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为了辅助智能变电站配置描述(SCD)虚端子的快速设计,研究了一种SCD中设备虚端子图形化生成系统。给出了该系统的技术思路,阐述了手工快速关联、基于已有模板辅助查找与定位候选输出虚端子、复制间隔或设备的虚连接到相似目标设备等关键技术。运用图形化技术,分区分栏显示IED的已关联虚连接、输出虚端子及其发送源、待关联的输入虚端子,快速定位发送设备的输出虚端子,采用图形化拖放进行手工关联。针对某接收设备某输入虚端子,以已有SCD中相关设备的虚连接为模版,对虚端子描述与关键词匹配,辅助快速找到相近的各候选虚端子,自动生成目标设备的虚连接。采用Qt C++实现了该系统,它已成功运用于实际变电站设计,取得良好的效果,大大提高了智能变电站虚端子的设计效率和准确性。
In order to assist in the rapid design of Smart Substation Configuration Description (SCD) virtual terminal, a device virtual terminal graphical generation system in SCD is studied. The technical ideas of the system are given, and the key technologies such as manual quick association, assistant search and location of candidate output virtual terminals based on existing templates, duplication interval or device virtual connection to similar target devices are described. Using the graphical technology, the partitioned columns display the associated virtual links of the IED, the output virtual terminals and their transmission sources, the input virtual terminals to be associated, and the output virtual terminals of the sending device. The graphical terminals are manually associated with the drag and drop. For an input virtual terminal of a receiving device, the virtual terminal of the related device in the existing SCD is used as a template to match the description of the virtual terminal with the keyword, and the assistant can quickly find the similar candidate virtual terminals and automatically generate the virtual connection of the target device. The system is realized by using Qt C ++. It has been successfully applied to the actual substation design and achieved good results, greatly improving the design efficiency and accuracy of the virtual terminal in smart substation.