协调电动汽车充电以减少电网影响的算法比较与分析

IF 5.3 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Open Journal of Vehicular Technology Pub Date : 2024-07-30 DOI:10.1109/OJVT.2024.3435489
Cesar Diaz-Londono;Paolo Maffezzoni;Luca Daniel;Giambattista Gruosso
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引用次数: 0

摘要

电动汽车(EV)的采用率一直在快速增长,这给电动汽车充电基础设施与现有电网的整合带来了新的挑战。不协调的电动汽车充电会导致变压器过载,从而导致电网的不稳定和不可靠。本文介绍了两种用于电动汽车充电池的智能充电协调器,旨在管理电动汽车充电,同时考虑变压器功率限制。第一种策略旨在最大限度地降低运营成本,而第二种策略则最大限度地提高充电器的灵活性。两种协调器都考虑了电动汽车到达时间和充电状态的不确定性,以及对变压器的不灵活需求。在变压器功率限制方面,采用电网感知和电网非感知方法对这两种策略进行了评估和比较。利用真实世界的数据集,通过对三种场景的模拟研究来评估所提出策略的性能:单一充电站行为、停车场平均占用率和最坏情况占用率场景。与文献中的非协调策略和协调策略进行比较分析后发现,灵活性最大化策略提供了最统一的响应,通过优化充电功率和调度灵活性,有效缓解了变压器过载事件。这项研究强调了准确、创新的充电策略对电动汽车无缝集成的重要性,并强调了协调充电池对可靠的电动汽车充电运营的必要性。
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Comparison and Analysis of Algorithms for Coordinated EV Charging to Reduce Power Grid Impact
Electric vehicle (EV) adoption has been increasing rapidly, posing new challenges for integrating EV charging infrastructure with the existing electrical grid. Uncoordinated charging of EVs can cause transformers to overload, leading to instability and unreliability in the grid. This article introduces two smart charging coordinators for EV charging pools designed to manage EV charging while considering transformer power limits. The first strategy aims to minimize operational costs, while the second maximizes the charger flexibility. Both coordinators account for uncertainties in EV arrival time and state of charge, as well as inflexible demands on transformers. The strategies are evaluated and compared using grid-aware and grid-unaware methods regarding transformer power limits. Real-world datasets are utilized to assess the performance of the proposed strategies through simulation studies across three scenarios: single charging station behavior, average parking lot occupancy, and worst-case occupancy scenarios. Comparative analysis against uncoordinated and coordinated strategies from the literature reveals that the flexibility maximization strategy provides the most uniform response, effectively mitigating transformer overload events by optimizing charging power and scheduling flexibility. The study underscores the importance of accurate, innovative charging strategies for seamless EV integration and emphasizes the necessity of coordinated charging pools for reliable EV charging operations.
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来源期刊
CiteScore
9.60
自引率
0.00%
发文量
25
审稿时长
10 weeks
期刊最新文献
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