Dual-band Wireless Power Transmission System for Dual-load Synchronous Power Supply

被引：0

作者：

Liang L. ^{[1
]}

Liu Z. ^{[1
]}

Fan S. ^{[1
]}

Tang G. ^{[1
]}

Hou Y. ^{[2
]}

Naghmash-Ali ^{[1
]}

机构：

[1] School of Electrical Engineering, Shandong University, Jinan, 250014, Shandong Province

[2] Energy Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, Shandong Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 10期

关键词：

Dual power supply; Dual-band; Magnetic coupling resonance; Multi-load power supply; Wireless supplying;

D O I：

10.13334/j.0258-8013.pcsee.190670

中图分类号：

学科分类号：

摘要：

In order to realize the simultaneous power supply of multiple devices by the wireless power supply system, a dual-band magnetic coupling resonant wireless power transmission system and an overlapping double circular coil structure were designed in this paper. The main system can realize high-power transmission, and its resonant frequency is set to 85kHz. And the auxiliary system can be used as a low-power transmission channel or signal transmission channel, and its resonant frequency is 30kHz. In this paper, the equivalent circuit model was established and the mathematical model was derived for the designed system. There must be strong cross-coupling between the overlapping coils. Thus, this paper analyzed the influence of the inductances and resonant frequencies of the system on the cross-coupling interference of the coils. Series filter inductances on the coils and reasonable matching of the resonant frequencies can effectively suppress current harmonics caused by cross-coupling of coils. The experimental platform of dual-band magnetic coupling resonance wireless power transmission system was built. The 40Ω resistor and 5Ω resistor were successfully powered at the same time. The experimental results verify the correctness and feasibility of the theoretical analysis. The designed system can realize simultaneous power supply for dual loads. © 2020 Chin. Soc. for Elec. Eng.

引用

页码：3297 / 3309

页数：12

共 17 条

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