内蒙古电力技术2025，Vol.43Issue(2)：45-53,9.DOI:10.19929/j.cnki.nmgdljs.2025.0021
风电场覆冰线路气动特性及稳定性分析
Analysis on Aerodynamic Characteristics and Stability of Ice-Covered Lines in Wind Farm
摘要
Abstract
In response to the complex climate environment of wind farms,and the problems of ice cover and strong wind,which has obvious influence on the stability of lines,resulting in frequent line accidents,it is necessary to study the aerodynamic characteristics of lines under different ice conditions.In this paper,computational fluid dynamics software is used to simulate and calculate the aerodynamic parameters of fan-shaped,D-shaped and oval-shaped ice covered lines.Lift coefficient,drag coefficient and moment coefficient of different ice shapes under different ice thickness,different wind speeds and different wind attack angles are extracted,and the aerodynamic characteristics and stability of ice covered wires under different ice covered conditions are analyzed.The results show that the ice thickness has different effects on the aerodynamic coefficient of different ice shaped wires.The aerodynamic coefficient of oval-shaped ice-covered wires is less affected by the ice thickness,while fan shaped ice and D-shaped ice will cause varying degrees of abrupt changes in aerodynamic coefficient due to changes in ice thickness.The variation of wind speed has a great influence on the lift coefficient.With the increase of ice thickness,all kinds of ice-shaped wires tend to be unstable.When the wind speed is close to 10 m/s,the stability of the ice-covered wire is worse,and it is easy to gallop.The three types of ice cover shapes have significant differences in the flutter stability,with the D-shaped ice having the highest unstable wind attack angle region.关键词
风电场/气动系数/覆冰厚度/风速/舞动稳定性Key words
wind farm/aerodynamic coefficient/ice thickness/wind speed/galloping characteristic分类
信息技术与安全科学引用本文复制引用
王帅,朱永灿,刘宇鹏,张怡然..风电场覆冰线路气动特性及稳定性分析[J].内蒙古电力技术,2025,43(2):45-53,9.基金项目
陕西省创新人才推进计划——青年科技新星项目"基于故障预测与健康管理的电力设备智能运维技术研究"(2022KJXX-41) （2022KJXX-41）
