摘要
阀冷却系统作为换流站内核心设备,其安全稳定运行直接关系到直流系统的运行状况。以2011年8月30日胶东换流站阀外冷24 V信号电源丢失导致直流闭锁为例,深入分析银川东换流站外冷系统直流电源配置、电源切换逻辑等,发现隐患并提出改造方案,最后通过现场试验论证,杜绝此类隐患再次发生。
As the core equipment in the converter station, the valve cooling system＇s safe and stable operation is directly related to the operation status of the HVDC system. With the loss of the 24 V signal power of the valve cooling system in Jiaodong Converter Station leading to the HVDC block which happened on August 30, 2011 as a ease for analysis, this paper presents an in-depth analysis of the DC power supply configuration, power switching logic of the valve cooling system of Yinehuandong Converter Station in a bid to to find hidden troubles and put forward the retrofit scheme. The field tests conducted suggests that the scheme can prevent this kind of hidden problems from occurring again.
出处
《电网与清洁能源》
2013年第4期46-49,55,共5页
Power System and Clean Energy
