智能变电站无线拓扑的设计与研究

Design and research on wireless topology of smart substation

随着新一代保护装置的就地化安装,变电站有线通信存在线路布置复杂、网络升级困难等问题。为了将无线通信技术引入智能变电站二次设备之间的信息传输交换,研究了一种基于解析变电站配置文件(substation configuration description,SCD)建立信息流模型进而构建智能变电站无线组网拓扑的方法。分析智能变电站设备的连接拓扑模型,节点流模型,链路流模型,通过解析SCD配置文件对信息流模型进行计算分析;根据信息流模型构建智能变电站无线拓扑,从拓扑中得到所有设备的连接关系,无线接入设备与智能变电站设备(intelligent electronic device,IED)的连接及地址映射关系,配置无线接入设备的地址转发表;通过110 kV小型智能变电站为案例,对引入无线通信技术的可行性进行了验证。这种智能变电站无线架构的构造方法,对智能变电站的无线化具有一定的探索性参考意义。

With the local installation of new generation protection devices,some problems emerged for the wired communication in the substation,such as complicated line layout and difficult network upgrade.In order to introduce the wireless communication technology into the transmission and exchange of information between the secondary equipment in the substation,a method to construct the information flow model based on substation configuration description(SCD)analysis and to construct the wireless networking topology for the intelligent substation is studied.Firstly,the connection topology model,the node flow model and the link flow model for the smart substation equipment are analyzed,and the information flow model is calculated and analyzed by parsing the SCD configuration file.Then the wireless topology of smart substation is constructed according to the information flow model.The connection relationship of all devices,the connection and address mapping relationship between wireless access devices and IED devices are obtained from the topology.Again the address forwarding table of wireless access devices is configured.Finally,the feasibility of introducing wireless communication technology was verified by the case of 110 kV small intelligent substation.This method of constructing the wireless architecture has certain exploratory reference significance for the smart substation.