基于以太网103规约发电机主保护装置的监控系统实现

Realization of Monitoring System of Generator Main Protection Device Based on Ethernet 103 Protocol

发电机原有的主保护装置(型号YH-B5081D)通过工业以太网连接上位机,采用IEC 60870-5-103规约,结合UDP报文和TCP报文建立连接与通信,对发电机的运行和控制实施计算机监控。正常状态下,监控系统只需定时向保护装置发送UDP广播报文;当保护装置发生事件或有数据变化时,保护装置启动数据传输,通过TCP报文及时将信息通知上位机的监控系统,完成对小型电站的技术升级,实现“无人值班,少人值守”工作目标。

The original main protection device of the generator(model YH-B5081D)was connected to the host computer through industrial Ethernet adopting the IEC 60870-5-103 protocol.Combining UDP message and TCP message to establish connection and communication,the operation and control of generator were monitored by computer.Under normal conditions,the monitoring system only needed to periodically send UDP broadcast messages to the protection device.When an event or data change occurred in the protection device,the protection device initiated data transmission,and informed the monitoring system of the host computer through TCP messages in a timely manner to complete the technical upgrade of the small power station and realize the work of"unattended,less on duty"aims.