关键词: 输电线路, 舞动区域划分, 舞动系数法, 舞动发生频率法

Abstract:

In recent years, the accidents caused by galloping of power transmission lines frequently occur, and the area affected by galloping is increasing. Thus it is important to make a galloping distribution map for differential anti-galloping design both in technical and economic aspects. The core for making a galloping distribution map is to establish a scientific zoning method for galloping region. This paper introduces the galloping frequency method and galloping coefficient method and compares their application ranges and their merits and disadvantages. A case study is carried out by taking the Panjin and Dalian regions of the Liaoning provinces as an example and galloping coefficient method is used to make the zoning map of galloping. The case study shows that the distribution of galloping intensity obtained by the galloping coefficient method is in agreement with the practical situation.