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This paper introduces an innovative high-order compensation topology for Inductive Power Transfer (IPT) systems—the Dual-Sided LCCLC Compensation Topology. Employing the LCCLC configuration on both the primary and secondary sides of the IPT system, it effectively addresses significant variations in the coupling coefficient caused by the displacement of coupling coils, thereby stabilizing the output power. The compensation topology not only exhibits excellent offset resistance but also simplifies the parameter matching process. Moreover, it can achieve Constant Voltage Output (CVO) and effective suppression of higher harmonics, demonstrating its robust robustness. To validate the performance of the proposed topology, a 3.3 kW experimental platform was constructed. Simulation results indicate that, even with the coupling coefficient fluctuating within the range of 0.313 to 0.442, the system’s output power remains stable within ± 10% of 3.3 kW. This confirms excellent performance of the proposed compensation topology in counteracting the displacement of coupling coils.

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A Dual-Sided LCCLC-Compensated IPT System of Enhanced Power Stability Across Wide Coupling Variations

  • 会议论文

  • 发表日期：

    2025年

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  • Kai Ji,
  • Yuyang Li,
  • Tingyang Chen,
  • Xiaohui Xu,
  • Siqi Li

摘要

This paper introduces an innovative high-order compensation topology for Inductive Power Transfer (IPT) systems—the Dual-Sided LCCLC Compensation Topology. Employing the LCCLC configuration on both the primary and secondary sides of the IPT system, it effectively addresses significant variations in the coupling coefficient caused by the displacement of coupling coils, thereby stabilizing the output power. The compensation topology not only exhibits excellent offset resistance but also simplifies the parameter matching process. Moreover, it can achieve Constant Voltage Output (CVO) and effective suppression of higher harmonics, demonstrating its robust robustness. To validate the performance of the proposed topology, a 3.3 kW experimental platform was constructed. Simulation results indicate that, even with the coupling coefficient fluctuating within the range of 0.313 to 0.442, the system’s output power remains stable within ± 10% of 3.3 kW. This confirms excellent performance of the proposed compensation topology in counteracting the displacement of coupling coils.