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Efficiency of the Wireless Power Transfer System with Planar Coils in the Periodic and Aperiodic Systems

Author

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  • Jacek Maciej Stankiewicz

    (Department of Electrical Engineering, Power Electronics and Power Engineering, Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D, 15-351 Bialystok, Poland)

  • Agnieszka Choroszucho

    (Department of Electrical Engineering, Power Electronics and Power Engineering, Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45D, 15-351 Bialystok, Poland)

Abstract

This article presents the results of the proposed numerical and analytical analysis of the Wireless Power Transfer System (WPT). The system consists of a transmitting surface and a receiving surface, where each of them is composed of planar spiral coils. Two WPT systems were analysed (periodic and aperiodic) considering two types of coils (circular and square). In the aperiodic system, the adjacent coils were wound in the opposite direction. The influence of the type of coils, the winding direction, the number of turns, and the distance between the coils on the efficiency of the WPT system was compared. In periodic models, higher efficiency was obtained with circular rather than square coils. The results obtained with both proposed methods were consistent, which confirmed the correctness of the adopted assumptions. In aperiodic models, for a smaller radius of the coil, the efficiency of the system was higher in the square coil models than in the circular coil models. On the other hand, with a larger radius of the coil, the efficiency of the system was comparable regardless of the coil type. When comparing both systems (periodic and aperiodic), for both circular and square coils, aperiodic models show higher efficiency values (the difference is even 57%). The proposed system can be used for simultaneous charging of many sensors (located in, e.g., walls, floors).

Suggested Citation

  • Jacek Maciej Stankiewicz & Agnieszka Choroszucho, 2021. "Efficiency of the Wireless Power Transfer System with Planar Coils in the Periodic and Aperiodic Systems," Energies, MDPI, vol. 15(1), pages 1-27, December.
    • Handle: RePEc:gam:jeners:v:15:y:2021:i:1:p:115-:d:710353
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    References listed on IDEAS

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    1. Sun, Longzhao & Ma, Dianguang & Tang, Houjun, 2018. "A review of recent trends in wireless power transfer technology and its applications in electric vehicle wireless charging," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 490-503.
    2. Barman, Surajit Das & Reza, Ahmed Wasif & Kumar, Narendra & Karim, Md. Ershadul & Munir, Abu Bakar, 2015. "Wireless powering by magnetic resonant coupling: Recent trends in wireless power transfer system and its applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 51(C), pages 1525-1552.
    3. Xuezhe Wei & Zhenshi Wang & Haifeng Dai, 2014. "A Critical Review of Wireless Power Transfer via Strongly Coupled Magnetic Resonances," Energies, MDPI, vol. 7(7), pages 1-26, July.
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    Cited by:

    1. Jacek Maciej Stankiewicz, 2023. "Evaluation of the Influence of the Load Resistance on Power and Efficiency in the Square and Circular Periodic WPT Systems," Energies, MDPI, vol. 16(7), pages 1-19, March.
    2. Xiaochen Zhang & Xiaona Wang & Pan Sun & Jun Sun & Jin Cai, 2023. "Mutual and Self-Inductance Variation in Misaligned Coupler of Inductive Power Transfer System: Mechanism, Influence, and Solutions," Energies, MDPI, vol. 16(13), pages 1-16, July.
    3. Zbigniew Sołjan & Maciej Zajkowski, 2022. "Extension and Correction of Budeanu Power Theory Based on Currents’ Physical Components (CPC) Theory for Single-Phase Systems," Energies, MDPI, vol. 15(21), pages 1-18, November.

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