基于“车-路-站-网”信息耦合的电动汽车有序充电策略  

Ordered Charging Strategy for Electric Vehicles Based on the Information Coupling of Vehicle-Road-Station-Grid

作　　者：刘丽军[1] 陈昌 胡鑫 林钰芳 LIU Lijun;CHEN Chang;HU Xin;LIN Yufang(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学电气工程与自动化学院,福州350108

出　　处：《高电压技术》2024年第2期693-703,I0017,I0018,共13页High Voltage Engineering

基　　金：国家自然科学基金(52107080);福建省财政厅财政资助专项(83022005)。

摘　　要：为了消解规模化电动汽车(electrical vehicle,EV)无序充电对交通路网、充电站和配电网运行稳定性带来的负面影响,提出一种基于“车-路-站-网”信息耦合的电动汽车有序充电策略。首先,构建“车-路-站-网”信息耦合模型和动态Floyd最短时间路径搜索模型,为EV用户搜寻最短耗时路径。其次,基于“车-路-站-网”实时状态预测EV用户选择不同路径前往各充电站快充产生的充电决策因素,通过层次分析法和改进CRITIC法综合EV用户充电决策因素的主客观权重,利用Topsis方法决策EV用户的最优充电路径。最后,提出EV用户慢充优化策略,对返程EV用户的慢充负荷进行优化,结合EV慢充和快充负荷,进一步实现配电网负荷的削峰填谷。仿真结果表明,所提出的EV有序充电策略能够同时提升“车-路-站-网”多方运行水平。In order to eliminate the negative impacts of disorderly charging of large-scale electric vehicles(EVs)on the operational stability of transportation road networks,charging stations,and distribution networks,we propose an orderly charging strategy for EVs based on“vehicle-road-station-network”(VRSN)information coupling system.Firstly,a VRSN system and a dynamic floyd shortest time path search model are constructed to find the shortest time-consuming path for EV users.Secondly,based on the real-time state of VRSN,we predict the charging decision factors for EV users to choose different paths to each charging station for fast charging,synthesize the subjective and objective weights of the charging decision factors for EV users through hierarchical analysis and the improved CRITIC method,and decide the optimal charging paths for EV users by using Topsis method.Finally,the slow charging optimization strategy for EV users is pro-posed to optimize the slow charging load of EV users after their return trips,and the EV slow charging and fast charging loads are combined to further realize peak shaving and valley filling of the distribution network load.Simulation results show that the proposed EV orderly charging strategy can simultaneously improve the operation level of VRSN system.

关 键 词：电动汽车 交通路网 动态Floyd搜索 有序充电策略 Topsis决策 

分 类 号：TM910.6[电气工程—电力电子与电力传动] U491.8[交通运输工程—交通运输规划与管理]