首页|计及用户充电行为与隐私保护的联邦学习电动汽车短期充电负荷预测

计及用户充电行为与隐私保护的联邦学习电动汽车短期充电负荷预测

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随着电动汽车迅猛发展,其充电频率和日充电量急剧增高,对电网的稳定运行产生了较大冲击,因此针对电动汽车的充电负荷预测研究具有重要意义.但由于用户的充电行为数据具有隐私性,而当前研究构建的机器学习预测模型中欠缺对这一重要因素的考虑,致使预测精度不高.针对此问题,该文将用户的充电起止时间、充电全时段电池荷电状态、电池容量和用户选择的充电功率等充电行为因素考虑在内,并考虑上述用户行为数据的隐私性需求,提出了计及用户充电行为与隐私保护的联邦学习(federated learning,FL)电动汽车短期充电负荷预测方法.通过本地训练、中央聚合的模型训练机制,在保证用户隐私数据安全的前提下实现电动汽车短期充电负荷协同预测.最后,利用某市的多家运营商充电负荷数据对所提方法进行验证,结果表明所提方法在保证用户隐私数据安全的前提下,有效地提升了电动汽车短期充电负荷预测的精度,并具备较好的模型泛化能力.
Short-term Charging Load Prediction of Federated Learning Electric Vehicles After Accounting for User Charging Behavior and Privacy Protection
With the rapid development of electric vehicles,their charging frequency and daily charging volume have in-creased dramatically,which has a great impact on the stable operation of the power grid,thus it is important to study the charging load prediction for EVs.However,due to the privacy of user's charging behavior data,the machine learning pre-diction models constructed in the current study lack the consideration of this important factor,resulting in low prediction accuracy.To address this problem,this paper proposes a federated learning(FL)method for short-term EV charging load prediction that considers the user's charging behavior and privacy protection,namely,considering the user's charging start and end times,battery charge status,battery capacity,and user's selected charging power.The method is based on a local-ly trained and centrally aggregated model.The model training mechanism of local training and central aggregation is used to achieve collaborative short-term EV charging load prediction while ensuring the privacy of user data.Finally,the pro-posed method is validated by using charging load data from several operators in a city.The results show that the proposed method can be adopted to effectively improve the accuracy of EV short-term charging load prediction while ensuring the security of user privacy data,and has good model generalization capability.

electric vehiclesload predictionprivacy protectionuser behaviorfederated learningloss function

杨挺、覃小兵、冯相为、许哲铭

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天津大学电气自动化与信息工程学院,天津 300072

电动汽车 负荷预测 隐私保护 用户行为 联邦学习 损失函数

国家重点研发计划国家自然科学基金天津市自然科学基金重点项目

2022YFB2403900U206621321JCZDJC00640

2024

高电压技术
中国电力科学研究院 中国电机工程学会

高电压技术

CSTPCD北大核心
影响因子:2.32
ISSN:1003-6520
年,卷(期):2024.50(10)