省级电网智能变电站二次设备在线监视与故障诊断系统

为满足电网运行和智能调度对二次设备信息的需求，安徽省调试点建设了省级电网智能变电站二次设备在线监视与故障诊断系统，实现继电保护装置远程巡视与运维、状态监视与预警、缺陷故障诊断及动作行为分析。本文结合系统试点与应用实践，深入分析硬软件架构和功能模块的建设需求和实现思路，并针对系统在逐步推广过程中需要关注的技术问题提出展望。本系统的建设应用，为调度人员快速处理电网故障提供决策依据，对智能变电站二次设备故障消缺和状态检修工作开展提供有效的技术支撑。

Online Monitoring and Fault Diagnosis System for #br# Smart Substation Secondary Equipment in Provincial Power Grid

 To meet the demands of secondary equipment information for power grid operation and intelligent dispatching, the online monitoring and fault diagnosis system for smart substation secondary equipment is constructed in Anhui provincial power grid to realize the remote inspection and operation, state monitoring and warning, analysis of fault diagnosis and action behavior of relay protection devices. Combined with the practice and application of pilot system, this paper introduces the construction demand and realization of the hardware structure, software structure and functional module. And a look-ahead is presented for future technology development in promoting the online monitoring and fault diagnosis system. Through the construction and application of the system, it provides decision-making basis for dispatchers to deal with power grid faults quickly and effective technical support for the fault elimination and condition based maintenance of secondary equipment in intelligent substations.