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Robust Sliding-Mode Control Design of DC-DC Zeta Converter Operating in Buck and Boost Modes

Author

Listed:
  • Humam Al-Baidhani

    (Department of Electrical Engineering, Wright State University, Dayton, OH 45435, USA
    Department of Computer Techniques Engineering, Faculty of Information Technology, Imam Ja’afar Al-Sadiq University, Baghdad 10011, Iraq)

  • Fabio Corti

    (Department of Information Engineering, University of Florence, 50139 Firenze, Italy)

  • Alberto Reatti

    (Department of Information Engineering, University of Florence, 50139 Firenze, Italy)

  • Marian K. Kazimierczuk

    (Department of Electrical Engineering, Wright State University, Dayton, OH 45435, USA)

Abstract

This paper presents a new nonlinear control scheme for a pulse-width modulated dc-dc Zeta converter operating in buck and boost modes. The averaged model of the dc-dc power converter is derived, based on which a robust control law is developed using a simplified sliding-mode control technique. The existence and stability conditions are introduced to select proper controller gains that ensure fast output voltage convergence towards reference voltage. A detailed design procedure is provided to realize the control scheme using low-cost discrete components. The proposed control method handles large disturbances, accommodates the non-minimum phase property, and maintains regulated output voltage during step-up and step-down operation modes. The control system also maintains constant switching frequency, improves the transient response, and eliminates the steady-state error at the output voltage. A MATLAB/SIMULINK model is developed to simulate the closed-loop dc-dc Zeta converter in continuous conduction mode and investigate the tracking and regulation performance. The simulation results confirm the robustness and stability of the nonlinear controlled power converter under abrupt line and load variations.

Suggested Citation

  • Humam Al-Baidhani & Fabio Corti & Alberto Reatti & Marian K. Kazimierczuk, 2023. "Robust Sliding-Mode Control Design of DC-DC Zeta Converter Operating in Buck and Boost Modes," Mathematics, MDPI, vol. 11(17), pages 1-17, September.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:17:p:3791-:d:1232399
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    References listed on IDEAS

    as
    1. Jhoan Alejandro Montenegro-Oviedo & Carlos Andres Ramos-Paja & Martha Lucia Orozco-Gutierrez & Edinson Franco-Mejía & Sergio Ignacio Serna-Garcés, 2023. "Adaptive Controller for Bus Voltage Regulation on a DC Microgrid Using a Sepic/Zeta Battery Charger/Discharger," Mathematics, MDPI, vol. 11(4), pages 1-30, February.
    2. Ileana González & Antonio Sánchez-Squella & Diego Langarica-Cordoba & Fernando Yanine-Misleh & Victor Ramirez, 2021. "A PI + Sliding-Mode Controller Based on the Discontinuous Conduction Mode for an Unidirectional Buck–Boost Converter with Electric Vehicle Applications," Energies, MDPI, vol. 14(20), pages 1-15, October.
    3. Leonardo Comparatore & Magno Ayala & Yassine Kali & Jorge Rodas & Julio Pacher & Alfredo Renault & Raúl Gregor, 2023. "Discrete-Time Sliding Mode Current Control for a Seven-Level Cascade H-Bridge Converter," Energies, MDPI, vol. 16(5), pages 1-19, March.
    4. Bo-Yu Luo & Ramadhani Kurniawan Subroto & Chang-Zhi Wang & Kuo-Lung Lian, 2022. "An Improved Sliding Mode Control with Integral Surface for a Modular Multilevel Power Converter," Energies, MDPI, vol. 15(5), pages 1-18, February.
    Full references (including those not matched with items on IDEAS)

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