高压直流工程交流刀闸操作与换相失败的影响分析  

Analysis on the Influence of AC Breaker Operation and Commutation Failure in HVDC Project

作　　者：王晨涛 陈蔚东 陈浩 梁秉岗 Wang Chen-tao;Chen Wei-dong;Chen Hao;Liang bing-gang

机构地区：[1]南方电网超高压输电公司广州局,广东广州510663

出　　处：《电力系统装备》2022年第9期24-26,共3页Electric Power System Equipment

摘　　要：文章介绍了禄高肇直流工程发生的一起合刀闸引发换相失败的事件。以事件发生现象为依据,结合故障录波和控制保护逻辑对事件进行分析。指出换相失败原因为合刀闸产生高频电压分量导致阀组件RPU保护动作,进而导致换相失败。针对上述问题提出了运维意见。This paper introduces an incident in Lu-Gao-Zhao DC Project that caused a commutation failure due to switch-on.Based on the occurrence of the event,combined with fault recording and control and protection logic,the event is analyzed.It is pointed out that the reason for the commutation failure is that the high-frequency voltage component generated by the closing switch causes the valve assembly RPU protection action,which leads to the commutation failure.In response to the above problems,O&M opinions were put forward.

关 键 词：换相失败 RPU保护 高压直流 

分 类 号：TM771[电气工程—电力系统及自动化]