电源学报2023，Vol.21Issue(6)：144-151,8.DOI:10.13234/j.issn.2095-2805.2023.6.144
电动汽车无线充电磁耦合器屏蔽层的优化设计
Optimization and Design of Shielding Layer in Magnetic Coupler for Wireless Charging of Electric Vehicles
李卓玥 1王春芳 1魏芝浩 1满恩彤 1谭欣雨1
作者信息
- 1. 青岛大学电气工程学院,青岛 266071
- 折叠
摘要
Abstract
To address the issues of large volume and weight of a magnetic coupler for onboard wireless charging of electric vehicles as well as the susceptibility of ferrite fragmentation,a magnetic coupler with a composite shielding layer composed of ferrite magnetic sheets,nanocrystalline strips and aluminum foil was proposed in this paper.The performances of ferrite and four types of nanocrystalline magnetic cores were analyzed and compared by Maxwell,respectively.Based on machine learning,the optimal magnetic core structure of the magnetic coupler was obtained,and the structure of composite shielding layer and material composition ratio of each part were optimized.Compared with the traditional magnetic couplers composed of ferrite magnetic sheets and aluminum plates,the volume and weight of the magnetic coupler with the proposed composite shielding layer were reduced,while its mutual inductance and coupling coefficient were improved by 8.2%and 0.7%,respectively.In addition,its cost was reduced by 47%.Finally,a 2.5 kW experimental platform with a transmission distance of 12 cm was built for verification.关键词
无线充电/电动汽车/磁耦合器/电磁屏蔽/复合屏蔽层/纳米晶带材Key words
Wireless charging/electric vehicle/magnetic coupler/electromagnetic shielding/composite shielding layer/nanocrystalline strip分类
信息技术与安全科学引用本文复制引用
李卓玥,王春芳,魏芝浩,满恩彤,谭欣雨..电动汽车无线充电磁耦合器屏蔽层的优化设计[J].电源学报,2023,21(6):144-151,8.
