首页|High-efficiency coil design for wireless power transfer: Mitigating misalignment challenges in transportation

High-efficiency coil design for wireless power transfer: Mitigating misalignment challenges in transportation

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The wireless power transfer (WPT) technology has significantly transformed the transportation industry over the past decade, particularly in applications like electric vehicles. However, one major challenge remains: maintaining optimal energy transfer efficiency despite misalignment between the charging coils. This study investigates the impact of misalignment on energy coupling between coils and proposes a low-cost solution to address the issue. Three coil geometries-Square, Pentagon, and Double-D-are analyzed to determine the most efficient and stable configuration under misalignment conditions. The results indicate that the pentagon coil achieves over 99 % energy transfer efficiency, with tolerances of up to 15◦ angular and 2 cm horizontal misalignment. Furthermore, the pentagon coil exhibits a high degree of stability, with only a 5 % variation in the coupling coefficient under misaligned conditions, making it a promising solution for robust WPT systems in transportation.

Coupling coefficientEfficiencyMisalignmentQuality factorCoil designANSYS

Tushar Debnath、Suman Majumder、Krishnarti De

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Department of Electrical Engineering,National Institute of Technology Mizoram,Aizawl,India

2025

Energy

Energy

ISSN:0360-5442
年,卷(期):2025.325(Jun.15)
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