Fengyan Zhang, Chunpeng Sun, Wen Wei, C. Meng, Ming Li, B. Fang
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引用次数: 1
摘要
并网电动汽车的数量和种类持续快速增长，给电网带来了沉重的负担。为了解决这一问题，提出了V2G (Vehicle To Grid)概念，即电动汽车作为电网的新电源。随着近年来分布式可再生能源的快速发展，电动汽车充电是一种很好的利用方式。在中国厦门大学进行的直流微电网项目包括一个150kW的峰值光伏系统。在直流微电网的基础上，设计了一种独特的充电站，具有电网、光伏组件和电动汽车之间的三向能量流。本文提出了一种基于直流微电网的充电站，可以同时提供V2G服务。对变流器的控制策略进行了研究。最后，建立了基于MATLAB的仿真，验证了所提出的系统和控制策略的有效性。
Control strategy of electric charging station with V2G function based on DC micro-grid
The number and variety of electric vehicles connected to grid continue to grow rapidly, which results in a heavy burden on grid. To solve this problem, the concept of V2G (Vehicle to Grid) that electric vehicles could act as a new power source for grid was proposed. With distributed renewable energy developing fast recent years, charging EVs is a good way to use it. The DC micro-grid program being conducted at the Xiamen University (China) consists of a 150kW peak photovoltaic system. A unique charging station has been proposed designed on the basis of the DC micro-grid, featuring three-way energy flow among the power grid, PV modules and electric vehicles. The paper proposes a charging station based on DC micro-grid which also can provide V2G service. The control strategy of converters is investigated. Finally, simulation based on MATLAB is built to validate the availability and effectiveness of the proposed system and control strategy.
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