Abstract: The visualization of power data can realize the online monitoring of different power features including various attributes and operating status, etc., which can be graphically and visually presented to provide a powerful guarantee for the timely and effective monitoring and analysis of equipment operation status. Based on the urban power supply data, a method for the visual analysis of power supply situation in the city is proposed. Firstly, the overall power supply situation is visualized based on the substation data in the power supply system. Then, the layout is optimized based on multi-criteria constraints and visually coded according to the power supply line data. Finally, according to the relation of lines, the visualized coding is conducted on the users of different lines. A visual analysis system has also been designed to facilitate the user’s exploration and analysis of the power supply situation in a certain area. Case studies based on Shanghai City Power Supply data show that the method can effectively reflect the overall power supply situation and specific power supply details in a certain area.

Key words: urban power data visualization, power supply situation, line layout optimization, visual coding