Structural Analysis of Loosely Coupled Transformers with FEA-Aided Visualization for Wireless Power Transfer Systems against Misalignment Tolerance
Structural Analysis of Loosely Coupled Transformers with FEA-Aided Visualization for Wireless Power Transfer Systems against Misalignment Tolerance
复制标题
利用有限元分析 (FEA) 辅助可视化技术对松耦合变压器进行结构分析，用于无线电力传输系统的失准公差
DOI：
10.3390/electronics11081218
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发表时间：
2022-04
期刊：
影响因子：
2.9
通讯作者：
Na Huang
中科院分区：
文献类型：
--
作者：
Yao Zhang;Jiayang Li;Fan Zhang;Zhangping Chen;Yaguang Kong;Na Huang
汽车无线电力传输（WPT）系统的主要问题包括弱错位容限，迫切需要通过松耦合变压器的设计来解决。本文提出了一种基于有限元分析（FEA）可视化的分析方法，该方法易于实施且能直接解释这种复杂的电磁现象。首先，通过有限元分析在三维和二维可视化中对具有不同绕组和磁芯排列的变压器结构进行建模。利用ANSYS Electronics分析空间耦合磁场和漏磁场的分布。精心挑选对耦合性能有重大影响的关键参数。然后，对这些关键参数以及耦合性能相对于错位容限进行定量分析。数值统计结果表明，当两个关键参数（内径和外径）分别约占变压器整体尺寸的20%和60%时，经过优化的三种结构的最大耦合系数一致出现。基于分析方法和三种结构的有限元分析结果，提出了一种具有螺线管形状结构且错位容限强的新型变压器。还通过有限元分析辅助的联合方法分析了新型结构在不同错位情况下的传输功率和传输效率。全面研究了所有这些结构的错位容限、关键结构尺寸和耦合系数之间的关系，为后续的多目标优化策略提供了指导。
The main problems of automotive wireless power transmission (WPT) systems include a weak misalignment tolerance are urgently required to be solved through the design of the loosely coupled transformer. In this paper, an analysis methodology based on finite element analysis (FEA) visualization is proposed, it is easy-implemented and straightforwardly explains this complex electromagnetic phenomenon. Firstly, the transformer structures with different winding and magnetic core arrangement were modeled by FEA in both 3-D and 2-D visualizations. The distribution of space coupling magnetic fields and leakage fields was analyzed by ANSYS Electronics. The key parameters that have a great influence on the coupling performance were delicately chosen. Then, the quantitative analysis of these key parameters and coupling performance against misalignment tolerance is presented. The numerical statistical result shows that the maximum coupling coefficient of the three structures that have been optimized consistently appears when the two key parameters, the inner and outer diameter, account for about 20% and 60% of the whole dimension of the transformers. A new transformer with a solenoid-shaped structure and strong misalignment tolerance was proposed based on the analysis methodology and the FEA results of the three structures. The delivered power and transfer efficiency under different misalignments of the new structure were analyzed via an FEA-aided joint method as well. The relationships among misalignment tolerance, key structural dimensions and coupling coefficients for all these structures were comprehensively investigated, which provide guidance for the subsequent multi-objective optimization strategies.
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影响因子：
3.9
作者：
Yao Pei;Y. Le Bihan;M. Bensetti;L. Pichon
通讯作者：
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DOI：
10.1109/iecon.2011.6119514
发表时间：
2011-11
期刊：
IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society
影响因子：
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DOI：
10.1109/ecce.2011.6064008
发表时间：
2011-11
期刊：
2011 IEEE Energy Conversion Congress and Exposition
影响因子：
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影响因子：
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