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A New Double-Switch SEPIC-Buck Topology for Renewable Energy Applications

Author

Listed:
  • Walid Emar

    (Energy Engineering Department, Engineering Technology Faculty, Zarqa University, Zarqa 13110, Jordan)

  • Haitham Issa

    (Energy Engineering Department, Engineering Technology Faculty, Zarqa University, Zarqa 13110, Jordan)

  • Hasan Kanaker

    (Cyber Security Department, Information Technology Faculty, Isra University, Amman 11622, Jordan)

  • Osama Fares

    (Electrical (Communications and Electronics) Engineering Department, Engineering Faculty, Isra University, Amman 11622, Jordan)

  • Hani Attar

    (Energy Engineering Department, Engineering Technology Faculty, Zarqa University, Zarqa 13110, Jordan)

Abstract

In addition to their conventional use in electric motor drives, DC-DC converters have a variety of other uses, such as energy storage, energy conversion, cyber security systems, uninterruptible power supplies, and renewable energy systems. An innovative DC-DC converter is suggested in this article. Designing a new, high-gain DC-DC converter scheme known as a double-switch SEPIC-buck converter (DSSB) is possible after making some adjustments to the SEPIC converter that is currently known in accordance with accepted techniques. The output voltage magnitude of the proposed converter is either larger than or less than the input voltage magnitude and is the same sign as the input voltage. According to the theoretical and analytical study that has been supported by the real-world application, high voltage gain, low switching stress, and low inductor current ripple are the main characteristics of the proposed DSSB converter. The related small-signal model was also used to build the closed-loop system. The frequency response and output voltage behavior were investigated when the input source voltage abruptly changed as a step function. Based on the comparison study with other DC-DC converters, the DSSB converter outperforms currently known DC-DC converters such as Buck, SEPIC, Boost, Buck-Boost, and other SEPIC converter topologies in terms of voltage gain, harmonic content, normalized current ripple, dynamic performance, and efficiency. Additionally, the frequency response and control of the proposed converter using an alternate current (AC), small-signal, analysis-based, current-mode control technique are both provided. Thus, the DSSB is regarded as safe in overcurrent situations because of the small-signal analysis with the current control strategy. As a result of the verification of the proposed control technique, the resistance to changes in the DSSB parameters, improved dynamic performance, and higher control accuracy are further advantages of current-mode control based on small-signal analysis over other control approaches (PI controllers). Finally, the experimental and simulation results from Simplorer 7 and MATLAB/Simulink are used to validate the findings of the analytical and comparative investigation.

Suggested Citation

  • Walid Emar & Haitham Issa & Hasan Kanaker & Osama Fares & Hani Attar, 2024. "A New Double-Switch SEPIC-Buck Topology for Renewable Energy Applications," Energies, MDPI, vol. 17(1), pages 1-27, January.
  • Handle: RePEc:gam:jeners:v:17:y:2024:i:1:p:238-:d:1312141
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    References listed on IDEAS

    as
    1. 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.
    2. Houssein Al Attar & Mohamed Assaad Hamida & Malek Ghanes & Miassa Taleb, 2023. "Review on Modeling and Control Strategies of DC–DC LLC Converters for Bidirectional Electric Vehicle Charger Applications," Energies, MDPI, vol. 16(9), pages 1-28, May.
    Full references (including those not matched with items on IDEAS)

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