The invention belongs to the technical field of electric vehicle charging and discharging control, and particularly relates to an electric vehicle charging and discharging control method and system considering battery loss. The method comprises the following steps: firstly, acquiring electric vehicle state data including electricity price, charging completion time set by a user, a battery electric quantity predicted value in a current period and battery electric quantity when the user expects to complete charging; the battery power prediction value of the current period is obtained by calculating the battery power percentage and a battery health degree prediction value obtained by a battery health degree prediction model; and inputting the electric vehicle state data into the reinforcement learning model to obtain electric vehicle charging and discharging power. The method provided by the invention is based on a reinforcement learning algorithm, and the earnings of the user in the charging and discharging process are improved; compared with an algorithm which does not consider the battery loss influence, the method provided by the invention causes less battery health degree loss; the defects of a model-based optimization method in practical application in the prior art are overcome, and the dynamic environment working condition has better applicability.

    本发明属于电动汽车充放电控制技术领域,具体涉及一种考虑电池损耗的电动汽车充放电控制方法及系统。首先获取电动汽车状态数据,包括电价、用户设定的充电完毕时间、当前周期的电池电量预测值和用户期望充电完毕时的电池电量;当前周期的电池电量预测值由电池电量百分比和电池健康度预测模型获得的电池健康度预测值计算获得;将电动汽车状态数据输入强化学习模型,得到电动汽车充放电功率。本发明提供方法基于强化学习算法,提升了用户在充放电过程中的收益;与未考虑电池损耗影响的算法相比,提出的方法造成的电池健康度损耗较小;克服了现有技术中的基于模型的优化方法在实际应用中的缺陷,且动态环境工况有着更好的适用性。


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    Title :

    Electric vehicle charging and discharging control method and system considering battery loss


    Additional title:

    一种考虑电池损耗的电动汽车充放电控制方法及系统


    Contributors:
    LU YUE (author) / FENG LILI (author) / LIU YANG (author) / WANG HONGBIAO (author) / LIU SHUN (author) / HE SHAOWEN (author) / ZHANG SHIHUI (author) / WANG JIAYU (author)

    Publication date :

    2024-04-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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