基于虚拟局域网的智能变电站通信网络实时性仿真  

Simulation on real-time communication network in smart substation based on virtual local area network

作　　者：方子璐 杨俊杰 刘娟 Fang Zilu;Yang Junjie;Liu Juan(College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, Chin)

机构地区：[1]上海电力学院电子与信息工程学院,上海200090

出　　处：《电测与仪表》2017年第24期62-67,93,共7页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(61202369);上海市自然科学基金自主项目(14ZR1417400);上海市科技创新行动计划地方院校能力建设项目(13160500900);上海市教育委员会科研创新项(12ZZ176;13YZ102)

摘　　要：利用动态建模技术对IEC 61850-5中D2-1型变电站层次化建模。应用准确的数学模型对变电站内智能电子设备间传输的综合数据流进行全面时域建模。在基于端口的虚拟局域网(Virtual Local Area Network,VLAN)划分基础上,运用优先级标签技术划分站内数据流传输优先级,分别对星型,环形拓扑结构变电站自动系统进行有无VLAN的跨间隔,跨层研究。OPNET仿真结果表明,采用星型,环形组网与VLAN技术,可以有效改善变电站通信网络实时性,较好地抑制广播信息泛滥问题。The OPNET Modeler is used for hierarchical model of the D2-1 type substation specified by IEC 61850-5 standard. An accurate mathematical model is applied for modeling of the typical data flow which is transmitted be- tween smart electronic devices in the smart substation. Based on virtual local area network （VLAN） port division and priority tag technology, comparative study on star and ring topology network to judge whether it has VLAN or not. The cross bay division and cross layer division are carried out. The simulation results indicate that the substation communi- cation network, which adopts star and ring topology, VLAN can improve the real-time characteristic of substation com- munication network and suppress the spread of broadcast information.

关 键 词：智能变电站 虚拟局域网 实时性 IEC 61850 数据流建模 OPNET MODELER 

分 类 号：TM63[电气工程—电力系统及自动化]