Electrical grids are geographical and topological structures whose voltage states are challenging to represent accurately and efficiently for visual analysis. The current common practice is to use colored contour maps, yet these can misrepresent the data. We examine the suitability of four alternative visualization methods for depicting voltage data in a geographically dense distribution system -- Voronoi polygons, H3 tessellations, S2 tessellations, and a network-weighted contour map. We find that Voronoi tessellations and network-weighted contour maps more accurately represent the statistical distribution of the data than regular contour maps.

翻译：电网是具有地理与拓扑结构的复杂系统，其电压状态在可视化分析中难以实现精确高效的呈现。当前普遍采用彩色等高线图，但此类方法可能造成数据误读。本文针对地理分布密集的配电系统，系统评估了四种替代性电压数据可视化方案——Voronoi多边形、H3网格剖分、S2网格剖分及网络加权等高线图。研究表明，相较于常规等高线图，Voronoi剖分图与网络加权等高线图能更准确地反映数据的统计分布特征。