同塔4回输电线路参数计算方法研究  

Parameters computational methods reseach of 220 kV quadruple-circuit transmission lines on a common tower

作　　者：余颖辉[1] 李建华[1] 杨增辉[1] 

机构地区：[1]华东电力试验研究院有限公司,上海200437

出　　处：《上海电力》2009年第2期99-102,共4页Shanghai Electric Power

摘　　要：同塔多回输电线路参数的不平衡会引起系统运行的不平衡、潜供电流以增大,文章结合上海电网实际特点,提出了220kV同塔4回线路的实施模式,并基于卡森模型,应用EMTP程序计算了同塔4回线路的理论计算参数。在此基础上,根据每回线的相位布置方式,计算了同塔4回线路的原始序参数,并采用一定的假设原则提出了适应于大规模电力系统安全分析的同塔4回线路简化序参数。The parameters unbalance of the multi-circuit transmission lines on a common tower will cause power system unbalance and big secondary ARC current. The implementation mode of 220 kV quadruple-circuits transmission lines on a common tower is studied and determined in accordance with the characteristics of Shanghai power grid. Theorectical parameters of the quadruple-circuits are computed via EMTP. The primary sequential parameters of the quadruple-circuits are computed corresponding to various phase arrangements of each circuit. By emplying reasonal assumptions, the simplified sequential parameters are derived for large-scale power system stability analysis.

关 键 词：同塔4回线路 实施模式 序参数 

分 类 号：TM751[电气工程—电力系统及自动化]