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Research on dual-output port on-board charging system based on CLLC resonant converter

Author

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  • Kai Zhou
  • Hao Song
  • Ningzhi Jin
  • Dongyang Sun

Abstract

This paper proposes a dual-output port on-board charging system based on a CLLC resonant converter, which can realize the function of simultaneously charging high-voltage power batteries and low-voltage batteries. The system topology is composed of a front-stage PFC and a latter-stage CLLC resonant converter. The system uses a three-port transformer to couple the resonant converter, the high-voltage charging circuit, and the low-voltage charging circuit. The system also realizes soft switching through resonant components. According to the design requirements of the charging system, the control strategy of the dual-output ports is determined by analyzing the working mode and gain characteristics of the system and the dual closed-loop control structure is designed to realize the functions of power factor correction and wide-range voltage regulation. Simulation and experimental results verify the correctness of theoretical analysis and structural design.

Suggested Citation

  • Kai Zhou & Hao Song & Ningzhi Jin & Dongyang Sun, 2023. "Research on dual-output port on-board charging system based on CLLC resonant converter," PLOS ONE, Public Library of Science, vol. 18(2), pages 1-29, February.
    • Handle: RePEc:plo:pone00:0279558
    DOI: 10.1371/journal.pone.0279558
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