电力光纤通信环网的可靠路由与可靠性测评  

Reliable routing and reliablity evaluation of power optical communication ring networks

作　　者：姚文杰 施加轮 陈新星 陈思颖 陈爽 邓舒 YAO Wenjie;SHI Jialun;CHEN Xinxing;CHEN Siying;CHEN Shuang;DENG Shu(State Grid Fujian Electric Power Co.Ltd.,Fuzhou 350003,China;Fujian Yongfu Power Engineering Co.Ltd.,Fuzhou 350108,China)

机构地区：[1]国网福建省电力有限公司,福建福州350003 [2]福建永福电力设计股份有限公司,福建福州350108

出　　处：《南京邮电大学学报（自然科学版）》2021年第3期23-29,共7页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国网福建省电力有限公司财务专项资助项目。

摘　　要：依据电力光纤通信网的高可靠性要求,提出了一种可靠路由及可靠性测评方法。首先,提出了基于割集进行可靠路由的整数线性规划优化算法,它保证环网在任一光缆中断时仍能正常通信,并最小化所需链路资源。其次,基于环网的可靠路由结果,采用多部件等效法计算环网链接的可靠性参数,建立链接子系统、节点子系统和环网系统的可靠性模型,提出了计算环网可用度的可靠性框图法。最后,以中国某市的电力光纤通信网络为例,用数值结果说明:可靠路由能获得更高的可用度,与马尔可夫过程法相比,所提可靠性框图法的计算精度更高。Considering the high reliability requirement of power optical fiber communication networks,a reliable routing method and a reliability evaluation method are proposed for power optical communication ring networks.Firstly,an integer linear programming(ILP)algorithm with cut⁃sets is presented for reliable routing of a ring,ensuring that the ring can normally work in any single cable failure.Then,based on the reliable routing results,a multi⁃component equivalent method is proposed to calculate the reliability parameters of each ring link that goes through multi⁃cables and multi⁃nodes.The reliability models for the link subsystem,the node subsystem and the ring network system are established,and the reliability block diagram method for calculating the availability of a ring network is proposed.Finally,a power optical fiber communication network in a city of China is taken as an example.Numerical results illustrate that reliable routing can improve the reliability of the network.Compared with the Markov chain method,the reliability block diagram method has better calculation accuracy.

关 键 词：可靠性 路由 光纤通信环网 网络路由 可修系统 

分 类 号：TN915[电子电信—通信与信息系统]