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Design and Analysis of a Repetitive Current Controller for a Single-Phase Bridgeless SEPIC PFC Converter

Author

Listed:
  • Jinwoo Kim

    (Department of Electrical Engineering, Konkuk University, Seoul 05029, Korea)

  • Sanghun Han

    (Department of Electrical Engineering, Konkuk University, Seoul 05029, Korea)

  • Wontae Cho

    (Department of Electrical Engineering, Konkuk University, Seoul 05029, Korea)

  • Younghoon Cho

    (Department of Electrical Engineering, Konkuk University, Seoul 05029, Korea)

  • Hyunsoo Koh

    (Texas Instruments, 12500 TI Boulevard, Dallas, TX 75243, USA)

Abstract

This paper studies a repetitive controller design scheme for a bridgeless single-ended primary inductor converter (SEPIC) power factor correction (PFC) converter to mitigate input current distortions. A small signal modeling of the converter is performed by a fifth-order model. Since the fifth-order model is complex to be applied in designing a current controller, the model is approximated to a third-order model. Using the third-order model, the repetitive controller is designed to reduce the input current distortion. Then, the stability of the repetitive controller is verified with an error transfer function. The proposed controller performance is validated by simulation, and the experiment results show that the input current total harmonic distortion (THD) is improved by applying the proposed controller for an 800 W bridgeless SEPIC PFC converter prototype.

Suggested Citation

  • Jinwoo Kim & Sanghun Han & Wontae Cho & Younghoon Cho & Hyunsoo Koh, 2018. "Design and Analysis of a Repetitive Current Controller for a Single-Phase Bridgeless SEPIC PFC Converter," Energies, MDPI, vol. 12(1), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:12:y:2018:i:1:p:131-:d:194153
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    References listed on IDEAS

    as
    1. Cho, Younghoon, 2017. "Dual-buck residential photovoltaic inverter with a high-accuracy repetitive current controller," Renewable Energy, Elsevier, vol. 101(C), pages 168-181.
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    Cited by:

    1. Marcos Vinicius Mosconi Ewerling & Telles Brunelli Lazzarin & Carlos Henrique Illa Font, 2022. "Modular SEPIC-Based Isolated dc–dc Converter with Reduced Voltage Stresses across the Semiconductors," Energies, MDPI, vol. 15(21), pages 1-21, October.

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