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A Virtual Inertia-Based Power Feedforward Control Strategy for an Energy Router in a Direct Current Microgrid Application

Author

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  • Yuyang Li

    (College of Information Science and Engineering, Northeastern University, Shenyang 110004, China)

  • Qiuye Sun

    (College of Information Science and Engineering, Northeastern University, Shenyang 110004, China
    State Key Laboratory of Synthetical Automation for Process Industries (Northeastern University), Shenyang 110004, China)

  • Danlu Wang

    (College of Information Science and Engineering, Northeastern University, Shenyang 110004, China)

  • Sen Lin

    (College of Information Science and Engineering, Northeastern University, Shenyang 110004, China)

Abstract

Due to the uncertainty of the power load and the randomness of distributed generations, low-voltage direct current (LVDC) bus voltage fluctuation will greatly affect the safety of an energy router-enabled direct current (DC) microgrid. In this paper, a power feedforward control strategy based on a dual active bridge (DAB) DC/DC converter in an energy router-based DC Microgrid is proposed. Based on this strategy, the LVDC bus voltage is controlled by virtual inertia control of the DC microgrid, instead of by the DAB converter. Thus, two benefits of the proposed strategy can be achieved: the power feedforward control can be realized, to mitigate the voltage fluctuation range of the LVDC bus; and the modulation algorithm in the DAB converter can be simplified. Experimental results verify the correctness and effectiveness of the proposed control method.

Suggested Citation

  • Yuyang Li & Qiuye Sun & Danlu Wang & Sen Lin, 2019. "A Virtual Inertia-Based Power Feedforward Control Strategy for an Energy Router in a Direct Current Microgrid Application," Energies, MDPI, vol. 12(3), pages 1-14, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:3:p:517-:d:203947
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    References listed on IDEAS

    as
    1. Rui Wang & Qiuye Sun & Qifu Cheng & Dazhong Ma, 2018. "The Stability Analysis of a Multi-Port Single-Phase Solid-State Transformer in the Electromagnetic Timescale," Energies, MDPI, vol. 11(9), pages 1-22, August.
    2. Welbert A. Rodrigues & Thiago R. Oliveira & Lenin M. F. Morais & Arthur H. R. Rosa, 2018. "Voltage and Power Balance Strategy without Communication for a Modular Solid State Transformer Based on Adaptive Droop Control," Energies, MDPI, vol. 11(7), pages 1-20, July.
    3. Yuan-Chih Chang & Hao-Chin Chang & Chien-Yu Huang, 2018. "Design and Implementation of the Battery Energy Storage System in DC Micro-Grid Systems," Energies, MDPI, vol. 11(6), pages 1-8, June.
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