Toward Extreme Fast Charging: Challenges and Opportunities in Directly Connecting to Medium-Voltage Line
Toward Extreme Fast Charging: Challenges and Opportunities in Directly Connecting to Medium-Voltage Line
复制标题
迈向极快充电：直连中压线路的挑战与机遇
DOI：
10.1109/mele.2018.2889547
复制
发表时间：
2019
影响因子：
3.4
通讯作者：
Lukic, Srdjan
中科院分区：
文献类型：
--
作者：
Srdic, Srdjan;Lukic, Srdjan
在本文中，我们介绍了当前最先进的快速充电技术。我们讨论了最先进的快速充电器，它们的设计，以及它们的主要特点。此外，我们详细介绍了如何将这些充电器组合在一起，形成模仿加油站功能的快速充电站。这些充电站的各种电力输送的概念进行了描述，我们讨论的优点和缺点，目前提出的方法。最后，我们提出了一种新的方法，其中充电站直接连接到中压（MV）线，从而消除了一些电力电子转换阶段和低频降压Transformer。在考虑极端快速充电率时，我们概述了这项技术的显著优势，并确定了使这项技术更广泛接受的关键技术差距。
In this article, we present the current state-of-the-art fast-charging technologies. We discuss the state-of-the art-fast chargers, their design, and their main characteristics. Additionally, we detail how these chargers can be combined to form fast-charging stations that mimic the functionality of a gasoline refueling station. Various power delivery concepts for these charging stations are described, and we discuss the benefits and shortcomings of the current and proposed approaches. Finally, we present a novel approach in which the charging station directly connects to the medium-voltage (MV) line, thus eliminating a number of power electronics conversion stages and the low-frequency step-down transformer. We outline significant benefits of this technology when considering extreme fast-charging rates, and we identify the key technology gaps in making this technology more widely accepted.