三沪直流工程导线舞动防治措施研究

Study on Galloping Prevention in San-Hu DC Transmission Project

鉴于导线舞动主要由覆冰及其截面形状、风速及其方向、导线系统的自身参数3个方面的因素形成，有针对性地从气象条件考虑，避开易于形成舞动的覆冰区域与线路走向；从机械与电气的角度，提高线路系统抵抗舞动的能力；从改变与调整导线系统的参数出发，采取各种防舞装置。结合三沪直流工程的实际情况．提出采用防舞器及转动线夹式间隔棒的综合防舞措施。

Galloping is caused by three major factors, such as covered ice and its cross-section shape, wind speed and its direction, and conductor＇s own parameters. Considering weather conditions, the transmission line should avoid icing region and direction that tend to form galloping; from mechanical and electric point of view, galloping resistance of the line system should be increased; by changing and adjusting line parameters, antigalloping measures should be taken. Using San-Hu DC project as an example, galloping prevention method that uses damper and spacer with rotating clamp is proposed.