调度与变电站一体化系统链路状态监测与TCP通信方案  

A Scheme for Link Monitoring and TCP Communication in Dispatch and Substation Integrated System

作　　者：万书鹏[1] 雷宝龙[1] 翟明玉[1] 

机构地区：[1]国电南瑞科技股份有限公司,江苏省南京市211106

出　　处：《电力系统自动化》2014年第1期92-96,共5页Automation of Electric Power Systems

摘　　要：为满足调度与变电站一体化系统双网架构下的TCP通信,提出一种基于组播的链路状态监测与TCP通信方法。该方法包括组播报文监测、智能网卡选择、实时状态判断和未知节点过滤。组播报文监测通过接收对方发送的组播报文监测到对方的通信链路状态;智能网卡选择可以根据通信链路状态和网络流量等信息选择最优网络进行通信;实时状态判断确保在通信过程中网络发生故障后能够及时中断通信;未知节点过滤能够主动拒绝系统外的未知节点发起的通信请求,保证系统的安全稳定。链路状态监测与TCP通信方法能够实现在调度与变电站一体化系统双网架构下的高效、可靠和安全的TCP通信。A kind of link monitoring based on the multicast and TCP communication method is proposed to satisfy TCP communication under the architecture of dual network in the dispatch and substation integration system.This method includes monitoring by multicast, smart network interface card（NIC）selecting,judging on real-time status and filtering based on unknown nodes.The monitoring by multicast can mutually monitor the link status by receiving the opponent multicast packet.The smart NIC selection can communicate by selecting the optimal network according to each others link status and network traffic.The judging on real-time status ensures that communication can be promptly interrupted after a network failure occurs.The filtering based on unknown nodes can actively refuse the communication request of the unknown node initiated outside the system,and ensures the security and stability of an system.The method of link monitoring and TCP communication is able to achieve efficient,safe and reliable TCP communication under the architecture of dual network in dispatch and substation integration system.

关 键 词：智能变电站 调度自动化 变电站自动化 一体化 双网架构 链路状态监测 TCP通信 

分 类 号：TM73[电气工程—电力系统及自动化]