随机风场中覆冰四分裂导线防舞研究

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (7) : 52-58.

论文

随机风场中覆冰四分裂导线防舞研究

严波1; 胡景1; 周松2; 张宏雁3

作者信息 +

Study on Anti-Galloping of Iced Quad-bundled Conductors in Stochastic Wind Field

Yan Bo1; Hu Jin1; Zhou Song2; Zhang Hong-yan 3

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文章历史 +

摘要

针对提出的一种适用于四分裂导线的防舞装置，采用数值模拟方法研究其防舞效果。给出新月型覆冰四分裂导线空气动力系数随攻角变化的风洞试验结果，为数值模拟研究提供基本参数。采用数值方法模拟沿线路变化的多点互相关风速时程样本，进而确定作用于覆冰导线上的空气动力载荷。数值模拟研究特征段线路安装防舞装置前后的运动过程，结果表明，该防舞装置可大大降低导线的运动幅值，对舞动具有有效的防止作用。

Abstract

A new anti-galloping device suitable for quad-bundled conductor is proposed, and its efficiency of the anti-galloping is numerically studied. The aerodynamic coefficients of the quad-bundled conductor covered with typical ice with attack angle determined by wind tunnel test are given out to provide the parameters for numerical simulation. Spatial stochastic wind fields, based which the aerodynamic loads on iced conductors are determined, are numerically simulated. The dynamic processes of a typical transmission line without and with anti-galloping device are numerically simulated. It is shown that the amplitude of the conductor in the typical line section is greatly decreased after the installation of the anti-galloping devices.

导出引用

严波;胡景;周松;张宏雁. 随机风场中覆冰四分裂导线防舞研究[J]. 振动与冲击, 2011, 30(7): 52-58

Yan Bo;Hu Jin;Zhou Song;Zhang Hong-yan . Study on Anti-Galloping of Iced Quad-bundled Conductors in Stochastic Wind Field[J]. Journal of Vibration and Shock, 2011, 30(7): 52-58