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Interleaved High Step-Up DC–DC Converter with Voltage-Lift and Voltage-Stack Techniques for Photovoltaic 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)

  • Yu-Hua Chen

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

Abstract

A novel interleaved high step-up DC–DC converter applied for applications in photovoltaic systems is proposed in this paper. The proposed configuration is composed of three-winding coupled inductors, voltage multiplier cells and a clamp circuit. The step-up voltage gain is effectively increased, owing to the voltage-stack and voltage-lift techniques using the voltage multiplier cells. The leakage inductor energy is recycled by the clamp circuit to avoid the voltage surge on a power switch. The low-voltage-rated power switches with low on-state resistances and costs can be used to decrease the conduction losses and increase the conversion efficiency when the voltage stresses of power switches for the converter are considerably lower than the high output voltage. The reverse-recovery problems of diodes are mitigated by the leakage inductances of the coupled inductors. Moreover, both the input current ripple and the current stress on each power switch are reduced, owing to the interleaved operation. The operating principle and steady-state analysis of the proposed converter are thoroughly presented herein. A controller network is designed to diminish the effect of the variations of input voltage and output load on the output voltage. Finally, the experimental results for a 1 kW prototype with 28–380 V voltage conversion are shown to demonstrate its effectiveness and performance.

Suggested Citation

  • Shin-Ju Chen & Sung-Pei Yang & Chao-Ming Huang & Yu-Hua Chen, 2020. "Interleaved High Step-Up DC–DC Converter with Voltage-Lift and Voltage-Stack Techniques for Photovoltaic Systems," Energies, MDPI, vol. 13(10), pages 1-20, May.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:10:p:2537-:d:359181
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    References listed on IDEAS

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    1. Amir Farakhor & Mehdi Abapour & Mehran Sabahi & Saeid Gholami Farkoush & Seung-Ryle Oh & Sang-Bong Rhee, 2020. "A Study on an Improved Three-Winding Coupled Inductor Based DC/DC Boost Converter with Continuous Input Current," Energies, MDPI, vol. 13(7), pages 1-18, April.
    2. Yong-Seng Wong & Jiann-Fuh Chen & Kuo-Bin Liu & Yi-Ping Hsieh, 2017. "A Novel High Step-Up DC-DC Converter with Coupled Inductor and Switched Clamp Capacitor Techniques for Photovoltaic Systems," Energies, MDPI, vol. 10(3), pages 1-17, March.
    3. Yanying Gao & Hongchen Liu & Jian Ai, 2018. "Novel High Step-Up DC–DC Converter with Three-Winding-Coupled-Inductors and Its Derivatives for a Distributed Generation System," Energies, MDPI, vol. 11(12), pages 1-12, December.
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    Cited by:

    1. 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.
    2. Eduardo Augusto Oliveira Barbosa & Márcio Rodrigo Santos de Carvalho & Leonardo Rodrigues Limongi & Marcelo Cabral Cavalcanti & Eduardo José Barbosa & Gustavo Medeiros de Souza Azevedo, 2021. "High-Gain High-Efficiency DC–DC Converter with Single-Core Parallel Operation Switched Inductors and Rectifier Voltage Multiplier Cell," Energies, MDPI, vol. 14(15), pages 1-18, July.
    3. Salvatore Musumeci, 2022. "Special Issue “Advanced DC-DC Power Converters and Switching Converters”," Energies, MDPI, vol. 15(4), pages 1-5, February.

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