矿区配电网自动化EPON通信的可靠性分析  

Reliability Analysis of EPON Communication for Distribution Automation in Mining Areas

作　　者：赵元苏 曹福凯 郭蕊[1] ZHAO Yuansu;CAO Fukai;GUO Rui(School of Information Technology,Beijing Polytechnic College,Beijing 100042,China;Jitang College,North China University of Science and Technology,Tangshan 063210,China)

机构地区：[1]北京工业职业技术学院信息工程学院,北京100042 [2]华北理工大学冀唐学院,河北唐山063210

出　　处：《金属矿山》2023年第12期189-195,共7页Metal Mine

基　　金：2020年北京工业职业技术学院科研课题(编号:BGY2020KY—18)。

摘　　要：矿区配电网自动化运行对矿山企业安全生产至关重要。针对现有的矿区配电网自动化通信网络在可靠性设计和网络系统容灾能力等方面的不足,研究了网络链路冗余度对矿区配电网自动化网络可靠性的影响,并构建了基于以太无源光网络(Ethernet Passive optical Network,EPON)的矿区配电网自动化网络可靠性模型。在此基础上,提出了基于树形、总线形和环形的矿区配电网自动化EPON网络冗余结构,并推导出相应的网络可靠性数学评估模型。基于MATLAB的算例计算结果表明:矿区配电网自动化中EPON通信网络的可靠性与灾害强度、网络覆盖半径及网络结构密切相关,灾害强度与网络覆盖半径越高,网络可靠性越低;采用冗余结构的EPON通信网络的可靠性优于无冗余网络,其中双总线形冗余结构的可靠性最高,双环形冗余结构的可靠性居中,而树形冗余结构的可靠性最低。研究成果可为矿区配电网自动化通信网络的可靠性评估提供理论依据。The automatic operation of distribution network in mining area is very important for the safety production of mining enterprises.Aiming at the shortcomings of the existing distribution network automation communication network in reliability design and disaster tolerance capability of the network system,the influence of network link redundancy on the reliability of distribution network automation network in the mining area is studied,and an ethernet passive optical network is constructed based on Ethernet passive optical network(EPON).On this basis,the redundant structure of EPON network based on tree,bus and ring is proposed,and the corresponding mathematical evaluation model of network reliability is derived.The simulation results based on MATLAB show that the reliability of EPON communication network in distribution network automation is closely related to disaster intensity,network coverage radius and network structure.The higher the disaster intensity and network coverage radius,the lower the network reliability.The reliability of EPON communication network with redundancy structure is better than that of non-redundancy network,in which the reliability of double-bus redundancy structure is the highest,the reliability of double-ring redundancy structure is the middle,and the reliability of tree redundancy structure is the lowest.The research results can provide theoretical basis for reliability evaluation of distribution network automation communication network in mining area.

关 键 词：矿区配电网 以太网无源光网络 配电网自动化 通信可靠性 

分 类 号：TD68[矿业工程—矿山机电]