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Cost-Benefit Analysis of a Novel DC Fast-Charging Station with a Local Battery Storage for EVs

机译：电动汽车用本地蓄电池新型直流快速充电站的成本效益分析

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摘要

The increasing penetration of Electric Vehicles (EVs) and their charging systems is representing new highpower consumption loads for the distribution system operators (DSOs). To solve the problem of the EV range in terms of driving kilometers, the car manufacturers have invested resources on new EV models by increasing the size of the batteries. To satisfy EV load demand of the new EV models in urban areas the public DC Fast-Charging Station (DCFCS) is indispensable to recharge EVs rapidly. The introduction of the Battery Energy Storage within the DCFCSs is considered in this paper an alternative solution to reduce the operational costs of the charging stations as well as the ability to mitigate negative impacts during the congestion on the power grids. An accurate description of the DCFCS and its design system, which is able to decouple the peak load demand caused by EVs on the main grid and decrease the connection fees. Finally, an economic evaluation is done to evaluate the feasibility and the cost-benefit analysis (CBA) of the DCFCSs. The proposed approach considers various technical and economic issues, such as cost of installation, connection fees and life cycle cost of the batteries. The proposed cost-benefit analysis can be used to verify the effectiveness and applicability of DCFCS in large scale.
机译：电动汽车（EV）及其充电系统的日益普及代表了配电系统运营商（DSO）的新高功耗负载。为了解决行驶里程方面的EV范围问题，汽车制造商通过增加电池尺寸在新的EV车型上投入了资源。为了满足城市中新型电动汽车的电动汽车负载需求，公共直流快速充电站（DCFCS）对于快速为电动汽车充电是必不可少的。本文认为，在DCFCS中引入电池储能技术是降低充电站运营成本以及减轻电网拥堵期间负面影响的能力的替代解决方案。对DCFCS及其设计系统的准确描述，它能够使主电网上电动汽车引起的峰值负载需求解耦，并降低连接费用。最后，进行了经济评估，以评估DCFCS的可行性和成本效益分析（CBA）。所提出的方法考虑了各种技术和经济问题，例如安装成本，连接费用和电池的生命周期成本。所提出的成本效益分析可用于大规模验证DCFCS的有效性和适用性。

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