摘要
针对换流站阀组用"两电三充"低压直流电源系统结构存在的问题,通过对其可靠性、灵活性和实用性等方面进行具体分析,提出了一种基于"三电五充"系统结构的低压直流电源系统。应用结果表明:该系统结构有效解决了换流站直流保护系统多电源独立配置的需求问题,真正消除了低压直流电源故障导致直流误闭锁的重大隐患,建立了一套集中组屏、统一监控、灵活处置的应用案例,可为直流换流站阀组用低压直流电源系统设计提供参考。
Aiming at the problem existing in the structure of low-voltage DC power supply system with"two battery and three charger"for valve set of converter station,by analyzing the reliability,flexibility and practicability,the low-voltage DC power supply system based on the structure of"three battery and five charger"is proposed.The application results show that the"three battery and five charger"is effective to solve the requirements problems of the multiple and independent configuration power supplies,the hidden danger of the DC error locking due to the low-voltage DC power failure is really eliminated.The application case with centralized panel,unified monitoring,flexible disposal is built,which provide some reference for the low-voltage DC power supply system design of the valve set of the DC converter station.
作者
宋海龙
史磊
柴斌
赵晓健
SONG Hailong;SHI Lei;CHAI Bin;ZHAO Xiaojian(Maintenance Company of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan Ningxia 750011,China;State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan Ningxia 750001,China;Shandong Taikai Automation Co.,Ltd.,Taian Shandong 271000,China)
出处
《宁夏电力》
2021年第6期14-19,共6页
Ningxia Electric Power
关键词
两电三充
三电五充
低压直流电源
直流换流站
直流闭锁
two battery and three charger
three battery and five charger
low-voltage DC power
DC converter substation
DC locking
