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对国电南自以太网103协议及其在水电厂自动化系统的通信进行了介绍。为了提高水电厂自动化系统与多台保护等智能装置之间通信的快速性,平衡传输是最佳的选择。在以太网的链路中,103协议采用UDP报文与TCP报文相结合。利用UDP短报文进行链路监测和链路启动,链路正常建立后,利用TCP报文进行正常信息传输。当保护智能装置等发生事件或有数据变化时,其自动启动一次TCP报文传输过程,及时将信息通知水电厂自动化系统,成功地实现了正常连接状态下的平衡传输,保证了信息传输的及时性、完整性与正确性。
Guodian Nan Ethernet 103 protocol and its communication in hydropower plant automation were introduced. In order to improve the automation of hydropower plant automation systems and multiple protection devices such as the rapid communication between the balanced transmission is the best choice. In the Ethernet link, 103 protocol uses UDP packets combined with TCP packets. UDP short packets are used for link monitoring and link startup. After the link is established normally, TCP packets are used for normal message transmission. When the protection of smart devices and other events or data changes, it automatically start a TCP packet transmission process, timely information to the hydropower plant automation system, the successful realization of the normal connection state of the balanced transmission, to ensure the timely transmission of information Sex, completeness and correctness.