High Power Laser and Particle Beams, Volume. 36, Issue 2, 025021(2024)

Modeling and analysis of power processing unit based on secondary-side LLC resonant converter

Honglin Lu1, Xinjie Wu1, Debin Zhang1,2、*, Chengzhi Qu1, Zhongsong Zhang1, and Yu Zhang1
Author Affiliations
  • 1State Key Laboratory of Space Power Sources, Shanghai Institute of Space Power-Source, Shanghai 200245, China
  • 2College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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    Figures & Tables(15)
    Phase-shifted full-bridge circuit
    Primary LLC resonant circuit
    Common rectifier circuit topology
    Secondary LLC resonant circuit
    DC gain of secondary LLC resonant circuit
    State equivalent circuits
    P mode waveform
    PO mode waveform
    Sensitivity analysis of LLC resonant inductor
    Current and voltage waveforms in different modes
    Soft switching waveforms
    Output voltage and current
    Dynamic response to load change
    Efficiency of improved circuit
    • Table 1. Main parameters of the circuit

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      Table 1. Main parameters of the circuit

      output power Po/Wresonant frequency fr/kHzresonant inductanceLr/μHresonant capacitor Cr/μFadditional inductance Lm/μHtransformer ratio
      70491.3950.0325501∶8.42
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    Honglin Lu, Xinjie Wu, Debin Zhang, Chengzhi Qu, Zhongsong Zhang, Yu Zhang. Modeling and analysis of power processing unit based on secondary-side LLC resonant converter[J]. High Power Laser and Particle Beams, 2024, 36(2): 025021

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    Paper Information

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    Received: Jun. 8, 2023

    Accepted: Sep. 15, 2023

    Published Online: Mar. 21, 2024

    The Author Email: Debin Zhang (zhangdebinbin@163.com)

    DOI:10.11884/HPLPB202436.230171

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