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An Overview of Voltage Boosting Techniques and Step-Up DC-DC Converters Topologies for PV Applications

Author

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  • Márcio R. S. de Carvalho

    (Power Electronics and Drives Research Group (GEPAE), DEE, Universidade Federal de Pernambuco, Recife 50740-530, Brazil)

  • Rafael C. Neto

    (Power Electronics and Drives Research Group (GEPAE), DEE, Universidade Federal de Pernambuco, Recife 50740-530, Brazil)

  • Eduardo J. Barbosa

    (Power Electronics and Drives Research Group (GEPAE), DEE, Universidade Federal de Pernambuco, Recife 50740-530, Brazil)

  • Leonardo R. Limongi

    (Power Electronics and Drives Research Group (GEPAE), DEE, Universidade Federal de Pernambuco, Recife 50740-530, Brazil)

  • Fabrício Bradaschia

    (Power Electronics and Drives Research Group (GEPAE), DEE, Universidade Federal de Pernambuco, Recife 50740-530, Brazil)

  • Marcelo C. Cavalcanti

    (Power Electronics and Drives Research Group (GEPAE), DEE, Universidade Federal de Pernambuco, Recife 50740-530, Brazil)

Abstract

The development of technologies to improve the performance of photovoltaic (PV) module integrated converters (MICs) is fundamental to increase the use of distributed generation systems with photovoltaic power source in large urban centers, mainly for complex residential roofs. For two-stage PV MICs, high step-up DC-DC converters are required to boost the low PV module voltage to a higher voltage, in order to suit the DC bus voltage requirements of grid-tied inverters. Thus, to support researchers interested in developing DC-DC power conversion for PV microinverters, this paper classifies the DC-DC converters according to their operational and constructive characteristics and presents some elementary voltage-boosting techniques to aid in analyzing and understanding more complex topologies. Finally, high step-up DC-DC converters based on magnetic coupling and switched capacitor widely cited by important works related to PV applications are presented, with their principles of operation analysed in a simple and objective way, but sufficient to understand their capability to provide high voltage gain. The approach presented by this paper leads to insight into how to place the energy storage elements to create new topologies of DC-DC converters, so that high voltage gain is achieved, and how to analise the high voltage gain capability of complex topologies

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:24:p:8230-:d:697020
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    References listed on IDEAS

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    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. Sri Revathi, B. & Prabhakar, M., 2016. "Non isolated high gain DC-DC converter topologies for PV applications – A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 66(C), pages 920-933.
    3. Márcio Rodrigo Santos de Carvalho & Fabrício Bradaschia & Leonardo Rodrigues Limongi & Gustavo Medeiros de Souza Azevedo, 2019. "Modeling and Control Design of the Symmetrical Interleaved Coupled-Inductor-Based Boost DC-DC Converter with Clamp Circuits," Energies, MDPI, vol. 12(18), pages 1-21, September.
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    Cited by:

    1. 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.
    2. Jose Solis-Rodriguez & Julio C. Rosas-Caro & Avelina Alejo-Reyes & Jesus E. Valdez-Resendiz, 2023. "Optimal Selection of Capacitors for a Low Energy Storage Quadratic Boost Converter (LES-QBC)," Energies, MDPI, vol. 16(6), pages 1-17, March.

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