The invention discloses an electric vehicle load prediction method considering meteorological factors and dynamic traffic, and belongs to the technical field of electric vehicle charging load prediction. The problems that the load peak-valley difference of an electric power system is increased and the electric energy quality is reduced due to rapid development and disordered access of electric automobiles are solved. Firstly, the dynamic process of energy flow in a vehicle is analyzed from the physical perspective, and a load model of the vehicle-mounted air conditioner is established; establishing a unit mileage power load model based on the change of the vehicle speed under different weathers; an OD analysis method and an improved Floyd dynamic search algorithm are adopted to distribute starting and ending points and plan an optimal path for the vehicle, and a driving behavior and a charging behavior are simulated; and finally, by taking the typical region as an example, designing a comparison experiment of an optimal path algorithm and an in-region electric vehicle load prediction experiment, and analyzing the electric vehicle charging load distribution conditions under four typical weather conditions. Compared with a dynamic Dijkstra algorithm and a static method, the improved Floyd dynamic search algorithm is adopted, and the driving condition closer to the reality is presented.
本发明公开了计及气象因素和动态交通的电动汽车负荷预测方法,属于电动汽车充电负荷预测技术领域。针对电动汽车迅猛发展且无序接入,将会引起电力系统负荷峰谷差增大、电能质量下降等问题。首先,从物理角度分析车内能量流动的动态过程,建立车载空调的负荷模型;基于不同天气下车速的变化,建立单位里程动力负荷模型;采用OD分析法和改进式Floyd动态搜索算法为车辆分配起止点和规划最优路径,模拟驾驶行为和充电行为;最后,以典型区域为例,设计最优路径算法的对比实验和区域内电动汽车负荷预测实验,分析四种典型天气状况下电动汽车充电负荷分布情况。本发明采用改进式Floyd动态搜索算法相比于动态Dijkstra算法和静态方法都呈现更接近真实的行驶情况。
Electric vehicle load prediction method considering meteorological factors and dynamic traffic
计及气象因素和动态交通的电动汽车负荷预测方法
2023-11-21
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / 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 |
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