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Comparative Study of Control Strategies for Stabilization and Performance Improvement of DC Microgrids with a CPL Connected

Author

Listed:
  • Isaías V. de Bessa

    (Department of Electricity, Federal University of Amazonas, Manaus-AM 69080-900, Brazil)

  • Renan L. P. de Medeiros

    (Department of Electricity, Federal University of Amazonas, Manaus-AM 69080-900, Brazil)

  • Iury Bessa

    (Department of Electricity, Federal University of Amazonas, Manaus-AM 69080-900, Brazil)

  • Florindo A. C. Ayres Junior

    (Department of Electricity, Federal University of Amazonas, Manaus-AM 69080-900, Brazil)

  • Alessandra R. de Menezes

    (Department of Electricity, Federal University of Amazonas, Manaus-AM 69080-900, Brazil)

  • Gustavo M. Torres

    (Department of Electricity, Federal University of Amazonas, Manaus-AM 69080-900, Brazil)

  • João Edgar Chaves Filho

    (Department of Electricity, Federal University of Amazonas, Manaus-AM 69080-900, Brazil)

Abstract

The DC microgrid system is composed by converters that operate like feeders and loads. Among these loads, we highlight the constant power loads (CPLs) that may cause instability in the microgrid, observed in the form of undesired oscillations due to its negative impedance behavior. Therefore, this work proposes to use performance indices and stability margins to evaluate state and output feedback control strategies for stabilization of DC microgrids. In particular, it is proposed to evaluate the stability margin of the proposed methodologies by means of the impedance relations in the microgrid based on the Middlebrook criterion. Our simulations and tests showed the relation between the performance and stability degradation and the microgrid impedances variation.

Suggested Citation

  • Isaías V. de Bessa & Renan L. P. de Medeiros & Iury Bessa & Florindo A. C. Ayres Junior & Alessandra R. de Menezes & Gustavo M. Torres & João Edgar Chaves Filho, 2020. "Comparative Study of Control Strategies for Stabilization and Performance Improvement of DC Microgrids with a CPL Connected," Energies, MDPI, vol. 13(10), pages 1-29, May.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:10:p:2663-:d:362828
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    References listed on IDEAS

    as
    1. Mohammed Kh. AL-Nussairi & Ramazan Bayindir & Sanjeevikumar Padmanaban & Lucian Mihet-Popa & Pierluigi Siano, 2017. "Constant Power Loads (CPL) with Microgrids: Problem Definition, Stability Analysis and Compensation Techniques," Energies, MDPI, vol. 10(10), pages 1-20, October.
    2. Abdelali El Aroudi & Blanca Areli Martínez-Treviño & Enric Vidal-Idiarte & Angel Cid-Pastor, 2019. "Fixed Switching Frequency Digital Sliding-Mode Control of DC-DC Power Supplies Loaded by Constant Power Loads with Inrush Current Limitation Capability," Energies, MDPI, vol. 12(6), pages 1-27, March.
    3. Jorge Luis Anderson Azzano & Jerónimo J. Moré & Paul F. Puleston, 2019. "Stability Criteria for Input Filter Design in Converters with CPL: Applications in Sliding Mode Controlled Power Systems," Energies, MDPI, vol. 12(21), pages 1-19, October.
    4. Andrea Bonfiglio & Massimo Brignone & Marco Invernizzi & Alessandro Labella & Daniele Mestriner & Renato Procopio, 2017. "A Simplified Microgrid Model for the Validation of Islanded Control Logics," Energies, MDPI, vol. 10(8), pages 1-28, August.
    5. Eklas Hossain & Ron Perez & Sanjeevikumar Padmanaban & Lucian Mihet-Popa & Frede Blaabjerg & Vigna K. Ramachandaramurthy, 2017. "Sliding Mode Controller and Lyapunov Redesign Controller to Improve Microgrid Stability: A Comparative Analysis with CPL Power Variation," Energies, MDPI, vol. 10(12), pages 1-24, November.
    6. Singh, Suresh & Gautam, Aditya R. & Fulwani, Deepak, 2017. "Constant power loads and their effects in DC distributed power systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 72(C), pages 407-421.
    7. Martín-Antonio Rodríguez-Licea & Francisco-Javier Pérez-Pinal & Jose-Cruz Nuñez-Perez & Carlos-Alonso Herrera-Ramirez, 2018. "Nonlinear Robust Control for Low Voltage Direct-Current Residential Microgrids with Constant Power Loads," Energies, MDPI, vol. 11(5), pages 1-20, May.
    8. Haolan Liang & Zhangjie Liu & Hua Liu, 2019. "Stabilization Method Considering Disturbance Mitigation for DC Microgrids with Constant Power Loads," Energies, MDPI, vol. 12(5), pages 1-19, March.
    9. Xiaoling Su & Minxiao Han & Josep M. Guerrero & Hai Sun, 2015. "Microgrid Stability Controller Based on Adaptive Robust Total SMC," Energies, MDPI, vol. 8(3), pages 1-18, March.
    10. Ahmed Aldhaheri & Amir Etemadi, 2018. "Adaptive Stabilization and Dynamic Performance Preservation of Cascaded DC-DC Systems by Incorporating Low Pass Filters," Energies, MDPI, vol. 11(2), pages 1-19, February.
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