近年来，电动汽车和插电式电动汽车（Plug-In Electric Vehicles, PEVs）的销量稳步增长，充电桩数量急剧增加，这一现象可能会给电网和当地配电电路和变压器造成负担，而且可能会导致电力公司的成本增加。文中介绍了智能电网系统的设计和实现逻辑，使电动汽车、PEV与电网之间能够实现动态交互。这种智能和动态的交互能够减轻电网负荷，从而最大限度地减少成本，避免负载过大造成的损害。文中以开发算法为重点，提出了完整的系统设计，该系统充电速度快、效率高，可以成功地用于减轻电网的负担。
英文摘要:
In recent years, the sales of electric vehicles and plug-in electric vehicles (PEVs) have been growing steadily, and the number of charging piles has increased sharply. This phenomenon may cause a burden on the power grid and local distribution circuits and transformers, and may lead to an increase in the cost of power companies. This paper introduces the design and implementation logic of smart grid system, which enables the dynamic interaction between electric vehicle, PEV and power grid. This kind of intelligent and dynamic interaction can reduce the load of power grid, so as to minimize the cost and avoid the damage caused by excessive load. This paper focuses on the development algorithm, and proposes a complete system design. The system has fast charging speed and high efficiency, which can be successfully used to reduce the burden of the power grid.