微地形对输电线路舞动的影响  

Effect of Micro-Terrain on Transmission Line Galloping

作　　者：景乾明[1] 胡春梅[2] 胡基才[3] 张承学[3] 

机构地区：[1]甘肃省电力公司,兰州市730050 [2]天水超高压输变电公司,甘肃省天水市741000 [3]武汉大学,武汉市430072

出　　处：《电力建设》2012年第6期23-26,共4页Electric Power Construction

摘　　要：分析了微地形对输电线路舞动的影响,建立了输电导线动力学模型及相应微地形下的流场模型。对存在微地形影响的某实际输电线路进行了动力学仿真分析,仿真结果与实际观察一致。对比分析了有、无微地形影响的仿真结果,发现微地形对于输电线路舞动的振型、振幅等特征具有显著影响。A flow field model and a dynamic model of transmission line are introduced based on the analysis of micro- terrain effect on transmission line galloping. The dynamic simulation analysis was carried out for a transmission line with the consideration of micro-terrain influence, of which result was consistent with the practical observation. The results show that micro-terrain has significant effect on the transmission lines galloping characteristics of vibration mode and amplitude, with the comparative analysis of the simulation results with and without micro-terrain effect.

关 键 词：微地形 舞动 输电线路 动力学仿真 

分 类 号：TM75[电气工程—电力系统及自动化]