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Adaptive Controller for Bus Voltage Regulation on a DC Microgrid Using a Sepic/Zeta Battery Charger/Discharger

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  • Jhoan Alejandro Montenegro-Oviedo

    (Escuela de Ingeniería Eléctrica y Electrónica, Universidad del Valle de Colombia, Cali 760042, Colombia)

  • Carlos Andres Ramos-Paja

    (Facultad de Minas, Universidad Nacional de Colombia, Medellin 050041, Colombia)

  • Martha Lucia Orozco-Gutierrez

    (Escuela de Ingeniería Eléctrica y Electrónica, Universidad del Valle de Colombia, Cali 760042, Colombia)

  • Edinson Franco-Mejía

    (Escuela de Ingeniería Eléctrica y Electrónica, Universidad del Valle de Colombia, Cali 760042, Colombia)

  • Sergio Ignacio Serna-Garcés

    (Departamento de Electrónica y Telecomunicaciones, Instituto Tecnológico Metropolitano, Medellin 050013, Colombia)

Abstract

In a DC microgrid that involves a battery storage system, the primary energy management is performed by a battery charger/discharger based on a dc/dc power converter. Moreover, the battery charger/discharger is also used to regulate the voltage of the dc bus. One of the challenges at the control level is to regulate the DC bus voltage under battery charge and discharge conditions but also under different relations between the battery and bus voltages. For this reason, this paper proposes a battery charger/discharger based on the Sepic/Zeta converter and an adaptive controller, which provides bidirectional current flow, stable bus voltage, and satisfactory electrical characteristics. The main advantage of the proposed control system is the capability to adapt the controller parameters to any operation condition, which provides a general solution to interface any battery to any bus voltage. This study is focused on the design procedure of both the power converter and the controller, where a detailed mathematical analysis is performed to ensure the system performance and stability. Finally, the proposed solution is validated using an experimental prototype and a practical application case.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:4:p:793-:d:1057684
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    References listed on IDEAS

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    1. A. Cavallo & G. Canciello & B. Guida, 2017. "Energy Storage System Control for Energy Management in Advanced Aeronautic Applications," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-9, April.
    2. Song, Ziyou & Hou, Jun & Hofmann, Heath & Li, Jianqiu & Ouyang, Minggao, 2017. "Sliding-mode and Lyapunov function-based control for battery/supercapacitor hybrid energy storage system used in electric vehicles," Energy, Elsevier, vol. 122(C), pages 601-612.
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    Cited by:

    1. 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.

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