Design of Dual-Output Wireless Power Transmission with Backup Power Considerations for Electric Scooter Applications

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society Pub Date : 2019-10-01 DOI:10.1109/IECON.2019.8927676

Shyh-Jier Huang, Jeng-Yi Chen, Ming-Jia Wu, Yu-Ting Lin, Tsong-Shing Lee

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Abstract

This paper proposes the design of dual-output wireless power transmission including backup mode operation for electric scooter applications. The study considers two modes of power transmission, where the power is delivered either from the adjacent battery or from the main power source to charge the scooter battery. Three inductive coils and three sets of full-bridges inverters are implemented in the circuit. The study first evaluates the geometrical structures of three inductive coils that include one transmitting coil and two receiving ones. The system is designed to operate at two frequencies to achieve different modes of operation using the same compensated capacitors. To validate the effectiveness of the propose configuration, the hardware realization is made with an achievement of efficiency of 92.7 % at the power delivery mode and 85.2%, at the backup mode. Test results support the practical value of the method for dual-output wireless charging, benefiting the development of transportation electrification.

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基于备用电源的电动滑板车双输出无线电力传输设计

本文提出了一种适用于电动滑板车的双输出无线电力传输的设计方案，包括后备模式操作。该研究考虑了两种动力传输模式，其中电力要么从相邻电池传递，要么从主电源为滑板车电池充电。在电路中实现了三个电感线圈和三组全桥逆变器。本研究首先评估了三个电感线圈的几何结构，其中包括一个发射线圈和两个接收线圈。该系统被设计为在两个频率下工作，以使用相同的补偿电容器实现不同的操作模式。为了验证所提配置的有效性，硬件实现在供电模式下的效率为92.7%，在备份模式下的效率为85.2%。测试结果支持了该双输出无线充电方法的实用价值，有利于交通电气化的发展。

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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IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

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