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Variable DC-Link Voltage Control of Dual Active Bridge Converter in a Standalone Wind Power Generation System for High-Efficiency Battery-Discharging Operation

Author

Listed:
  • Yuto Takayama

    (Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan
    These authors contributed equally to this work.)

  • Hiroaki Yamada

    (Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan
    These authors contributed equally to this work.)

Abstract

In this study, we deal with a dual active bridge (DAB) converter-based battery charger in a standalone wind power generation system (WPGS) with a small-scale wind turbine. However, the power conversion efficiency under the low power output in the discharging mode is low. In this paper, we propose variable DC-link voltage control in a standalone WPGS with a DAB converter under a light load. The proposed control can compensate for the shortage of generated power and suppress the peak value of the transformer current. Simulation results demonstrate that the proposed control can decrease the peak value of the transformer current and improve the power conversion efficiency of the DAB converter. An experimental setup was constructed to confirm the basic operation of the variable DC-link voltage control. In addition, a reference DC-link voltage switchover control is proposed to enable a high-efficiency drive under all load ranges. From simulation results, the power loss can be reduced by the switchover control of the reference DC-link voltage.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:20:p:6786-:d:658735
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    References listed on IDEAS

    as
    1. Hedayat Saboori & Shahram Jadid & Mehdi Savaghebi, 2021. "Spatio-Temporal and Power–Energy Scheduling of Mobile Battery Storage for Mitigating Wind and Solar Energy Curtailment in Distribution Networks," Energies, MDPI, vol. 14(16), pages 1-19, August.
    2. Duc Nguyen Huu, 2021. "A Novel Adaptive Control Approach Based on Available Headroom of the VSC-HVDC for Enhancement of the AC Voltage Stability," Energies, MDPI, vol. 14(11), pages 1-30, May.
    3. Michal Gierczynski & Lech M. Grzesiak & Arkadiusz Kaszewski, 2021. "A Dual Rising Edge Shift Algorithm for Eliminating the Transient DC-Bias Current in Transformer for a Dual Active Bridge Converter," Energies, MDPI, vol. 14(14), pages 1-22, July.
    4. 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.
    5. Sergio Toledo & Edgar Maqueda & Marco Rivera & Raúl Gregor & Pat Wheeler & Carlos Romero, 2020. "Improved Predictive Control in Multi-Modular Matrix Converter for Six-Phase Generation Systems," Energies, MDPI, vol. 13(10), pages 1-13, May.
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