Metal Object Detection With Detection Coils Perpendicular to Power Coils for Wireless Power Transfer Systems

被引：7
|
作者：
Zhong, Wenxing [1 ]
Xiang, Fei [1 ]
Hu, Changsheng [1 ]
机构：
[1] Zhejiang Univ, Coll Elect Engn, Hangzhou 310027, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2023年 / 38卷 / 09期
关键词：
Metal object detection (MOD); wireless power transfer (WPT);
D O I：
10.1109/TPEL.2023.3257019
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, a metal object detection (MOD) method with detection coils perpendicular to power coils is proposed. Without a metal object, the induced voltage in the detection coils is ideally zero. When a metal object falls on the top of the Tx pad, an eddy current is induced, and this eddy current in the metal object will induce a voltage in the detection coils. The proposed method can perform well with misalignments between the Tx and Rx pads. No adjustments are required for different winding positions. The concept is well verified with experimental results.
引用
收藏
页码：10530 / 10534
页数：5
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