Research on Anti-offset Characteristics of Double-Layer Overlapping Coil Used in Inductive Wireless Power Transfer system

2022 4th International Conference on Power and Energy Technology (ICPET) Pub Date : 2022-07-28 DOI:10.1109/ICPET55165.2022.9918394

Jing Xiao, Shaonan Chen, Chunmiao Ma, Yufang Chang, Wencong Huang

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Abstract

In order to deal with the problem of efficiency decreasing caused by the lateral offset of the wireless power transfer coil, a double-layer overlapping coil structure is proposed, which can realize multi-load charging and has strong anti-offset performance. First, the circuit model of the double-layer overlap coil system is established to analyze the factors that affect the efficiency of the system; secondly, the double-layer overlap coil model is established by COMSOL simulation to study the relationship between the efficiency of multiple charging areas and the lateral offset. Finally, in order to verify the authenticity of the theory and simulation, the experiment device is implemented and experimented results show that the change in the magnetic flux of the receiving coil will affect the coil efficiency. When lateral misalignment occurs, the proposed double-layer overlap coil structure can maintain high and stable magnetic field strength enables the system to effectively maintain high-efficiency energy transmission.

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感应无线电力传输系统中双层重叠线圈抗偏置特性研究

为了解决无线电力传输线圈横向偏移造成的效率下降问题，提出了一种双层重叠线圈结构，该结构可实现多负荷充电并具有较强的抗偏移性能。首先，建立了双层重叠线圈系统的电路模型，分析了影响系统效率的因素;其次，通过COMSOL仿真建立双层重叠线圈模型，研究多充电区效率与横向偏移量的关系;最后，为了验证理论和仿真的真实性，实现了实验装置，实验结果表明，接收线圈磁通量的变化会影响线圈效率。当发生横向错位时，所提出的双层重叠线圈结构可以保持高而稳定的磁场强度，使系统能够有效地保持高效的能量传输。

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

2022 4th International Conference on Power and Energy Technology (ICPET)

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