Design and Performance Analysis of New Coupling Magnetic Core Structure for Dynamic Wireless Charging System of Electric Vehicle,Energy Technology

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Design and Performance Analysis of New Coupling Magnetic Core Structure for Dynamic Wireless Charging System of Electric Vehicle
Energy Technology ( IF 3.6 ) Pub Date : 2023-12-17 , DOI: 10.1002/ente.202300853
Xiaoju Yin ₁ , Li Zhou ₁ , Bo Li ₁

Affiliation

Aiming at the problems of high cost, low efficiency, low power, and high electromagnetic radiation in the dynamic wireless charging system for electric vehicles (EVs), the cover-like coupling structure and the return-like coupling structure are designed, and the unique concave structure has excellent engineering practicability. Using Ansoft software for simulation and analysis, the newly proposed two coupling structures have significantly improved the induced voltage and electromagnetic induction strength at the pickup end compared with other commonly used coupling core structures. According to the advantages of practical applications, the application of its composite core structure for simulation and analysis proves that the cover-like structure of the magnetic field strength at the pickup end not only enhances the magnetic field strength on the coil but also has a good magnetic field shielding effect. The lateral displacement of the EV is kept within the range of 10 cm, the coupling distance is 0–5 cm, the charging is stable, and the transmission efficiency is high. Finally, a dynamic wireless charging experimental platform for small EVs is constructed, which verifies that the new coupling core structure can significantly improve the transmission power and efficiency of the charging system and significantly reduce the economic cost.

中文翻译：

电动汽车动态无线充电系统新型耦合磁芯结构设计及性能分析

针对电动汽车动态无线充电系统中成本高、效率低、功耗低、电磁辐射高等问题，设计了盖状耦合结构和返回状耦合结构，并提出了独特的解决方案。凹形结构具有优良的工程实用性。利用Ansoft软件进行仿真分析，新提出的两种耦合结构与其他常用的耦合铁芯结构相比，拾音端的感应电压和电磁感应强度均得到显着提高。根据实际应用的优点，应用其复合磁芯结构进行仿真分析，证明拾音端磁场强度的罩状结构不仅增强了线圈上的磁场强度，而且具有良好的磁性能。磁场屏蔽作用。电动汽车横向位移保持在10厘米范围内，耦合距离0-5厘米，充电稳定，传输效率高。最后搭建了小型电动汽车动态无线充电实验平台，验证了新型耦合核心结构能够显着提高充电系统的传输功率和效率，并显着降低经济成本。

更新日期：2023-12-17

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