Research on Misalignment Performance of Magnetic Coupling Structure in Magnetically Coupled Resonant Wireless Power Transfer System

ZHANG Wenjie; BI Lufei; LIN Lingyan; SONG Jiancheng; JIA Lei; REN Hui

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Research on Misalignment Performance of Magnetic Coupling Structure in Magnetically Coupled Resonant Wireless Power Transfer System

更新时间：2025-12-08

- Research on Misalignment Performance of Magnetic Coupling Structure in Magnetically Coupled Resonant Wireless Power Transfer System
- Vol. 46, Issue 11, Pages: 4087-4095(2020)
- 作者机构：
  
  1. 太原理工大学煤矿电气设备与智能控制山西省重点实验室
  2. 太原科技大学电子信息工程学院
  3. 山西省经济信息中心
  4. 国网山西省电力公司太原供电公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 November 2020，
  
  Published：2020
- 稿件说明：
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ZHANG Wenjie, BI Lufei, LIN Lingyan, et al. Research on Misalignment Performance of Magnetic Coupling Structure in Magnetically Coupled Resonant Wireless Power Transfer System[J]. 2020, 46(11): 4087-4095.
DOI：

ZHANG Wenjie, BI Lufei, LIN Lingyan, et al. Research on Misalignment Performance of Magnetic Coupling Structure in Magnetically Coupled Resonant Wireless Power Transfer System[J]. 2020, 46(11): 4087-4095. DOI：

摘要

磁耦合结构作为磁耦合谐振式无线电能传输系统最核心的部分

其解析模型的建立、错位性能的分析及结构的设计优化对整个系统的传输性能研究起着关键作用。以圆盘形磁耦合结构为研究对象

首先应用电磁场理论推导了一、二次侧磁耦合结构未错位及错位时的互感解析新模型;然后研究了不含铁氧体及含铁氧体的磁耦合结构发生错位时的互感变化特性

提出了互感平稳变化范围的概念

优化了线圈结构。最后为了测试磁耦合结构的错位性能

搭建了一套传输功率为1 000 W的无线电能传输系统

测量及运行结果表明

建立的磁耦合结构互感解析模型以及错位性能分析方法具有较高的准确性和有效性。研究结果为无线充电系统分析及性能改善起到积极推动作用。

Abstract

The magnetic coupling structure is the core part of a magnetically coupled resonant wireless power transfer system. The establishment of an analytical model

the analysis of misalignment performance and the optimization of structure play a key role in the study of the transmission performance of the whole system. Consequently

the circular planar pad was taken as the research object. Firstly

a new mutual inductance analytical model was derived for the magnetic coupling structure without or with dislocation using the theory of electromagnetic field. Then

the mutual inductance characteristics of the magnetic coupling structure in the presence or absence of ferrite were studied and the concept of the stable variation range of mutual inductance was proposed

and the coil structure was optimized. Finally

in order to test the misalignment performance of the magnetic coupling structure

an experimental prototype with transmission power of 1 000 W was built. The measurement and operation results show that the mutual inductance analytical model and the misalignment performance analysis method of the magnetic coupling structure established in this paper have high accuracy and effectiveness. The results play a positive role in promoting the analysis and performance improvement of wireless charging system.

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