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Electromagnetic Interference in a Buried Multiconductor Cable Due to a Dynamic Wireless Power Transfer System

Author

Listed:
  • Silvano Cruciani

    (Department of Astronautics, Electrical and Energetics Engineering, Sapienza University of Rome, 00185 Rome, Italy)

  • Tommaso Campi

    (Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67040 L’Aquila, Italy)

  • Francesca Maradei

    (Department of Astronautics, Electrical and Energetics Engineering, Sapienza University of Rome, 00185 Rome, Italy)

  • Mauro Feliziani

    (Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67040 L’Aquila, Italy)

Abstract

The aim of this study is to predict the electromagnetic interference (EMI) effect produced by a dynamic wireless power transfer (DWPT) system on a buried multiconductor signal cable. The short-track DWPT system architecture is here considered with an operating frequency of 85 kHz and maximum power transferred to an EV equal to 10 kW. The EMI source is the DWPT transmitting coil which is activated when a vehicle passes over it. The electric and magnetic fields in the earth produced by the DWPT coil currents are calculated numerically using the finite elements method (FEM). These fields are then used to derive the voltage and current sources that appear in the field-excited multiconductor transmission line (MTL) model, used for the buried shielded cable. The MTL is analyzed considering the first ten harmonics of the current. The currents and voltages at the terminal ends are calculated considering the wireless charging of a single electric vehicle (EV) first, and then the simultaneous charging of 10 EVs which absorb a total power of 100 kW. The preliminary results reveal possible EMI problems in underground cables.

Suggested Citation

  • Silvano Cruciani & Tommaso Campi & Francesca Maradei & Mauro Feliziani, 2022. "Electromagnetic Interference in a Buried Multiconductor Cable Due to a Dynamic Wireless Power Transfer System," Energies, MDPI, vol. 15(5), pages 1-14, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:5:p:1645-:d:756261
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    References listed on IDEAS

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    1. Silvano Cruciani & Tommaso Campi & Francesca Maradei & Mauro Feliziani, 2020. "Active Shielding Applied to an Electrified Road in a Dynamic Wireless Power Transfer (WPT) System," Energies, MDPI, vol. 13(10), pages 1-14, May.
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