.

关 键 词：绝缘子 高铁 架空线路 振颤 磨损 风害区域 

分 类 号：TM216[一般工业技术—材料科学与工程]