A Voltage-Based Controller for an Electric-Vehicle Charger
A Voltage-Based Controller for an Electric-Vehicle Charger
复制标题
用于电动汽车充电器的基于电压的控制器
DOI：
10.1109/tvt.2015.2481712
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发表时间：
2016
影响因子：
6.8
通讯作者：
Samy Faddel
中科院分区：
文献类型：
--
作者：
A. Al;E. Sortomme;G. M. A. Akhtar;Samy Faddel
由于电动汽车（EV）集成到配电系统中带来的潜在挑战，最近一直是人们非常感兴趣的话题。为了解决这些问题，以往的工作主要集中在集中收费控制或分布式收费控制上。本文提出了一种适用于车载电动汽车充电器的自适应电压反馈控制器，与其他方法不同，该控制器不需要电动汽车与公用设施之间的实时通信。该控制器将充电点的系统电压与预设的参考电压进行比较。当系统电压接近该参考电压时，电动汽车充电减少。降低的充电率考虑了电动汽车电池的充电状态（SOC）和车主对充电结束时间（ECT）的偏好。为了验证所提出的控制结构，在有或没有其他电压控制机制的配电系统上进行了大量的仿真。仿真结果表明，该方法可以消除因电动汽车充电而导致的系统电压违例问题，同时保证了不同系统配置和电动汽车普及率的公平性。在其他电压控制装置和分布式发电机组存在的情况下，所提出的控制器表现出良好的性能。此外，它还可以与车到网服务集成，作为最低层次的分层控制。
Electric vehicle (EV) integration into the distribution system has been a topic of great interest lately due to the potential challenges that it poses. Previous works have focused on either centralized charge control or distributed charge control to solve these issues. In this paper, an adaptive voltage-feedback controller for an onboard EV charger is proposed, which, unlike other proposed methods, requires no real-time communication between the EV and the utility. This controller compares the system voltage at the point of charging with a preset reference voltage. EV charging is reduced as the system voltage approaches this reference. The reduced charging rate takes into account the EV battery state of charge (SOC) and the owner's end-of-charge time (ECT) preference. To validate the proposed control structure, extensive simulations are carried out on a distribution system with and without other voltage control mechanisms. Simulation results show that this method can eliminate system voltage violations that would otherwise be caused by EV charging while ensuring fairness among the various EVs, even with different system configurations and EV penetration levels. The proposed controller shows good performance in the presence of other voltage control devices and distributed generation units. Moreover, it can integrate with vehicle-to-grid services as the lowest level of hierarchical control.