云端保电新模式下电网接线图增量自动成图算法  

Incremental Automatic Mapping Algorithm of Power Grid Wiring Diagram under the New Mode of Cloud Based Power Conservation

作　　者：张健 付慧敏 徐琼 冯苗苗 施铭 ZHANG Jian;FU Huimin;XU Qiong;FENG Miaomiao;SHI Ming(State Grid Shanghai Qingpu Electric Power Company,Shanghai 201799,China)

机构地区：[1]国网上海市电力公司青浦供电公司,上海201799

出　　处：《微型电脑应用》2024年第9期218-221,230,共5页Microcomputer Applications

摘　　要：电网接线图增量成图过程复杂,容易受到接线不对称性影响,使得电网增量接线距离较远,导致成图后电压态势达不到理想状态。为了解决该问题,在云端保电新模式下引入A^(*)算法,自动生成电网接线增量线路图。使用A^(*)算法计算线路交叉和拐点代价函数,规划单线路路径,处理T型接线,对重复线路进行偏移处理。计算接线图形极坐标,连接所有更新后的极坐标点,实现接线图形拼接。计算连接起点到终点位置代价函数,在云端保电新模式下布局三相四线。计算引力、斥力、重力,将发散节点收敛于图形重心,构建节点运动方程,组装三相对称图形和各相单相不对称部分,美化接线图,使得成图效果清晰美观。通过案例分析可知,该算法接线所经过节点少,且自动成图算法与理想成图后电压一致,新增线路位置电压达到250 V,说明使用该方法能够达到理想成图效果。The incremental mapping process of the power grid wiring diagram is complex and vulnerable to the influence of wiring asymmetry,which makes the incremental wiring distance of the power grid far away,leading to the unsatisfactory voltage situation after mapping.In order to solve this problem,A^(*)algorithm is introduced to automatically generate the incremental wiring diagrams of power grid connection under the new mode of cloud power protection.The A^(*)algorithm is used to calculate the cost function of line intersection and inflection point,plan the single line path,process the T-section line,and offset the repeated lines.The polar coordinates of the wiring diagram are calculated,all updated polar coordinate points are connected,and wiring diagram splicing is realized.The cost function of connecting the starting point to the end point is calculated,and lay out three-phase and four-wire under the new mode of cloud power protection.Gravitation,repulsion and gravity are calculated,when they converge divergent nodes to the center of gravity of the figure,node motion equations,assemble three-phase symmetric figures and single-phase asymmetric parts of each phase are built,the wiring diagram is beautified,and the drawing effect is clear and beautiful.Through case analysis,it can be seen that this algorithm has few nodes through which to connect,and the automatic mapping algorithm is consistent with the ideal voltage after mapping,and the new line position voltage reaches 250 V,which shows that this method can achieve the ideal mapping effect.

关 键 词：云端保电 电网接线图 增量 自动成图 A^(*)算法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]