摘要
信息流是体现智能变电站过程层网络运行方式及其性能的重要载体,文中提出了过程层网络信息流的潮流计算模型。首先构建了涵盖过程层网络拓扑信息的物理网络模型,并结合报文广播域的划分建立了能够反映节点间逻辑连接关系的逻辑网络模型,然后从各信息源发包行为的不同出发,建立了节点模型。进一步地,给出了信息流潮流模型,并将信息流潮流计算分为稳态流量、极限流量、特定应用场景流量以及网络异常流量4类,满足了对过程层网络不同运行方式进行分析的需求。最后给出了2个过程层网络信息流潮流计算的典型算例,并通过OPNET仿真和网络分析仪2种手段对算例结果进行了验证,表明了所提模型和方法的有效性。
The information flow is an important carrier of the network performance of smart substation process bus network. This paper proposes an information flow calculation model for process bus network of smart substation. Firstly the physical network model including the topology information of the process bus network is constructed. We also propose a logical network model based on the switch broadcast domain to reflect the logical connection of the nodes. The node model is built according to the packets sending behavior of each infbrmation sources. Furthermore, we propose the information flow calculation model, which can be divided into steady-state calculation, ultimate load calculation, specific scenarios calculation, and network faults calculation to meet different requirements of the network performance evaluation. Finally, we provide two typical examples, and use the data provided by OPNET and network analyzer to verify the validity of the models and methods in this paper.
出处
《电网技术》
EI
CSCD
北大核心
2013年第9期2602-2607,共6页
Power System Technology
基金
广东省科技计划项目(2010B010900028)~~
关键词
智能变电站
过程层网络
信息流
潮流计算
运行方式
smart substation
process bus network
information flow
power flow calculation
operation mode
