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Analysis and Design of a New High Voltage Gain Interleaved DC–DC Converter with Three-Winding Coupled Inductors for Renewable Energy Systems

Author

Listed:
  • Shin-Ju Chen

    (Department of Electrical Engineering, Kun Shan University, Tainan 710303, Taiwan)

  • Sung-Pei Yang

    (Department of Electrical Engineering, Kun Shan University, Tainan 710303, Taiwan
    Green Energy Technology Research Center, Kun Shan University, Tainan 710303, Taiwan)

  • Chao-Ming Huang

    (Department of Electrical Engineering, Kun Shan University, Tainan 710303, Taiwan)

  • Ping-Sheng Huang

    (Department of Electrical Engineering, Kun Shan University, Tainan 710303, Taiwan)

Abstract

In this article, a new non-isolated interleaved DC–DC converter is proposed to provide a high voltage conversion ratio in renewable energy systems. The converter configuration is composed of a two-phase interleaved boost converter integrating a voltage-lift capacitor and three-winding coupled inductor-based voltage multiplier modules to achieve high step-up voltage conversion and reduce voltage stresses on the semiconductors (switches and diodes). The converter can achieve a high voltage conversion ratio when working at a proper duty ratio. The voltage stresses on the switches are significantly lower than the output voltage, which enables engineers to adopt low-voltage-rating MOSFETs with low on -state resistance. The switches can turn on under zero-current switching (ZCS) conditions because of the leakage inductor series reducing switching losses. Some diodes can naturally turn off under ZCS conditions to alleviate the reverse–recovery issue and to reduce reverse–recovery losses. The input current has small ripples due to the interleaved operation. The leakage inductor energy is recycled and voltage spikes on the switches are avoided. The proposed converter is suitable for applications in which high voltage gain, high efficiency and high power are required. The principle of operation, steady-state analysis and design considerations of the proposed converter are described in detail. In addition, a closed-loop controller is designed to reduce the effect of input voltage fluctuation and load change on the output voltage. Finally, a 1000 W laboratory prototype is built and tested. The theoretical analysis and the performance of the proposed converter were validated by the experimental results.

Suggested Citation

  • Shin-Ju Chen & Sung-Pei Yang & Chao-Ming Huang & Ping-Sheng Huang, 2023. "Analysis and Design of a New High Voltage Gain Interleaved DC–DC Converter with Three-Winding Coupled Inductors for Renewable Energy Systems," Energies, MDPI, vol. 16(9), pages 1-23, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:9:p:3958-:d:1141979
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    References listed on IDEAS

    as
    1. Truong-Duy Duong & Minh-Khai Nguyen & Tan-Tai Tran & Young-Cheol Lim & Joon-Ho Choi, 2021. "Transformer-Less Switched-Capacitor Quasi-Switched Boost DC-DC Converter," Energies, MDPI, vol. 14(20), pages 1-19, October.
    2. Shin-Ju Chen & Sung-Pei Yang & Chao-Ming Huang & Huann-Ming Chou & Meng-Jie Shen, 2018. "Interleaved High Step-Up DC-DC Converter Based on Voltage Multiplier Cell and Voltage-Stacking Techniques for Renewable Energy Applications," Energies, MDPI, vol. 11(7), pages 1-17, June.
    3. Aline V. C. Pereira & Marcelo C. Cavalcanti & Gustavo M. Azevedo & Fabrício Bradaschia & Rafael C. Neto & Márcio Rodrigo Santos de Carvalho, 2021. "A Novel Single-Switch High Step-Up DC–DC Converter with Three-Winding Coupled Inductor," Energies, MDPI, vol. 14(19), pages 1-17, October.
    4. Márcio R. S. de Carvalho & Rafael C. Neto & Eduardo J. Barbosa & Leonardo R. Limongi & Fabrício Bradaschia & Marcelo C. Cavalcanti, 2021. "An Overview of Voltage Boosting Techniques and Step-Up DC-DC Converters Topologies for PV Applications," Energies, MDPI, vol. 14(24), pages 1-25, December.
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