用于MHz无线电力传输的并联电路e类ZVS逆变器分析与设计

2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC) Pub Date : 2018-11-01 DOI:10.1109/PEAC.2018.8590398

Xiaosheng Huang, Fenqiang Liang, Yipeng Kong, Shuyi Lin

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引用次数: 0

摘要

提出了一种用于兆赫无线电力传输系统的e类逆变器的设计方法。实现了零电压开关，降低了逆变器随负载变化的开关电压峰值。此外，还研究了考虑补偿电容电压限制的四线圈WPT系统的设计，并建立了样机来验证所提出的方法。开关峰值电压降至e类逆变器输入直流电压的3.4倍左右，随负载变化小于5%。发射线圈与接收线圈的耦合系数为0.078，在额定输出功率为60瓦时，系统效率达到83.5%，逆变器效率达到96.0%。

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Analysis and Design of Class-E ZVS Inverter with Parallel Circuit for MHz Wireless Power Transfer

This paper proposes a design method of class-E inverter for the mega-hertz wireless power transfer (WPT) systems. It realizes zero voltage switching (ZVS) and reduces the peak switch voltage of inverter with load variation. Moreover, the design of four-coil WPT systems considering voltage limitation of compensation capacitors is also studied, and a prototype is built to verify the methods proposed. The peak voltage of switch decreases to about 3.4 times of the input DC voltage of class-E inverter, and varies less than 5% with load variation. With the coupling coefficient of 0.078 between transmitting and receiving coils, the system efficiency reaches 83.5% at the rated output power of 60 watts, and the inverter efficiency reaches 96.0%.

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来源期刊

2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC)

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