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.
出处
《电力系统及其自动化学报》
CSCD
北大核心
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)
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
wide-area protection system （WAPS）
communication network
reliability
SDH ring-structure network
Markov state-space method
