提高数字化变电站关键报文传输可靠性方法研究  

Frame-based transmission reliability analysis of the digital substation key messages

作　　者：胡春潮[1] 蔡泽祥[1] 竹之涵 

机构地区：[1]华南理工大学电力学院,广东广州510640 [2]广州思唯奇计算机科技有限公司,广东广州510665

出　　处：《电力系统保护与控制》2011年第9期91-96,共6页Power System Protection and Control

基　　金：广东省科技计划项目(2010B010900028)

摘　　要：数字化变电站关键报文传输要求处理过程简单、时延小和具备一定的差错控制能力。以报文载体数据帧为研究对象,分析了关键报文的传输可靠性要求及其帧结构。依据报文帧的具体字段,分别分析了通过基于地址字段优化报文寻址、基于优先级字段设置减少时延、基于类型字段配置增加报文识别处理速度及基于内容字段的组成技术增加系统效率来保证报文传输可靠性的技术措施,展现了提高报文传输可靠性的途径与方法。结合基于以太网技术搭建的光纤过程层通信网络方案,说明了目前关键报文的传输可靠性满足数字化变电站的技术要求,可以满足实时性要求较高的技术应用。To ensure the message transmission reliability,the transmission of the digital substations critical messages should have a simple process,a short delay and some error control measures.Taking the message carrier data frame as research object, this paper first clarifies the requirements of the key message transmission reliability,then studies the structure of the frame.Based on the content of the frame,the paper analyzes the measures,including using the address field to optimize addressing,using priority field to reduce the delay,using type field configuration to increase recognition processing speed and using the technology of formatting content field to increase the efficiency of the system,to ensure the message transmission reliability, and presents the approach to improving the message transmission reliability.Through an optic process communication network solution based on the Ethernet technology,it illustrates the current critical message transmission reliability meets the technical requirements of the digital substation and even meets the more severe real-time request of the technology application.

关 键 词：数字化变电站 GOOSE报文 SV报文 数据帧 传输可靠性 

分 类 号：TM76[电气工程—电力系统及自动化] TM63