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Fixed-Time Event-Triggered Consensus Power-Sharing Control for Hybrid AC/DC Microgrid Parallel Bi-Directional Interconnect Converters

Author

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  • Junjie Wu

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Siyu Lyu

    (China Huaneng Group Co., Ltd., Beijing 100031, China
    Huaneng Nuclear Power Development Co., Ltd., Beijing 100036, China)

  • Benhua Qian

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Chuanyu Jiang

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Ziqaing Song

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Jun Xiao

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

Abstract

Although power sharing in hybrid AC/DC microgrids (HMGs) has been widely researched, traditional power-sharing control is based on an infinite time consensus method, and the communication bandwidth is large. Therefore, this paper proposes a power-sharing strategy for HMG parallel bi-directional interconnected converters (BICs) considering fixed-time stabilization and event-triggered control. Firstly, every BIC has a well-designed local control method to generate the corresponding power reference for the BIC, which provides the basis for further research. Secondly, a fixed-time-based power-sharing controller is designed in order to improve the convergence speed of power-sharing control for HMG parallel BICs. Finally, an event-triggered method is applied to reduce the system communication bandwidth and the frequency of controller updates. In this paper, we first transform the parallel BIC control problem into a multi-agent system (MAS) consensus problem. Furthermore, a fixed time based on an event trigger consensus method is proposed at the secondary control level. The energy flow between the two subgrids can be shared according to the rated power of each BIC. Finally, the effectiveness of the proposed fixed-time event-triggered power-sharing control is verified through simulation and experiments.

Suggested Citation

  • Junjie Wu & Siyu Lyu & Benhua Qian & Chuanyu Jiang & Ziqaing Song & Jun Xiao, 2025. "Fixed-Time Event-Triggered Consensus Power-Sharing Control for Hybrid AC/DC Microgrid Parallel Bi-Directional Interconnect Converters," Mathematics, MDPI, vol. 13(9), pages 1-19, May.
  • Handle: RePEc:gam:jmathe:v:13:y:2025:i:9:p:1534-:d:1650623
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    References listed on IDEAS

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    1. Zongyu Zuo & Lin Tie, 2016. "Distributed robust finite-time nonlinear consensus protocols for multi-agent systems," International Journal of Systems Science, Taylor & Francis Journals, vol. 47(6), pages 1366-1375, April.
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