66kV覆冰导线的舞动仿真分析  

Simulation Analysis of 66 kV Cladding Ice Wire Dancing

作　　者：郭仁宁[1] 任常在[1] 王震[1] 赵龙广 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000 [2]内蒙古京海煤矸石发电有限责任公司,内蒙古乌海016000

出　　处：《计算机仿真》2012年第8期313-317,共5页Computer Simulation

摘　　要：针对偏心覆冰导线在风的激励下极易诱发舞动对输电线路造成损坏,对整个供电系统的安全运行造成严重危害的问题,采用Fluent软件中的SSTk-ω模型对覆冰导线的空气动力参数进行了仿真,得到了各攻角下不同冰厚的升力、阻力系数以及邓哈托系数,并依据此结果判定覆冰导线是否发生舞动。仿真结果表明:在风速相同的情况下,覆冰厚度大的易发生驰振,在冰厚度相同的情况下,风速变大气动力系数变得平稳,不易发生驰振;6mm以下的覆冰导线不会发生驰振。仿真验证了覆冰导线模型的有效性,其数据结果对覆冰导线防舞工具的设计和安装都具有重要的参考价值。Aiming at the problem that asymmetric icing conductors are prone to gallop under the action of wind which may cause cascading of the transmission line and disruption of the power supply, in order to decide the aerody- namic parameters of the icing conductor effectively, the aerodynamic parameters of the icing conductor were simulated with SSTk - comodel of Fluent software, to get the lift, drag coefficient, as well as Deng Hartog coefficient in different ice thick and attack angles. Whether the icing conductor is stable or not is according to the result. The simulation re- suits show that under the same wind speed, the wire of thick ice throws about easier. In the same case of the ice thickness, the stronger the wind speed, the more stable the aerodynamic coefficient and the less possibility of thro- wing about. And the wire of thin ice won＇t throw about. Experiment result proves the availability and accuracy of the icing conductor model. The simulation results are useful for design and install of throwing about preventing tools of ic- ing conductor .

关 键 词：覆冰导线 仿真 邓哈托系数 舞动 设计 

分 类 号：TM743[电气工程—电力系统及自动化]