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中国农业大学信息与电气工程学院,北京市 100083
Received:06 June 2024,
Revised:2024-09-29,
Published Online:06 December 2024,
Published:10 May 2025
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郑颖颖,缪新义,王晖等.支持时变需求响应激励价格的电动汽车优化充电策略[J].电力系统自动化,2025,49(9):96-106.
ZHENG Yingying,MIAO Xinyi,WANG Hui,et al.Optimal Charging Strategies for Electric Vehicles Supporting Time-varying Demand Response Incentive Price[J].Automation of Electric Power Systems,2025,49(9):96-106.
郑颖颖,缪新义,王晖等.支持时变需求响应激励价格的电动汽车优化充电策略[J].电力系统自动化,2025,49(9):96-106. DOI: 10.7500/AEPS20240606005.
ZHENG Yingying,MIAO Xinyi,WANG Hui,et al.Optimal Charging Strategies for Electric Vehicles Supporting Time-varying Demand Response Incentive Price[J].Automation of Electric Power Systems,2025,49(9):96-106. DOI: 10.7500/AEPS20240606005.
随着电动汽车(EV)渗透率的提高,其无序充电行为将加大电网调峰难度。同时,分布式新能源占比的提高给新型电力系统电力电量平衡带来挑战。针对规模化私家电动汽车无序充电的问题,以电动汽车聚合商在辅助服务市场提供新能源就地消纳为研究对象,提出了一种支持时变需求响应激励价格的电动汽车强化学习充电策略。首先,考虑电动汽车用户充电行为的不确定性和参与需求响应的意愿,建立了支持时变激励折扣的电动汽车充电优化调度模型。然后,将差异化的时变激励价格和电动汽车充电方案制定为一个马尔可夫决策过程,为聚合商实时调度选取合适的状态空间和动作空间。最后,基于仿真算例对比分析不同应用场景下聚合商收益、用户充电成本、新能源消纳比例,验证了所提强化学习模型的有效性。
As the penetration rate of electric vehicles (EVs) increases
the disordered charging behavior will increase the difficulty in grid peaking. At the same time
the increase in the proportion of distributed renewable energy brings challenges to the power balance of the new power system. Aiming at the problem of the disordered charging of scaled private EVs
a reinforcement learning charging strategy for EVs that supports the time-varying demand response incentive price is proposed by taking the EV aggregator to provide renewable energy with in-situ accommodation in the auxiliary service market as the research object. Firstly
an optimal scheduling model for EV charging that supports time-varying incentive discounts is established by considering the charging behavior uncertainty of EV users and their willingness to participate in demand response. Secondly
the differentiated time-varying incentive price and EV charging scheme are formulated as a Markov decision process to select appropriate state space and action space for real-time scheduling of aggregators. Finally
the effectiveness of the proposed reinforcement learning model is validated by comparing and analyzing the aggregator revenue
user charging cost
and renewable energy accommodation ratio in different application scenarios based on the simulation cases.
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