arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2601.03476eess.SYcs.AIcs.LGcs.MAcs.SY
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在不确定环境下为车辆到建筑系统进行在线决策

Online Decision-Making Under Uncertainty for Vehicle-to-Building Systems

Vanderbilt University(范德比大学);Nissan Advanced Technology Center - Silicon Valley(日产先进技术中心-硅谷)

Rishav Sen, Yunuo Zhang, Fangqi Liu, Jose Paolo Talusan, Ava Pettet, Yoshinori Suzue, Ayan Mukhopadhyay, Abhishek Dubey

AI总结:

本研究提出了一种基于马尔可夫决策过程的在线决策方法,用于解决车辆到建筑系统在不确定环境下的优化问题,通过在线搜索和启发式剪枝提升效率,实验表明其优于现有方法。

摘要:

车辆到建筑(V2B)系统整合了物理基础设施,如智能建筑和连接到建筑的电动汽车(EVs)以及数字控制机制,以管理能源使用。通过利用电动汽车作为灵活的能量储备,建筑可以动态地为其充电和放电,以在时间变化的电价和需求收费政策下优化能源使用并降低成本。这种设置导致了V2B优化问题,其中建筑协调电动汽车的充电和放电以最小化总电力成本,同时满足用户充电需求。然而,V2B优化问题具有挑战性,因为:(1)电价波动,包括能源费用(/kWh)和需求费用(/kW);(2)长期规划时间范围(通常超过30天);(3)异构充电器具有不同的充电速率、可控性和方向性(即单向或双向);(4)用户出发时的电池水平以确保满足用户需求。与现有方法通常将此设置建模为单次组合优化问题不同,我们强调先前工作的关键局限性,并将V2B优化问题建模为马尔可夫决策过程(MDP),即随机控制过程。解决由此产生的MDP具有挑战性,因为状态和动作空间很大。为了解决大状态空间的挑战,我们利用在线搜索,并通过领域特定的启发式方法来修剪不值得的行动。我们与日产先进技术中心-硅谷合作验证了我们的方法。使用他们电动汽车测试平台的数据,我们展示了所提出框架显著优于现有最先进方法。

英文摘要:

Vehicle-to-building (V2B) systems integrate physical infrastructures, such as smart buildings and electric vehicles (EVs) connected to chargers at the building, with digital control mechanisms to manage energy use. By utilizing EVs as flexible energy reservoirs, buildings can dynamically charge and discharge them to optimize energy use and cut costs under time-variable pricing and demand charge policies. This setup leads to the V2B optimization problem, where buildings coordinate EV charging and discharging to minimize total electricity costs while meeting users' charging requirements. However, the V2B optimization problem is challenging because of: (1) fluctuating electricity pricing, which includes both energy charges ($/kWh) and demand charges ($/kW); (2) long planning horizons (typically over 30 days); (3) heterogeneous chargers with varying charging rates, controllability, and directionality (i.e., unidirectional or bidirectional); and (4) user-specific battery levels at departure to ensure user requirements are met. In contrast to existing approaches that often model this setting as a single-shot combinatorial optimization problem, we highlight critical limitations in prior work and instead model the V2B optimization problem as a Markov decision process (MDP), i.e., a stochastic control process. Solving the resulting MDP is challenging due to the large state and action spaces. To address the challenges of the large state space, we leverage online search, and we counter the action space by using domain-specific heuristics to prune unpromising actions. We validate our approach in collaboration with Nissan Advanced Technology Center - Silicon Valley. Using data from their EV testbed, we show that the proposed framework significantly outperforms state-of-the-art methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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