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（1 國家電網(wǎng)河南省電力公司電力科學(xué)研究院， 鄭州  450052； 2 重慶大學(xué)土木工程學(xué)院，重慶 400044； 3 重慶科技學(xué)院建筑工程學(xué)院， 重慶 401331）

［摘要］覆冰舞動(dòng)是輸電線路的重要災(zāi)害之一，對(duì)輸電線路舞動(dòng)機(jī)理及防舞措施的研究具有重要意義。采用原型輸電線路的幾何、物理參數(shù)以及D形覆冰八分裂導(dǎo)線的氣動(dòng)力參數(shù)，建立了基于結(jié)點(diǎn)六自由度且考慮抗彎剛度及軸向與扭轉(zhuǎn)耦合變形的三結(jié)點(diǎn)分裂導(dǎo)線模型，研究了加密間隔棒、分散間隔棒和間隔棒鉸接對(duì)線路舞動(dòng)的影響。結(jié)果表明：模型動(dòng)力特性與實(shí)測值一致，加密間隔棒和間隔棒分散方式1不能有效防舞，間隔棒分散方式2一定程度上會(huì)有效提高舞動(dòng)臨界風(fēng)速，間隔棒鉸接連接可以提高舞動(dòng)臨界風(fēng)速，達(dá)到一定防舞作用。

［關(guān)鍵詞］覆冰舞動(dòng)； 八分裂導(dǎo)線； 氣動(dòng)力參數(shù)； 舞動(dòng)模型； 防舞措施

中圖分類號(hào)：TU317.2， TM751文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)22-0113-04

Galloping simulation and anti-galloping analyses of 8-bundle conductors at prototype transmission line comprehensive test site

Li Qing1， Li Mengli1， Yang Xiaohui1， Huang Jue2， Yan Zhitao2,3， Zhao Shuang3

（1 State Grid Henan Electric Power Research Institute, Zhengzhou 450052, China;  2 School of Civil Engineering， Chongqing University， Chongqing 400044， China;3 Department  of Civil Engineering and Architecture, Chongqing University of Science & Technology， Chongqing 401331， China）

Abstract:Iced galloping is one of the important disasters of transmission line. It is very significant to study the transmission line galloping and perform effective anti-galloping measures. By using the geometric parameters and physical parameters of prototype transmission line and aerodynamic parameters of D-shaped iced 8-bundle conductors at prototype transmission line comprehensive test site, a 3-bundle conductors model based on six degrees of freedom of nodes and considering bending stiffness and coupling deformation of axial and torsion was established. The effects of dense spacer bar, dispersed spacer bar and articulated spacer bar on line galloping were studied. The results show that the dynamic characteristics of the model are consistent with the measured values. The dense spacer bar and dispersion mode 1 of spacer bar can not effectively prevent the galloping. The dispersion mode 2 of spacer bar can effectively improve the critical galloping wind speed to a certain extent. The articulated spacer bar can improve the critical galloping wind speed and achieve a certain anti-galloping effect.

Keywords:iced galloping; 8-bundle conductors; aerodynamic parameter; galloping model; anti-galloping measure

作者簡介：李清，碩士，教授級(jí)高級(jí)工程師，Email: liqing@ ha.sgcc.com.cn。