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Bidirectional Power Sharing for DC Microgrid Enabled by Dual Active Bridge DC-DC Converter

Author

Listed:
  • Sara J. Ríos

    (Faculty of Electrical and Computer Engineering, ESPOL Polytechnic University, Campus Gustavo Galindo, Guayaquil 09-01-5863, Ecuador)

  • Daniel J. Pagano

    (Department of Automation and Systems, Federal University of Santa Catarina (UFSC), Florianópolis 88040-900, Brazil)

  • Kevin E. Lucas

    (Faculty of Electrical and Computer Engineering, ESPOL Polytechnic University, Campus Gustavo Galindo, Guayaquil 09-01-5863, Ecuador
    Department of Automation and Systems, Federal University of Santa Catarina (UFSC), Florianópolis 88040-900, Brazil)

Abstract

Currently, high-performance power conversion requirements are of increasing interest in microgrid applications. In fact, isolated bidirectional dc-dc converters are widely used in modern dc distribution systems. The dual active bridge (DAB) dc-dc converter is identified as one of the most promising converter topology for the mentioned applications, due to its benefits of high power density, electrical isolation, bidirectional power flow, zero-voltage switching, and symmetrical structure. This study presents a power management control scheme in order to ensure the power balance of a dc microgrid in stand-alone operation, where the renewable energy source (RES) and the battery energy storage (BES) unit are interfaced by DAB converters. The power management algorithm, as introduced in this work, selects the proper operation of the RES system and BES system, based on load/generation power and state-of-charge of the battery conditions. Moreover, a nonlinear robust control strategy is proposed when the DAB converters are in voltage-mode-control in order to enhance the dynamic performance and robustness of the common dc-bus voltage, in addition to overcoming the instability problems that are caused by constant power loads and the dynamic interactions of power electronic converters. The simulation platform is developed in MATLAB/Simulink, where a photovoltaic system and battery system are selected as the typical RES and BES, respectively. Assessments on the performance of the proposed control scheme are conducted. Comparisons with the other control method are also provided.

Suggested Citation

  • Sara J. Ríos & Daniel J. Pagano & Kevin E. Lucas, 2021. "Bidirectional Power Sharing for DC Microgrid Enabled by Dual Active Bridge DC-DC Converter," Energies, MDPI, vol. 14(2), pages 1-24, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:2:p:404-:d:479278
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    Citations

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    Cited by:

    1. Saif Jamal & Jagadeesh Pasupuleti & Nur Azzammudin Rahmat & Nadia M. L. Tan, 2022. "Energy Management System for Grid-Connected Nanogrid during COVID-19," Energies, MDPI, vol. 15(20), pages 1-20, October.
    2. Salvatore Musumeci, 2023. "Energy Conversion Using Electronic Power Converters: Technologies and Applications," Energies, MDPI, vol. 16(8), pages 1-9, April.
    3. Sakda Somkun & Toshiro Sato & Viboon Chunkag & Akekachai Pannawan & Pornnipa Nunocha & Tawat Suriwong, 2021. "Performance Comparison of Ferrite and Nanocrystalline Cores for Medium-Frequency Transformer of Dual Active Bridge DC-DC Converter," Energies, MDPI, vol. 14(9), pages 1-21, April.
    4. Bor-Ren Lin, 2021. "Implementation of a Resonant Converter with Topology Morphing to Achieve Bidirectional Power Flow," Energies, MDPI, vol. 14(16), pages 1-21, August.
    5. Muhammad Husnain Ashfaq & Zulfiqar Ali Memon & Muhammad Akmal Chaudhary & Muhammad Talha & Jeyraj Selvaraj & Nasrudin Abd Rahim & Muhammad Majid Hussain, 2022. "Robust Dynamic Control of Constant-Current-Source-Based Dual-Active-Bridge DC/DC Converter Used for Off-Board EV Charging," Energies, MDPI, vol. 15(23), pages 1-33, November.
    6. Basma Salah & Hany M. Hasanien & Fadia M. A. Ghali & Yasser M. Alsayed & Shady H. E. Abdel Aleem & Adel El-Shahat, 2022. "African Vulture Optimization-Based Optimal Control Strategy for Voltage Control of Islanded DC Microgrids," Sustainability, MDPI, vol. 14(19), pages 1-26, September.
    7. Yuto Takayama & Hiroaki Yamada, 2021. "Variable DC-Link Voltage Control of Dual Active Bridge Converter in a Standalone Wind Power Generation System for High-Efficiency Battery-Discharging Operation," Energies, MDPI, vol. 14(20), pages 1-17, October.
    8. Rupesh Jha & Mattia Forato & Satya Prakash & Hemant Dashora & Giuseppe Buja, 2022. "An Analysis-Supported Design of a Single Active Bridge (SAB) Converter," Energies, MDPI, vol. 15(2), pages 1-22, January.

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