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This paper discusses the impact of detuning on the performance of a WPT system with LCC-LCC compensation. Firstly, a simplified model is developed and used in this paper to analyze the effect of system detuning due to coil misalignment on the system characteristics, mainly due to the introduction of mismatched reactance, which affects the system efficiency. Secondly, the phase angle can be adjusted to minimize the resonant current while keeping the output power constant by analyzing the system model with active phase shifting. We use perturbation observation combined with phase shift control, and this measure is conducive to improving efficiency. The system efficiency is experimentally verified to be up to 95.4%.

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Minimum Resonant Current Control for Detuned WPT System with LCC-LCC Compensation

  • 会议论文

  • 发表日期：

    2025年

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  • Xiang Li,
  • Zimin Shao,
  • Yadong Wang,
  • Bangyin Liu

摘要

This paper discusses the impact of detuning on the performance of a WPT system with LCC-LCC compensation. Firstly, a simplified model is developed and used in this paper to analyze the effect of system detuning due to coil misalignment on the system characteristics, mainly due to the introduction of mismatched reactance, which affects the system efficiency. Secondly, the phase angle can be adjusted to minimize the resonant current while keeping the output power constant by analyzing the system model with active phase shifting. We use perturbation observation combined with phase shift control, and this measure is conducive to improving efficiency. The system efficiency is experimentally verified to be up to 95.4%.