1. 異物回避を可能とするフェーズドアレイ無線給電におけるインピーダンス変換回路導入による実用的検討
- Subjects
coils arrangement optimization ,magnetic field suppression ,multiple transmitters ,Wireless power transfer (WPT) ,magnetic resonant coupling - Abstract
Wireless power transfer (WPT) systems used for electric vehicles (EV) in parking lots have a problem of abnormal heat generation of metal due to magnetic field absorption. Therefore, we created a system that maintains high transmission efficiency while suppressing the magnetic field around metallic foreign objects.However, there is a problem that the value obtained by the simulation is larger than the upper limit of the input voltage that can be reproduced on the actual device. Therefore, we introduced a CLC matching circuit to the actual device, which has the effect of lowering the input voltage while maintaining the input current value.In this paper, we conducted a demonstration experiment to confirm whether the CLC circuit works as theoretically in the 2:1 transmission circuit of the actual machine.
- Published
- 2023