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首页> 外文会议>IEEE Transportation Electrification Conference and Expo >Optimization of “I” Type Shielding for Low Air-Gap Magnetic and Electric Fields Inductive Wireless Power Transfer
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Optimization of “I” Type Shielding for Low Air-Gap Magnetic and Electric Fields Inductive Wireless Power Transfer

机译：低气隙磁场和电场感应无线功率传输的“ I”型屏蔽优化

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摘要

In an inductive wireless power transfer (IWPT) system, an “I” type magnetic shielding structure was proposed to simultaneously reduce the air-gap center region magnetic and electric fields without degrading the coil-to-coil efficiency. However, the proposed structure is difficult to implement due to the requirement of enormous ferrite materials. In this paper, the “I” type magnetic shielding design is optimized for the reduction of ferrite usage, cost, weight, and easy implementation, while maintaining nearly the same field distributions and power transfer efficiency. The optimized designs can reduce the ferrite usage by nearly 70% with nearly the same performance. The proposed methods are evaluated with a 2 kW, 30 cm transfer distance design example using finite element analysis (FEA).
机译：在感应无线电力传输（IWPT）系统中，提出了一种“ I”型磁屏蔽结构，以同时减小气隙中心区域的磁场和电场，而不会降低线圈到线圈的效率。但是，由于需要大量的铁氧体材料，因此难以实现所提出的结构。本文针对“ I”型磁屏蔽设计进行了优化，以减少铁氧体的使用，降低成本，减轻重量，易于实施，同时保持几乎相同的场分布和功率传输效率。经过优化的设计可以将铁氧体的使用量减少近70％，而性能几乎相同。在2 kW，30 cm传输距离设计示例中使用有限元分析（FEA）对提出的方法进行了评估。

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