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Experimental and Numerical Investigation of Termination Impedance Effects in Wireless Power Transfer via Metamaterial

Author

Listed:
  • Giovanni Puccetti

    (Department of Electrical, Electronic, and Information Engineering "Guglielmo Marconi"—DEI, University of Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy)

  • Christopher J. Stevens

    (Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK)

  • Ugo Reggiani

    (Department of Electrical, Electronic, and Information Engineering "Guglielmo Marconi"—DEI, University of Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy)

  • Leonardo Sandrolini

    (Department of Electrical, Electronic, and Information Engineering "Guglielmo Marconi"—DEI, University of Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy)

Abstract

This paper presents an investigation of the transmitted power in a wireless power transfer system that employs a metamaterial. Metamaterials are a good means to transfer power wirelessly, as they are composed of multiple inductively-coupled resonators. The system can be designed and matched simply through magneto-inductive wave theory, particularly when the receiver inductor is located at the end of the metamaterial line. However, the power distribution changes significantly in terms of transmitted power, efficiency and frequency if the receiver inductor slides along the line. In this paper, the power distribution and transfer efficiency are analysed, studying the effects of a termination impedance in the last cell of the metamaterial and improving the system performance for the resonant frequency and for any position of the receiver inductor. Furthermore, a numerical characterisation is presented in order to support experimental tests and to predict the performance of a metamaterial composed of spiral inductor cells with very good accuracy.

Suggested Citation

  • Giovanni Puccetti & Christopher J. Stevens & Ugo Reggiani & Leonardo Sandrolini, 2015. "Experimental and Numerical Investigation of Termination Impedance Effects in Wireless Power Transfer via Metamaterial," Energies, MDPI, vol. 8(3), pages 1-14, March.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:3:p:1882-1895:d:46565
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    References listed on IDEAS

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    1. Villa, Juan Luis & Sallán, Jesús & Llombart, Andrés & Sanz, José Fco, 2009. "Design of a high frequency Inductively Coupled Power Transfer system for electric vehicle battery charge," Applied Energy, Elsevier, vol. 86(3), pages 355-363, March.
    2. Giovanni Puccetti & Ugo Reggiani & Leonardo Sandrolini, 2013. "Experimental Analysis of Wireless Power Transmission with Spiral Resonators," Energies, MDPI, vol. 6(11), pages 1-10, November.
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    Cited by:

    1. Alberto, José & Brox, Jose, 2020. "Inverses of k-Toeplitz matrices with applications to resonator arrays with multiple receivers," Applied Mathematics and Computation, Elsevier, vol. 377(C).
    2. Wenjie Zhang & Jiancheng Song & Zongwei Liu & Shixuan Lyu & Hui Ren & Ye Zhang & Yuan Song, 2021. "Modeling and Analysis of Polarized Couplers under Misalignment for Electric Vehicle Wireless Charging Systems," Energies, MDPI, vol. 14(2), pages 1-15, January.
    3. Zhenshi Wang & Xuezhe Wei & Haifeng Dai, 2015. "Design and Control of a 3 kW Wireless Power Transfer System for Electric Vehicles," Energies, MDPI, vol. 9(1), pages 1-18, December.
    4. Sun-Han Hwang & Chung G. Kang & Yong-Ho Son & Byung-Jun Jang, 2015. "Software-Based Wireless Power Transfer Platform for Various Power Control Experiments," Energies, MDPI, vol. 8(8), pages 1-13, July.
    5. Zhenshi Wang & Xuezhe Wei, 2015. "Design Considerations for Wireless Charging Systems with an Analysis of Batteries," Energies, MDPI, vol. 8(10), pages 1-20, September.

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