This article proposes and implements a selective wireless power transfer (WPT) system based on magnetic field editing technology. Compared with the traditional WPT without control of power regions, the proposed system can deliver the energy with higher safety, flexibility, selectivity, and can be applied to multiple receivers. The algorithms for current calculation and synchronized control strategies are given to construct the desired magnetic field effectively. The optimization process based on the receiver configuration and voltage threshold is also demonstrated. Both simulation and experimental results validate that the magnetic field distribution can be arbitrarily edited through the proposed current control strategy, and realize the selectivity of the powering area. A prototype of the proposed system with five transmitters is constructed and tested, which can successfully deliver wireless power of 14 W over the distance of three times larger than the radius of the receiver coil with the transmission efficiency over 79%.

中文翻译：

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使用磁场编辑的选择性无线电力传输

本文提出并实现了一种基于磁场编辑技术的选择性无线电力传输（WPT）系统。与没有功率区域控制的传统WPT相比，所提出的系统可以提供具有更高安全性、灵活性和选择性的能量，并且可以应用于多个接收器。给出了电流计算和同步控制策略的算法，以有效地构建所需的磁场。还演示了基于接收器配置和电压阈值的优化过程。仿真和实验结果均验证了通过提出的电流控制策略可以任意编辑磁场分布，实现供电区域的选择性。