基于统一信息模型的时间同步在线监测技术

Time synchronization online monitoring technology based on a unified information mode

时间同步系统是电力系统的基础设施,是电力系统运行控制和故障分析的重要基础条件。目前,现场运行时间同步系统中,部分厂站不具备时间同步在线监测功能,部分厂站时间同步在线监测功能仅在站内实现,无法进行全网统一时间在线监测。为面向全网主子站时间同步监测需求,提出了主子站间及站内时间同步监测整体解决方案。设计了时间同步监控主子站间及变电站内系统架构,分析了涉及的关键技术,包括统一信息建模、时间同步监测系统应用功能及测试技术。目前,基于统一信息模型的时间同步在线监测系统已经在江苏电网稳定运行。

The substation time synchronization system is the infrastructure of a power system. It is an important basic condition for power system operation control and fault analysis. At present, in the time synchronization system running in the field, some of the slave stations do not have the time synchronization online monitoring function, and some of the time synchronization online monitoring is only implemented in the slave station, and so online monitoring of the entire network cannot be performed. In order to orient time synchronization monitoring of the whole network, an overall solution for time synchronization monitoring between the main station and the substation is proposed. The system architecture of time synchronization monitoring between the main substation and the substation is designed, and the key technologies involved are analyzed, including unified information modeling, time synchronization monitoring system application functions and testing techniques. At present, the time synchronization online monitoring system based on the unified information model has been running stably in the Jiangsu Power Grid.