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Precise Analysis on Mutual Inductance Variation in Dynamic Wireless Charging of Electric Vehicle

Author

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  • Ainur Rakhymbay

    (Department of Electrical and Electronic Engineering, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan)

  • Anvar Khamitov

    (Department of Electrical and Electronic Engineering, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan)

  • Mehdi Bagheri

    (Department of Electrical and Electronic Engineering, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan)

  • Batyrbek Alimkhanuly

    (Department of Electrical and Electronic Engineering, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan)

  • Maxim Lu

    (Department of Electrical and Electronic Engineering, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan)

  • Toan Phung

    (School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW 2052, Australia)

Abstract

Wireless power transfer provides an opportunity to charge electric vehicles (EVs) without electrical cables. Two categories of this technique are distinguished: Stationary Wireless Charging (SWC) and Dynamic Wireless Charging (DWC) systems. Implementation of DWC is more desirable than SWC as it can potentially eliminate challenges associated with heavy weight batteries and time-consuming charging processes. However, power transfer efficiency and range, lateral misalignment of coils as well as implementation cost are issues affecting DWC. These issues need to be addressed through developing coil architectures and topologies as well as operating novel semiconductor switches at higher frequencies. This study presents a small-scale dynamic wireless power transfer system for EV. It specifically concentrates on analyzing the dynamic mutual inductance between the coils due to the misalignment as it has significant influence on the EV charging process, particularly, over the output power and overall efficiency. A simulation study is carried out to explore dynamic mutual inductance profile between the transmitter and receiver coils. Mutual inductance simulation results are then verified through practical measurements on fabricated coils. Integrating the practical results into the model, an EV DWC power transfer simulation is conducted and the relation between dynamic mutual inductance and output power are discussed technically.

Suggested Citation

  • Ainur Rakhymbay & Anvar Khamitov & Mehdi Bagheri & Batyrbek Alimkhanuly & Maxim Lu & Toan Phung, 2018. "Precise Analysis on Mutual Inductance Variation in Dynamic Wireless Charging of Electric Vehicle," Energies, MDPI, vol. 11(3), pages 1-21, March.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:3:p:624-:d:135796
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    References listed on IDEAS

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    1. Weitong Chen & Chunhua Liu & Christopher H.T. Lee & Zhiqiang Shan, 2016. "Cost-Effectiveness Comparison of Coupler Designs of Wireless Power Transfer for Electric Vehicle Dynamic Charging," Energies, MDPI, vol. 9(11), pages 1-13, November.
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    Cited by:

    1. Yong Tian & Jindong Tian & Dong Li & Shijie Zhou, 2018. "A Multiple Legs Inverter with Real Time–Reflected Load Detection Used in the Dynamic Wireless Charging System of Electric Vehicles," Energies, MDPI, vol. 11(5), pages 1-20, May.
    2. Shijun Chen & Huwei Chen & Shanhe Jiang, 2019. "Optimal Decision-Making to Charge Electric Vehicles in Heterogeneous Networks: Stackelberg Game Approach," Energies, MDPI, vol. 12(2), pages 1-20, January.
    3. Stoyka, Kateryna & Di Mambro, Gennaro & Femia, Nicola & Maffucci, Antonio & Ventre, Salvatore & Villone, Fabio, 2021. "Behavioral modeling of Wireless Power Transfer System coils," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 183(C), pages 208-220.
    4. Jaber Abu Qahouq & Yuan Cao, 2018. "Control Scheme and Power Electronics Architecture for a Wirelessly Distributed and Enabled Battery Energy Storage System," Energies, MDPI, vol. 11(7), pages 1-20, July.
    5. Vladimir Kindl & Martin Zavrel & Pavel Drabek & Tomas Kavalir, 2018. "High Efficiency and Power Tracking Method for Wireless Charging System Based on Phase-Shift Control," Energies, MDPI, vol. 11(8), pages 1-19, August.

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