继电保护及相关回路动态监控及故障诊断技术研究与应用

Research on the Dynamic Monitoring and Fault Diagnosis Technology for Relay Protection and Secondary Circuits

研究了继电保护及相关回路动态监控及故障诊断系统架构,提出了基于该架构的状态采集单元、站端动态监控技术、二次回路故障诊断技术以及过程层和间隔层设备改造。基于该架构的成套系统已经在安徽某变电站成功投入运行。基于该架构的成套系统在安徽某500 kV变电站成功投入运行。运行结果表明,系统稳定可靠,数据记录完整。记录的数据有助于现场设备运行工况的分析。

This paper studies the dynamic monitoring and fault diagnosis system for the relay protection and its secondary circuit and proposes the architecture of the system. And based on the architecture, the state acquisition unit, the station dynamic monitoring technology, the second circuit fault diagnosis technology and the modification of the process level and bay level equipment are proposed and clarified. A complete set of system based on the architecture has been successfully put into operation in a 500 kV power substation in Anhui pro- vince, and operation results show that the system is stable and reliable, and the data record is complete. The recorded data is helpful to the analysis of the operating conditions of the field equipment.