基于GIS的重庆市主城区充电站布局评估与优化

Evaluation and optimization of charging station layout in the main city area of Chongqing based on GIS

充电站的布局和建设直接影响新能源汽车的普及和发展,是城市可持续发展和智慧城市建设的重要组成部分。本文引入核密度估计法和两步移动搜索法对重庆市主城区中公用充电站的空间布局进行评估,并根据评估结果采用最小阻抗模型进行充电站优化配置分析。研究结果表明,重庆主城区充电站空间分布存在明显的单中心聚集特征,以渝中区为核心的区域中,充电站的密度较高,充电资源丰富;重庆市充电站可达性呈现中心区域高、外环区域低、局部区域分布不均的特点;部分地区出现充电站需求与供给的错位,主城区内不同区域充电站可达性差异较大。本文研究成果可以为进一步优化重庆市充电站配置提供参考。

The layout and construction of charging stations have a direct impact on the popularization and development of new energy vehicles,and are an important part of city sustainable development and smart city construction.In this paper,the kernel density estimation method and the two step floating catchment area method are introduced to evaluate the spatial layout of public charging stations in the main city area of Chongqing,and an charging station optimization configuration analysis is proposed based on the evaluation results using the minimum impedance model.The research results show that there is a clear single center aggregation feature in the spatial distribution of charging stations in the main city area of Chongqing,with a high density of charging stations in the core area of Yuzhong District and abundant charging resources.The accessibility of Chongqing charging stations presents a characteristic of high central area,low outer ring area,and uneven local accessibility distribution.In some areas,there is a mismatch between charging resources and supply,resulting in significant differences in accessibility in different regions.The results of this study can provide a reference for further optimizing the configuration of charging stations in Chongqing.