高压输电线路舞动机理及防治措施

Galloping Mechanism and Prevention Measures of High Voltage Transmission Line

在高压输电线路运行过程中,容易因线路低频、自激振动而出现舞动现象,严重影响了输电线路的安全性,严重时会造成杆塔倒塌、线路断裂问题,不利于电能的安全输送及使用,因此,需要采取科学防治对策,避免高压输电线路舞动现象的发生。文章指出线路舞动所带来的危害,对其主要诱因进行分析,探讨高压输电线路舞动机理,并在此基础上提出有效防治措施。

In the process of high-voltage transmission line operation,it is easy to appear galloping phenomenon due to lowfrequency and self-excited vibration of the line,which seriously affects the safety of the transmission line.In serious cases,it will cause tower collapse and line fracture,which is not conducive to the safe transmission and use of electric energy.Therefore,it is necessary to take scientific prevention and control measures to avoid the occurrence of galloping phenomenon of high-voltage transmission line.This paper first points out the harm of line galloping,analyzes its main causes,discusses the mechanism of high-voltage transmission line galloping,and puts forward effective prevention measures on this basis.