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Research on Tradeoff between Power and Efficiency of Wireless Power Transfer via Magnetic Resonance Coupling

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Abstract

Focusing on the tradeoff problem between the output power and transmission efficiency of magnetic coupling resonance wireless power transmission (MCRWPT) system, this paper firstly analyzes the series–series topology system by using the mutual inductance theory of concentrated parameters, and proposes the concept of power-efficiency composite function by using the method of normalization of output power and then the WPT system is assigned a weight factor. Based on that, the calculation expression of the optimal resonant frequency is obtained. The correctness of theoretical analysis is verified by simulation and experimental platform, which provides a useful reference for further improvement of power-efficiency synchronization and energy saving.

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Acknowledgments

This research was supported by the Key Research and Development Program of Shanxi Province (No. 2020GY-102), and China Aviation Science Fund (No. 2018ZC53031), and Northwestern Polytechnical University Graduate Innovation Fund (No.CX2020144).

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Authors and Affiliations

  1. Northwestern Polytechnical University School of Electronic Information, Xi’an, Shaanxi, China

    Tian Gao, Xin Wang, Linrui Jiang, Jing Hou & Yan Yang

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  1. Tian Gao
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  2. Xin Wang
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  3. Linrui Jiang
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  4. Jing Hou
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  5. Yan Yang
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Correspondence to Yan Yang.

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Gao, T., Wang, X., Jiang, L. et al. Research on Tradeoff between Power and Efficiency of Wireless Power Transfer via Magnetic Resonance Coupling. J. Electr. Eng. Technol. 16, 1427–1435 (2021). https://doi.org/10.1007/s42835-021-00705-9

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  • DOI: https://doi.org/10.1007/s42835-021-00705-9

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