用于电动汽车充电的光伏、BESS和电网的潮流管理

Q1 Engineering

Bell Labs Technical Journal Pub Date : 2019-07-01 DOI:10.3126/tj.v1i1.27708

Menaka Karki, Dol Raj Kunwar, B. Sharma, Sunil Paudel, Tanka Nath Ojha

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引用次数: 0

摘要

与传统交通工具相比，电动汽车是最清洁的交通工具。与传统汽车不同，电动汽车不依赖石油产品，因此电动汽车的使用将很快主导交通运输领域。纯电动汽车需要充电站为电池充电。所提出的拓扑结构侧重于电动汽车负载充电的潮流管理。它提出了电动汽车充电系统，允许车主将车辆停放在充电站，并将电动汽车充电到所需的SOC水平。该系统在更大程度上促进了可再生能源的渗透，从而最大限度地降低了电网能源消耗的千瓦时成本，从而为充电站带来了可观的经济收入。本文将充电站建模为光伏、电池和电网，并提出了其中的电源管理策略。采用固定下垂法实现了负荷分担的调节和电源供电循环电流不匹配的防止。对充电站内电动汽车的电力需求趋势进行了预测，实现了需求与供给的匹配。采用储能系统是为了支持电站的持续电力供应。通过仿真验证了系统的有效性，并对非协调收费方式的负荷管理系统进行了验证。整个系统在MATLAB/Simulink中通过算法实现。

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Power Flow management among PV, BESS and Grid for EV Charging

Electric Vehicles (EVs) are the cleanest means of transportation compared to the conventional vehicles. Unlike conventional vehicles, EVs do not depend on petroleum products and thus use of electric vehicle is going to dominate the transportation sector soon. The battery electric vehicles need charging stations for their battery to charge. The proposed topology focuses on power flow management for charging of EV loads. it proposes electric vehicle charging system in which vehicle owners are allowed to park their vehicle in the charging station and EVs are charged up to their desired SOC level. The proposed system promotes penetration of RES to a larger extent which minimizes the kwh cost of grid energy consumption, and hence generating significant economical revenue of the charging station. In this paper, charging station is modeled with PV, battery and grid, and power management strategies are proposed among them. Regulation of load sharing and prevention of mismatch between circulating currents supplied by power sources is implemented using fixed droop method. The trend of power demand by EVs in the charging station is estimated and matching between demand and supply is implemented. Energy storage system is used in order to support continuous power availability in the station. The simulations are successfully implemented to validate the effectiveness of the system and to demonstrate the load management system by the uncoordinated method of charging. The overall system is implemented by algorithm run in MATLAB/Simulink.

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来源期刊

Bell Labs Technical Journal 工程技术-电信学

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The Bell Labs Technical Journal (BLTJ) highlights key research and development activities across Alcatel-Lucent — within Bell Labs, within the company’s CTO organizations, and in cross-functional projects and initiatives. It publishes papers and letters by Alcatel-Lucent researchers, scientists, and engineers and co-authors affiliated with universities, government and corporate research labs, and customer companies. Its aim is to promote progress in communications fields worldwide; Bell Labs innovations enable Alcatel-Lucent to deliver leading products, solutions, and services that meet customers’ mission critical needs.