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With the continuous improvement of the popularity of electric vehicles (EV), EV are increasing day by day, and their charge-discharge behavior brings great challenges to the current power grid. This paper proposes a new power control strategy for EV chargers. This strategy is based on virtual synchronous machine (VSM) control technology. Through this strategy, the grid-side converter of the EV charger can simulate the operating characteristics of the active frequency regulation and reactive voltage regulation of the synchronous machine. At the same time, this paper develops a platform model using MATLAB/Simulink, and simulates and verifies its performance. When multiple EV are connected, the operating power of the EV charger can be allocated according to the condition of the battery. It can still operate when there is a frequency deviation in the system, improving battery life, safety, and system stability.

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Power Control Strategy for an Electric Vehicle Charger Based on Virtual Synchronous Machine

  • 会议论文

  • 发表日期：

    2025年

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  • Junbin Chen,
  • Xiaomei Wu,
  • Hao Huang,
  • Huaijia Zhang,
  • Haiyu Huang,
  • Zhuoli Zhao,
  • Xianjiong Wu,
  • Songhui Lin

摘要

With the continuous improvement of the popularity of electric vehicles (EV), EV are increasing day by day, and their charge-discharge behavior brings great challenges to the current power grid. This paper proposes a new power control strategy for EV chargers. This strategy is based on virtual synchronous machine (VSM) control technology. Through this strategy, the grid-side converter of the EV charger can simulate the operating characteristics of the active frequency regulation and reactive voltage regulation of the synchronous machine. At the same time, this paper develops a platform model using MATLAB/Simulink, and simulates and verifies its performance. When multiple EV are connected, the operating power of the EV charger can be allocated according to the condition of the battery. It can still operate when there is a frequency deviation in the system, improving battery life, safety, and system stability.