一种一致性电动汽车充电负荷时空分布预测方法

By adopting an electric vehicle charging load prediction method based on stochastic user equilibrium theory, the problem of inconsistency between prediction results and reality in existing technologies is solved. This method achieves stable simulation and accurate prediction of electric vehicle travel and charging behavior, provides clear system optimization objectives and analytical expressions, and ensures the accuracy and stability of prediction results.

CN115495701BActive Publication Date: 2026-07-17TIANJIN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN UNIV
Filing Date
2022-09-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electric vehicle charging load forecasting methods are unable to accurately reflect the interaction of traffic conditions, resulting in inconsistencies between forecast results and reality. Furthermore, they lack clear system stability and analytical expressions, making it difficult to conduct quantitative analysis of influencing factors.

Method used

By employing a method based on stochastic user equilibrium theory, and through data acquisition, traffic network model establishment, traffic impedance information calculation, stochastic traffic assignment, and convergence testing modules, combined with an improved electric vehicle trip chain and charging model, and using the MDK-SP algorithm and an extended logit model, stable simulation and accurate prediction of electric vehicle trip and charging behavior can be achieved.

Benefits of technology

It achieves consistency between electric vehicle charging load prediction results and actual traffic conditions, provides clear system optimization objectives and analytical expressions, and can quantify the impact of multiple scenarios that are difficult to obtain in reality, ensuring the accuracy and stability of prediction results.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115495701B_ABST
    Figure CN115495701B_ABST
Patent Text Reader

Abstract

本发明公开一种一致性电动汽车充电负荷时空分布预测方法,包括如下步骤:数据采集及信息生成模块,根据采集的交通网络参数及历史数据和电动汽车性能及出行数据生成含电动汽车在内的车辆出行信息;交通网络模型建立及初始化模块,建立交通网络模型并初始化路段和转向流量 / 饱和度状态;交通阻抗信息计算模块,基于当前交通状态获取路段、转向和电动汽车单位里程能耗等交通阻抗信息;随机交通分配模块,基于随机用户均衡理论、电动汽车出行链和充电模型,采用MDK‑SP算法计算电动汽车及剩余车辆的出行信息,获取当前交通阻抗信息下电动汽车的出行和充电行为;交通状态更新模块,采用指定公式更新交通网络模型的路段和转向流量状态;收敛测试模块,判断交通网络模型路段和转向饱和度是否满足收敛公式,若满足则输出电动汽车充电负荷的时空分布和匹配的交通流量 / 饱和度;该方可以通过迭代计算实现匹配交通状态下电动汽车出行和充电行为的有效预测。
Need to check novelty before this filing date? Find Prior Art