Analysis and comparison of the coupled coil structures in dual‐load magnetic coupled resonance wireless power transfer systems

IF 1.8 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Circuit Theory and Applications Pub Date : 2024-08-08 DOI:10.1002/cta.4193

Jun Cai, Ying Yan, Adrian David Cheok, Xin Zhang

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Abstract

The dual‐load magnetic coupled resonance wireless power transfer (WPT) technology has the advantages of integrated conversion function, higher power density, and higher energy utilization rate. Reasonable coil structure selection and design is a challenge in the dual load WPT system. This article conducts electromagnetic analysis on three types of coil structures: circular–circular, rectangular–circular, and rectangular–rectangular, and uses Ansys Maxwell software to analyze and compare the magnetic field distribution intensity and transmission characteristics of each structure when the coil is offset. The analysis results showed that the rectangular–rectangular coils have stronger offset characteristics. Therefore, the double‐load MCR‐WPT system ultimately adopts the rectangular–rectangular coil structure. The transmitting and receiving coils of the WPT system were wound and tested, and the dual‐load WPT system with rectangular–rectangular coupling coil structures are constructed for experimental verification.

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双负载磁耦合共振无线电力传输系统中耦合线圈结构的分析与比较

双负载磁耦合共振无线电力传输（WPT）技术具有集成转换功能、更高的功率密度和更高的能量利用率等优点。合理的线圈结构选择和设计是双负载 WPT 系统面临的挑战。本文对圆形-圆形、矩形-圆形和矩形-矩形三种线圈结构进行了电磁分析，并使用 Ansys Maxwell 软件分析比较了线圈偏移时各结构的磁场分布强度和传输特性。分析结果表明，矩形-矩形线圈具有更强的偏移特性。因此，双负载 MCR-WPT 系统最终采用了矩形-矩形线圈结构。对 WPT 系统的发射线圈和接收线圈进行了绕制和测试，并构建了采用矩形-矩形耦合线圈结构的双负载 WPT 系统进行实验验证。

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来源期刊

International Journal of Circuit Theory and Applications 工程技术-工程：电子与电气

CiteScore

3.60

自引率

34.80%

发文量

277

审稿时长

4.5 months

期刊介绍： The scope of the Journal comprises all aspects of the theory and design of analog and digital circuits together with the application of the ideas and techniques of circuit theory in other fields of science and engineering. Examples of the areas covered include: Fundamental Circuit Theory together with its mathematical and computational aspects; Circuit modeling of devices; Synthesis and design of filters and active circuits; Neural networks; Nonlinear and chaotic circuits; Signal processing and VLSI; Distributed, switched and digital circuits; Power electronics; Solid state devices. Contributions to CAD and simulation are welcome.

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