Simonazzi Mattia, Sandrolini Leonardo, Mariscotti Andrea
Department of Electrical, Electronic and Information Engineering (DEI), University of Bologna, 40136 Bologna, Italy.
Department of Electrical, Electronics and Telecommunication Engineering and Naval Architecture (DITEN), University of Genova, 16145 Genova, Italy.
Sensors (Basel). 2022 Mar 17;22(6):2317. doi: 10.3390/s22062317.
Receiver position sensing is investigated in a dynamic wireless power transfer (DWPT) system for electric vehicle (EV) charging. Exploiting the peculiar behaviour of the resonator arrays input impedance, it is possible to identify the position of the receiver coil by exciting the first array resonator with a signal at a proper frequency and measuring the resulting current. An analytical expression of the input impedance of the resonator array coupled with the EV receiver coil placed in a generic position is provided; its sensitivity to different circuit parameters is also analysed. The outline of a simple and effective algorithm for the localization of the EV is proposed and applied to a test case.
针对电动汽车（EV）充电的动态无线电力传输（DWPT）系统，对接收器位置传感进行了研究。利用谐振器阵列输入阻抗的特殊行为，通过以适当频率的信号激励第一个阵列谐振器并测量产生的电流，就可以识别接收器线圈的位置。给出了与放置在任意位置的电动汽车接收器线圈耦合的谐振器阵列输入阻抗的解析表达式；还分析了其对不同电路参数的灵敏度。提出了一种简单有效的电动汽车定位算法，并将其应用于一个测试案例。
