110kV变电站现有直流系统典型设计的分析和改进建议

摘要

Ensuring the continuous and reliable running of charging module and the battery is an important link of safe and stable operation of the substation.The typical design of DC system connection mode of 110 kV substation is analyzed.A recent whole system power loss event caused by main transformer power supply loss is discussed deeply.The weak links of existing typical design of the dc system in practical application,the limitation conventional monitoring method for battery and related suggestions for improvement are proposed.%确保变电站直流系统充电模块和蓄电池组持续可靠输出是变电站安全稳定运行的一个重要环节，文章对110kV变电站直流系统接线方式典型设计进行了分析，并结合近期的一起主变压器失电后引起全站直流系统失电的故障展开深入论证，提出了直流系统典型设计在变电站实际应用中存在的薄弱环节、蓄电池常规监测手段的局限性以及相关改进建议。