500kV架空地线不同导线排列方式和损耗  

Conductor Configuration and Electric Loss of 500kV Overhead Ground Wire

作　　者：胡科 陈国初[1] 

机构地区：[1]上海电机学院电气学院,上海201306

出　　处：《上海电机学院学报》2018年第1期33-38,共6页Journal of Shanghai Dianji University

基　　金：上海市科学技术委员会科研项目资助(17DZ1201200)

摘　　要：为研究500kV架空地线能量损耗问题,以某500kV紧凑型同塔双回输电线路为研究对象,利用ATP-EMTP电磁暂态软件建立计算模型,对3种不同导线排列方式下的感应电压、感应环流以及地线电能损耗进行计算。结果表明,无论在系统双回运行还是Ⅰ回运行、Ⅱ回停运方式下,导线水平排列的感应电流、感应电压和地线损耗均为3种方式中最小。该结论可为架空输电线路设计提供理论参考。To study the ground wire loss of 500 kV transmission line, taken a 500 kV compact double-circuit transmission line on the same tower as an example,a simulation model was estab-lished by electromagnetic transient program（ ATP-EMTP） , which calculated the amplitude of induc-ted voltage and current, the electric loss of overhead ground wire, and the amplitude of overvoltage on three different conductor configuration. The results shows that no matter when the system runs on double-circuit or one back run two back down mode, the amplitudes of induced voltage and cur-rent, and the electric loss of overhead ground wire of horizontal arrangement get the minimums among the three ways. The result can provide theoretical reference for the designing of circuit transmission lines.

关 键 词：地线 导线排列方式 感应电压 感应环流 能量损耗 

分 类 号：TM726.3[电气工程—电力系统及自动化]