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A Fast Converter Synchronization Speed Method Based on the Frequency Difference on Both Sides of the Grid Connection Point

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  • Jiangang Lu

    (Guangdong Power Grid Co., Ltd., China Southern Power Grid Co., Ltd., Guangzhou 510050, China)

  • Haobin Li

    (Guangdong Power Grid Co., Ltd., China Southern Power Grid Co., Ltd., Guangzhou 510050, China)

  • Feng Liao

    (Guangdong Power Grid Co., Ltd., China Southern Power Grid Co., Ltd., Guangzhou 510050, China)

  • Yuhui Huang

    (Guangdong Power Grid Co., Ltd., China Southern Power Grid Co., Ltd., Guangzhou 510050, China)

  • Xialin Li

    (School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China)

Abstract

The challenge of achieving a reliable and safe synchronization process for microgrids under weak communication conditions is a significant issue in distributed grid-connected energy storage. This is also the core motivation of this study. First, the concept of weak communication is introduced, and weak communication conditions are simulated by limiting the number of communications. Additionally, a fast synchronization method based on the frequency difference at the grid connection point is proposed, which allows for the rapid synchronization of converters under weak communication conditions. This method also includes an analysis of the range for key parameters, providing practical and feasible guidance for its real-world application. Finally, the validity of the theory is verified through PSCAD/EMTDC simulations and physical experiments.

Suggested Citation

  • Jiangang Lu & Haobin Li & Feng Liao & Yuhui Huang & Xialin Li, 2024. "A Fast Converter Synchronization Speed Method Based on the Frequency Difference on Both Sides of the Grid Connection Point," Energies, MDPI, vol. 17(22), pages 1-15, November.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:22:p:5639-:d:1518594
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    References listed on IDEAS

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    1. Shair, Jan & Li, Haozhi & Hu, Jiabing & Xie, Xiaorong, 2021. "Power system stability issues, classifications and research prospects in the context of high-penetration of renewables and power electronics," Renewable and Sustainable Energy Reviews, Elsevier, vol. 145(C).
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