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<p>Recent advances in the electric vehicle field have strengthened the motivation for enhancing and utilizing E-mobility. Electric vehicle (EV) charging through wireless power transfer (WPT) is a promising approach due to its convenience, lower maintenance, and reliability. However, its poor power transfer efficiency due to misalignment is a primary concern. This article proposes an improved multi-transmitter (Tx) coil configuration with LCC compensation for charging electric vehicles. In the multi-transmitter coil configuration, stimulating a specific coil where the receiver (Rx) coil is optimally aligned introduces complexity in execution due to the lack of an efficient and reliable technique for detecting the receiver coil. Thus, a simple and reliable detection technique to efficiently identify the receiver without using additional sensors on the receiver side is proposed in this paper. It utilizes the current distribution factor (CDF) to recognize the receiver and optimally stimulate the transmitter. The LCC network is designed to stabilize the primary coil current and maintain the resonant condition even under considerable misalignment. Furthermore, it minimizes the leakage flux and reduces the power losses of the system. A prototype model is developed with a 3.3&#xa0;kW WPT system to validate the proposed methodology for the enhancement of misalignment tolerance.</p>

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High misalignment tolerant LCC compensated wireless power transfer for electric vehicle charging applications

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Venkatesan Ramakrishnan,
  • William Christopher Immanuel,
  • Zahira Rahiman,
  • Srinivasan Krishnan,
  • Thirumoorthy Palanisamy,
  • Narayanamoorthi Rajamanickam,
  • A. Dominic Savio

摘要

Recent advances in the electric vehicle field have strengthened the motivation for enhancing and utilizing E-mobility. Electric vehicle (EV) charging through wireless power transfer (WPT) is a promising approach due to its convenience, lower maintenance, and reliability. However, its poor power transfer efficiency due to misalignment is a primary concern. This article proposes an improved multi-transmitter (Tx) coil configuration with LCC compensation for charging electric vehicles. In the multi-transmitter coil configuration, stimulating a specific coil where the receiver (Rx) coil is optimally aligned introduces complexity in execution due to the lack of an efficient and reliable technique for detecting the receiver coil. Thus, a simple and reliable detection technique to efficiently identify the receiver without using additional sensors on the receiver side is proposed in this paper. It utilizes the current distribution factor (CDF) to recognize the receiver and optimally stimulate the transmitter. The LCC network is designed to stabilize the primary coil current and maintain the resonant condition even under considerable misalignment. Furthermore, it minimizes the leakage flux and reduces the power losses of the system. A prototype model is developed with a 3.3 kW WPT system to validate the proposed methodology for the enhancement of misalignment tolerance.