某电站500kV线路开关同期合闸失败原因分析及预防  

Cause Analysis and Prevention of Synchronous Closing Failure of 500 kV Line Switch in a Power Plant

作　　者：李佳栋 王文超 罗浩 刘敏琦 赖超 谢洪鑫 LI Jia-dong;WANG Wen-chao;LUO Hao;LIU Min-qi;LAI Chao;XIE Hong-xin(Yalong River Hydropower Development Company.Ltd.,Chengdu 610051,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：《云南水力发电》2022年第4期228-230,共3页Yunnan Water Power

摘　　要：输电线路作为发电厂电能送出的通道,其能否正常运行关系着电能能否正常输送和电站运行的可靠性。为更好的解决输电线路同期合闸失败问题,就某大型水电站线路同期合闸失败事件进行了分析,借助电站故障录波系统及简化系统潮流计算,最终推导出线路同期合闸相角与同期点处有功功率的关系,为今后类似事件处置提供一种简单明了的解决方案。As a channel for power transmission from power plant,the normal operation of power transmission lines is related to the normal transmission of power and the reliability of power plant operation.In order to solve the problem of synchronous closing failure of transmission line better,this paper analyses the synchronous closing failure of a large hydropower station line.With the help of power plant fault recording system and simplified system power flow calculation,the relationship between line closing phase angle at the same time and active power at the same time point is finally derived,which provides a simple and clear solution for future similar event disposal.

关 键 词：同期合闸 线路开关 功角 500kV 合闸失败 

分 类 号：TV734.3[水利工程—水利水电工程] TV737