Hybrid Core Composed of Ferrite and Nanocrystalline Alloy of Wireless Charging System for Electric Vehicle Application

IF 4.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Industry Applications Pub Date : 2024-09-04 DOI:10.1109/TIA.2024.3454206

Jinping Kang;Pengfei Chen;Zihan Tian;Yue Qiu;Xueying Zhang;Fuyao Yang;Guorui Xu;Haisen Zhao

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引用次数: 0

Abstract

Nanocrystalline and ferrite are two commonly used magnetic cores for magnetic couplers of wireless charging systems (WCSs) in electric vehicle (EV) applications. Considering the advantages and limitations such as loss, saturation, temperature, and weight of those two types of magnetic cores, a hybrid core, with nanocrystalline and ferrite on receiving and transmitting sides respectively, is proposed in this study. Firstly, different topologies are generalized into the form of S-S topology, and the influence of load and magnetic material on the efficiency of the magnetic coupler is analyzed for an S-S compensated WCS. Then, an evaluation method of magnetic materials in WCS is proposed according to the derived optimal load. Based on the simulation comparison and consideration for practical applications, the layout of the proposed hybrid core is proposed. With the genetic algorithm, a detailed design process is given and a design scheme is also obtained. Finally, a prototype with the proposed hybrid core is manufactured for experimental validation. The results show that the efficiency of the magnetic coupler with the proposed hybrid core can reach 95.395% at 20 kHz, which is 2.5% higher and only slightly lower than that of the coreless magnetic coupler and magnetic coupler with ferrite core, respectively.

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电动汽车应用无线充电系统的铁氧体和纳米晶合金混合磁芯

纳米晶和铁氧体是电动汽车（EV）应用中无线充电系统（WCS）磁耦合器常用的两种磁芯。考虑到这两种磁芯在损耗、饱和度、温度和重量等方面的优势和局限性，本研究提出了一种在接收和发射端分别采用纳米晶和铁氧体的混合磁芯。首先，将不同的拓扑结构概括为 S-S 拓扑形式，并分析了 S-S 补偿 WCS 的负载和磁性材料对磁耦合器效率的影响。然后，根据得出的最佳负载，提出了 WCS 中磁性材料的评估方法。基于仿真比较和实际应用的考虑，提出了拟议混合磁芯的布局。通过遗传算法，给出了详细的设计过程，并获得了设计方案。最后，制造了带有拟议混合磁芯的原型进行实验验证。结果表明，采用所提混合磁芯的磁耦合器在 20 kHz 频率下的效率可达 95.395%，比无芯磁耦合器和铁氧体磁芯磁耦合器分别高出 2.5%和略低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Industry Applications 工程技术-工程：电子与电气

CiteScore

9.90

自引率

9.10%

发文量

747

审稿时长

3.3 months

期刊介绍： The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.