Zhizhong Li, Fei Han, Guidong Zhang

A simplified model and its parameters optimization methodology of LCC‐S WPT compensation network under dual‐side‐detuned conditions

  • Applied Mathematics
  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Electronic, Optical and Magnetic Materials
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AbstractWireless power transfer (WPT) systems typically operate under broad coupling conditions. In response to the issue of significant fluctuations in output power due to changes in the coupling coefficient when the coupling coils are offset, this paper proposes a parameter design method for the LCC‐S topology that remains applicable under dual‐side‐detuned conditions. Presented the design principles of the dual‐side‐detuned circuit, and an iterative approach is employed to guide the parameter design process. It also introduced a method for selecting the rated coupling coefficient to minimize power fluctuations within the expected range. Experimental validation demonstrates that the robustness and resistance to coupling coefficient fluctuations of the proposed dual‐side‐detuned LCC‐S topology surpass those of other candidate schemes. Within a coupling variation range from 0.23 to 0.35, the maximum fluctuation rate of the output power remains below 6% while maintaining acceptable efficiency. This design has relevance to typical application scenarios.

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