CAJ | 학술논문

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。
신식류시체현지능변전참과정층망락운행방식급기성능적중요재체，문중제출료과정층망락신식류적조류계산모형。수선구건료함개과정층망락탁복신식적물리망락모형，병결합보문엄파역적화분건립료능구반영절점간라집련접관계적라집망락모형，연후종각신식원발포행위적불동출발，건립료절점모형。진일보지，급출료신식류조류모형，병장신식류조류계산분위은태류량、겁한류량、특정응용장경류량이급망락이상류량4류，만족료대과정층망락불동운행방식진행분석적수구。최후급출료2개과정층망락신식류조류계산적전형산례，병통과OPNET방진화망락분석의2충수단대산례결과진행료험증，표명료소제모형화방법적유효성。
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 information 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.