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June 28, 2026World Electric Vehicle JournalOpen Access

FEM-Based Performance Analysis of Circular and Rectangular Planar Spiral Coils for EV Wireless Power Transfer Under Turns Number, Air-Gap, and Misalignment Variation

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Authors

AEAwatif EshaimiTNTamou NasserAEAhmed Essadki

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Overview

Randomized trial evaluates coil geometry impact on coupling performance in electric vehicles, suggesting optimal design choices.

Key Points

  • This research aims to compare circular and rectangular spiral coils for wireless power transfer in electric vehicles.
  • 3D FEM-based simulation framework
  • Evaluation of turn-number (10 to 30) under alignment variations
  • Assessment of air-gap (130-200mm) and lateral misalignment (±30mm)
  • Increasing turns enhances self-inductance and coupling performance for both geometries
  • Circular coil shows more robustness to misalignment than rectangular coil
  • Rectangular coil achieves better coupling with high turn numbers under controlled misalignment

Cite This Study

Eshaimi et al. (2026) studied this question.

synapsesocial.com/papers/6a40bae361bb0a67205c6a8ehttps://doi.org/10.3390/wevj17070332
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