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To address the low utilization problem of the dc-side voltage for the traditional virtual synchronous generator (VSG), this paper proposes a high-gain VSG based on a three-phase Buck-H bridge inverter, which can greatly reduce the dc-side voltage of the inverter with the same ac-side voltage. In addition, the proposed high-gain VSG inherits the low-switching loss advantage of the three-phase Buck-H bridge inverter and retains the inertia performance of the active and reactive power control. Finally, the simulation of the high-gain VSG based on the three-phase Buck-H bridge is built based on MATLAB/Simulink, and the effectiveness and feasibility of the proposed high-gain VSG are verified.

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High-Gain Virtual Synchronous Generator Based on a Three-Phase Buck-H Bridge

  • 会议论文

  • 发表日期：

    2025年

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  • Gaoxiang Li,
  • Guofu Tang,
  • Jining Chen,
  • Yang Shao,
  • Pingping Gong,
  • Xiao Liu,
  • Ziguang Lu

摘要

To address the low utilization problem of the dc-side voltage for the traditional virtual synchronous generator (VSG), this paper proposes a high-gain VSG based on a three-phase Buck-H bridge inverter, which can greatly reduce the dc-side voltage of the inverter with the same ac-side voltage. In addition, the proposed high-gain VSG inherits the low-switching loss advantage of the three-phase Buck-H bridge inverter and retains the inertia performance of the active and reactive power control. Finally, the simulation of the high-gain VSG based on the three-phase Buck-H bridge is built based on MATLAB/Simulink, and the effectiveness and feasibility of the proposed high-gain VSG are verified.