Electric vehicles (EVs) that offer grid services using the vehicle-to-grid (V2G) concept essentially require an interface that allows for directional power flow. This article presents a wireless bidirectional grid power interface for EVs that facilitate power flow between the grid, EV, and homes with nonlinear loads. The proposed wireless vehicle-to-grid-to-home power interface (WVGH-PI) uses the grid-side low frequency to dc converter, used in typical wireless bidirectional chargers only to facilitate the two-way energy flow, to improve the power quality by compensating for the harmonic power and reactive power of nonlinear household loads. To improve the overall efficiency of the interface, an adaptive dc-link voltage controller is also proposed. Operation of the proposed wireless interface is investigated under dynamic conditions and in different modes. The simulation and experimental results obtained from a 1-kW prototype are presented, benchmarking against conventional control, to demonstrate the validity of the proposed concept.

中文翻译：

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具有自适应DC链路的无线车辆到电网到家庭电源接口

使用车对网（V2G）概念提供网格服务的电动汽车（EV）本质上需要一个允许定向功率流的接口。本文介绍了一种用于电动汽车的无线双向电网电源接口，该接口可促进电网，电动汽车和带有非线性负载的房屋之间的功率流动。拟议的无线车载电网到家用电源接口（WVGH-PI）使用电网侧低频到直流转换器，用于典型的无线双向充电器中只是为了促进双向能量流，从而提高功率通过补偿非线性家庭负载的谐波功率和无功功率来提高质量。为了提高接口的整体效率，还提出了一种自适应直流链路电压控制器。在动态条件下和不同模式下研究了建议的无线接口的操作。给出了从1 kW原型获得的仿真和实验结果，并以常规控制为基准，以证明所提出概念的有效性。