The invention discloses an EV load prediction method based on dynamic weighting Dijkstra, and the method comprises the following steps: building a vehicle speed model of a vehicle running on a road with different vehicle numbers at the moment, and determining the proportion of vehicles selecting an overtaking action; generating travel behaviors of starting and ending point simulation users and path distribution in a network in real time; the charging stations in the network are initialized, so that the queuing waiting time of the electric vehicles tends to be the same; setting a delay change matrix to count traffic flow conditions with minutes as units; adding a new method for judging the weight of the travel path of the user, and replacing the original shortest distance with the minimum psychological weight of the user; and designing a charging behavior model based on different SOC values, and carrying out path planning and load prediction. According to the invention, the congestion condition of vehicles is effectively improved, the traffic flow peak value is reduced, and the traffic flow distribution is improved. By planning the path and the charging behavior of the electric vehicle, the fluctuation of regional power grid load is improved, and the stability of a power system is improved.
本发明公开了一种基于动态加权Dijkstra的EV负荷预测方法,包括如下步骤:建立车辆在时刻车辆数不同的道路中行驶的车速模型,确定选择超车动作的车辆比例;实时生成起终点模拟用户的出行行为和网络中的路径分布;对网络中的充电站进行初始化,使电动汽车的排队等待时间趋于相同;设置延时变化矩阵统计以分钟为单位的交通流情况;增加新的判断用户出行路径权重的方法,将原有的距离最短替换为用户的心理权重最小;设计基于不同SOC值的充电行为模型,进行路径规划和负荷预测。本发明有效的改善车辆的拥堵情况,减少交通流量峰值,改善交通流分布。通过规划电动汽车的路径和充电行为,改善地区电网负荷的波动,提高电力系统的稳定性。
EV load prediction method based on dynamic weighting Dijkstra
一种基于动态加权Dijkstra的EV负荷预测方法
2023-11-24
Patent
Electronic Resource
Chinese
IPC: | G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen |
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