典型广域保护通信网络的信息传输可靠性评估  

Information Transmission Reliability Assessment of Communication Network in Typical Wide Area Protection

作　　者：崇志强[1] 戴志辉[1] 焦彦军[1] 

机构地区：[1]华北电力大学电力工程系,保定071003

出　　处：《电力系统及其自动化学报》2014年第4期20-24,共5页Proceedings of the CSU-EPSA

基　　金：中央高校基本科研业务费支持项目(11MG38)

摘　　要：通信网络可靠性是影响广域保护能否实现其预定功能的决定性因素之一。根据电力系统广域保护通信系统主干网和区域网的结构特点,以SDH光网络信息传输原理为基础,以SDH自愈环网和SDH星型网为例,综合利用Markov状态空间法和网络法,通过定性分析和定量计算相结合,分析了二纤单向通道保护环网和星形网络的可靠性模型。算例表明模型反映了信息传输原理,能为电力系统广域保护通信系统的可靠性评估提供参考。The reliability of communication network is one of the decisive factors influencing the realization of the wide area protection system （WAPS）.According to the structural characteristics of backbone and regional communication networks in WAPS and transmission principle of synchronous digital hierarchy （SDH）optical network,the reliability models of SDH self-healing ring-structure and star-structure network are analyzed by taking into account both Markov state-space method and network method.The study case shows that the reliability model could reflect information transmission principle and provide reference for the reliability assessment of WAPS communication network.

关 键 词：广域保护系统 通信网络 可靠性 光同步数字传输网 马尔可夫状态空间法 

分 类 号：TM77[电气工程—电力系统及自动化]