基于改进Lee算法的电网潮流图自动绘图系统

Flow diagram generating system for power network based on improved Lee's algorithm

针对调度员工作站大规模电网潮流图智能生成时间长、效率低的问题,提出了一种基于改进Lee算法的电网潮流图自动绘图系统。首先,该系统从能源管理系统(EMS)中获取电网通用信息模型(CIM)和E文件数据建立系统型据库;然后,因式分解网格并拟合节点实际经纬度,实现厂站节点自动布局;其次,引入线探索法对线路初步布线,再采用Lee算法对无法确定的线路进行布线,实现自动布线;最后,根据网格通道布线情况调整线路位置和所占面积,避免线路不必要交叉及线距过近。绘图成果通过SVG矢量图形展示,针对某省级电网模型进行测试,并在13 s内完成绘图,与人工绘图相比,大幅减少了绘图时间。

In order to solve the problem of long intelligent generation time and low efficiency of large scale power flow diagram for dispatching staff, a new automatic drawing system of power flow diagram based on improved Lee＇s algorithm was proposed. Above all, the database of the system was established by the Common Information Model （CIM） and E file from Energy Management System （EMS）. And then, the grid was factorized and the actual latitudes and longitudes of nodes were fitted to realize automatic station node layout. Secondly, the line search algorithm was used to achieve the initial automatic routing, and then Lee＇s algorithm was used to automatically route the uncertain line. At last, the positions and areas of the grid lines were adjusted according to the situation of the grid lines, avoiding unnecessary crossing and short distance between lines. The drawing system was tested by a provincial power grid model, the results were displayed in Scalable Vector Graphics （SVG） vectorgrams and the drawing was completed in 13 seconds. Compared with the manual drawing, it greatly reduces the time consumption, so that the work efficiency is improved.