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Modeling and Nonlinear Control of dc–dc Converters for Microgrid Applications

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  • Jorge A. Solsona

    (Instituto de Investigaciones en Ingeniería Eléctrica (IIIE), Universidad Nacional del Sur (UNS)-CONICET and Dpto. Ing. Eléctrica y de Computadoras, UNS, Av. Alem 1253, Bahía Blanca 8000, Argentina)

  • Sebastian Gomez Jorge

    (Instituto de Investigaciones en Ingeniería Eléctrica (IIIE), Universidad Nacional del Sur (UNS)-CONICET and Dpto. Ing. Eléctrica y de Computadoras, UNS, Av. Alem 1253, Bahía Blanca 8000, Argentina)

  • Claudio A. Busada

    (Instituto de Investigaciones en Ingeniería Eléctrica (IIIE), Universidad Nacional del Sur (UNS)-CONICET and Dpto. Ing. Eléctrica y de Computadoras, UNS, Av. Alem 1253, Bahía Blanca 8000, Argentina)

Abstract

This paper proposes a high-performance control strategy for dc–dc converters supplying combined loads (constant current/power, and/or linear loads). This strategy combines a feedback law with a feedforward compensation. The feedback law is based on full feedback linearization, which guarantees that zero dynamics are avoided. To design a single controller for the three basic converter topologies (i.e., buck, boost and buck–boost), a unified model for these converters is introduced. From the resulting combined control law, the specific control law for each type of converter can be obtained by setting three constant coefficient to 0 or 1. The feedforward compensation is based on the estimated values of the load obtained via a nonlinear observer. The main advantage of this unified approach is that it is implemented by using a single algorithm which can be executed in a dedicated hardware, for instance, a single integrated circuit, providing a unified solution for the control of the mentioned topologies. The good performance of the proposed scheme is verified through simulations and tested via experimental application cases, concluding that this is a good unified solution to control dc–dc converters used in microgrid applications.

Suggested Citation

  • Jorge A. Solsona & Sebastian Gomez Jorge & Claudio A. Busada, 2022. "Modeling and Nonlinear Control of dc–dc Converters for Microgrid Applications," Sustainability, MDPI, vol. 14(24), pages 1-17, December.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:24:p:16889-:d:1005403
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    References listed on IDEAS

    as
    1. Sadaqat Ali & Zhixue Zheng & Michel Aillerie & Jean-Paul Sawicki & Marie-Cécile Péra & Daniel Hissel, 2021. "A Review of DC Microgrid Energy Management Systems Dedicated to Residential Applications," Energies, MDPI, vol. 14(14), pages 1-26, July.
    2. Koksal Erenturk & Azeddine Draou & Abdulrahman AlKassem, 2022. "Design and Comparison of Different Types of Synergetic Controllers for Islanded DC Microgrids," Sustainability, MDPI, vol. 14(14), pages 1-15, July.
    3. Ahmad Taher Azar & Azher M. Abed & Farah Ayad Abdulmajeed & Ibrahim A. Hameed & Nashwa Ahmad Kamal & Anwar Jaafar Mohamad Jawad & Ali Hashim Abbas & Zainab Abdulateef Rashed & Zahraa Sabah Hashim & Mo, 2022. "A New Nonlinear Controller for the Maximum Power Point Tracking of Photovoltaic Systems in Micro Grid Applications Based on Modified Anti-Disturbance Compensation," Sustainability, MDPI, vol. 14(17), pages 1-25, August.
    4. Muhammad Yasir Ali Khan & Haoming Liu & Salman Habib & Danish Khan & Xiaoling Yuan, 2022. "Design and Performance Evaluation of a Step-Up DC–DC Converter with Dual Loop Controllers for Two Stages Grid Connected PV Inverter," Sustainability, MDPI, vol. 14(2), pages 1-22, January.
    5. Katherine Cabana-Jiménez & John E. Candelo-Becerra & Vladimir Sousa Santos, 2022. "Comprehensive Analysis of Microgrids Configurations and Topologies," Sustainability, MDPI, vol. 14(3), pages 1-25, January.
    6. Muhammed Y. Worku, 2022. "Recent Advances in Energy Storage Systems for Renewable Source Grid Integration: A Comprehensive Review," Sustainability, MDPI, vol. 14(10), pages 1-18, May.
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    Cited by:

    1. Humam Al-Baidhani & Abdullah Sahib & Marian K. Kazimierczuk, 2023. "State Feedback with Integral Control Circuit Design of DC-DC Buck-Boost Converter," Mathematics, MDPI, vol. 11(9), pages 1-18, May.

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