Noncooperative Metal Object Detection Using Pole-to-Pole EM Distribution Characteristics for Wireless EV Charger Employing DD Coils

Songyan Niu1; Qingyu Zhao1; Haibiao Chen1; Shuangxia Niu2; Linni Jian1

2023

10.1109/TIE.2023.3292870

IEEE Transactions on Industrial Electronics   影响因子和分区

1557-9948

1557-9948

Metal object detection (MOD) is indispensable for wireless electric vehicle charging (WEVC) systems for safety concerns. Most recently, interests are growing in MOD by electromagnetic (EM) sensing. However, current works based on EM sensing rarely target the systems with DD coils, a promising coil type for commercialization. Additionally, EM sensing schemes are mostly derived from a mindset, viz., cooperation between two sensing coils to obtain the voltage difference as a MOD criterion. Hence, undesired out-of-phase incident becomes an inherent problem jeopardizing the success rates of detection. In this article, noncooperative MOD, which solely relies on the voltages of individual sensing coils rather than cooperative ones, is proposed with absolute confidence in detection results. A unique sensing coil array is devised to suit the field characteristics of DD coils perfectly. Size-modulated patch coils are created to eliminate the undetectable zones with proper polarity configuration. Moreover, virtual double-layer sensing coils are constructed to enhance MOD's reliability. Tested by 13 different positions and three types of MOs using a 3.0-kW WEVC prototype, the induced voltages reach at least four times the threshold value. Moreover, the stability of the proposed method is verified successfully no matter the system operates in light-load or heavy-load conditions.

DD coil electric vehicle (EV) inductive power transfer (IPT) metal object detection (MOD) sensing coils

SCI ; EI

英语

第一

20233014430496

Electric loads ; Electric power distribution ; Electric vehicles ; Energy transfer ; Inductive power transmission ; Inductive sensors ; Object detection ; Object recognition

Electric Power Systems:706.1 ; Electric Power Transmission:706.1.1 ; Electric Power Distribution:706.1.2 ; Radio Systems and Equipment:716.3 ; Data Communication, Equipment and Techniques:722.3 ; Data Processing and Image Processing:723.2 ; Control Instrumentation:732.2

ENGINEERING

2-s2.0-85165240872

IEEE

1.Southern University of Science and Technology, Shenzhen, China
2.The Hong Kong Polytechnic University, Kowloon, Hong Kong

Songyan Niu,Qingyu Zhao,Haibiao Chen,et al. Noncooperative Metal Object Detection Using Pole-to-Pole EM Distribution Characteristics for Wireless EV Charger Employing DD Coils[J]. IEEE Transactions on Industrial Electronics,2023,PP(99):1-10.

Songyan Niu,Qingyu Zhao,Haibiao Chen,Shuangxia Niu,&Linni Jian.(2023).Noncooperative Metal Object Detection Using Pole-to-Pole EM Distribution Characteristics for Wireless EV Charger Employing DD Coils.IEEE Transactions on Industrial Electronics,PP(99),1-10.

Songyan Niu,et al."Noncooperative Metal Object Detection Using Pole-to-Pole EM Distribution Characteristics for Wireless EV Charger Employing DD Coils".IEEE Transactions on Industrial Electronics PP.99(2023):1-10.