提出了基于电力调度自动化系统实时数据库和关系数据库的电网事件捕捉方案。该方案在电网事件模型的基础上，对电网运行中事故异常等事件进行快速捕捉和准确分析，充分结合了实时数据库中存储的实时数据，提高了结果分析的准确性。以电网事故分闸为例，详细分析了基于事件驱动的电网事件快速捕捉过程。所提出的方案已成功应用于苏州智能电网调度技术支持系统。现场试验和测试结果表明，电网事件快速捕捉系统能显著提高调控员的监控效率，为电网安全稳定运行提供了进一步的保障，所实现的各项功能运行稳定，能够满足大型地区电网调度监控的实际应用需求。%This paper proposes a system to detect power system events based on relational database in power dispatching automation system and real-time database. With the developed models, the system sharply detects and analyzes abnormal grid events, such as switch trip and shock load. The real-time data is taken into consideration while doing analysis, which makes results more accurate. Taking the tripping of circuit breaker as an example, the process of fast detection of the power grid events is analyzed in detail. The proposed system has been successfully applied in the support system of smart dispatch for power systems in Suzhou. Test results show that the proposed system is able to reduce the working load of operators and can therefore provide a comprehensive protection for the secure operation of power systems. Operation records also show that the developed functions of the system have been running smoothly and can meet the requirements of power system automation of large-scale regional power systems.
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