The electric vehicle (EV) is the future of the modern automotive industry. However, the transmission performance of traditional wireless charging is highly influenced by the misalignment error between the transmitter and the receiver. This paper proposes a maximum power control method for the multiple transmitter coil wireless charging system, which can be used to charge stationary EVs freely and effectively in a wider range. An accurate and reliable mutual inductance estimation method is introduced to estimate M relying on the electric information on the transmitter side only without using empirical formulas and additional communication devices between both sides. Then, the paper proposes a control method, which can maximize the output power in a quite wider range. Experiments and simulations prove that the proposed method has a good performance on charging a receiver coil effectively in a wider range; therefore, it is suitable for charging stationary EVs in the parking space.

中文翻译：

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为停车位中的固定车辆充电的多输入无线功率传输的互感估计

电动汽车（EV）是现代汽车工业的未来。但是，传统无线充电的传输性能受发射器和接收器之间的未对准误差的很大影响。本文提出了一种用于多发射器线圈无线充电系统的最大功率控制方法，该方法可用于在更大范围内自由，有效地为固定式电动汽车充电。介绍一种准确可靠的互感估计方法来估计M仅依靠发射机侧的电子信息，而无需使用经验公式和两侧之间的其他通信设备。然后，本文提出了一种控制方法，该方法可以在相当宽的范围内最大化输出功率。实验和仿真证明，该方法在较宽的范围内对接收线圈有效充电具有良好的性能。因此，它适合为停车位中的固定式电动汽车充电。