一起因500kV线路传输功率过大而导致线路同频并网失败案例分析  

Case Analysis of Same-frequency Paralleling Failure Caused by Excessive Transmission Power of 500kV Line

作　　者：罗义军 李飞 李超 LUO Yijun;LI Fei;LI Chao(Yalong River Hydropower Development Company Ltd.,Chengdu 610051,Sichuan,China)

机构地区：[1]雅砻江流域水电开发有限公司,四川成都610051

出　　处：《四川电力技术》2022年第4期91-94,共4页Sichuan Electric Power Technology

摘　　要：文中通过分析某大型水电站在单条500 kV送出线路带大功率情况下,另一条线路同频并网失败的案例。简要地分析了影响同频并网的因素以及正在运行线路传输功率与同频合闸相角差之间关系,进而提出解决大功率同频并网失败的措施。In the case of a single 500 kV transmission line with high power,the same-frequency paralleling failure of another line is analyzed.The factors affecting the same-frequency paralleling are briefly analyzed as well as the relationship between the transmission power of the running line and the phase-angle difference in the same-frequency switching,and then the measures to solve the same-frequency paralleling failure with high power are put forward.

关 键 词：同频并网 线路传输功率 相角差 

分 类 号：TM76[电气工程—电力系统及自动化]