Although the deployment of alternating current (AC) -busbar plug-in electric vehicle (PEV) charging station with photovoltaic (PV) is a promising alternative, the interaction among subsystems always causes the instability problem. Meanwhile, the conventional generalized Nyquist criterion (GNC) is complex, and it is not suitable for the design of the AC system. Therefore, this paper proposes a modified infinity-one-norm (MION) stability criterion based on the impedance method to assess the stability of the foresaid charging station. Firstly, the typical structure and operation modes of the charging station are studied. Furthermore, each subsystem impedance matrix is built by small-signal method, and the MION stability criterion based on impedance method is proposed to assess the charging station stability. Compared with the previous simplified stability criteria based on the norm, the proposed criterion has lower conservatism. Furthermore, the design regulation for the controller parameters is provided, and the stability recovery way is provided by connecting the doubly-fed line and energy storage equipment, which are selected based on intermediate variable, i.e., short-circuit ratio (SCR). Finally, the effectiveness and conservatism of the proposed stability criterion are validated through simulation and experimental results.

中文翻译：

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光伏交流母线插电式电动汽车充电站的稳态稳定性评估

尽管使用光伏（PV）部署交流电（AC）-母线插入式电动汽车（PEV）充电站是一种有前途的替代方案，但子系统之间的相互作用始终会导致不稳定问题。同时，常规的广义奈奎斯特准则（GNC）很复杂，并且不适合用于AC系统的设计。因此，本文提出了一种基于阻抗法的改进的无限一范数（MION）稳定性准则，以评估上述充电站的稳定性。首先，研究了充电站的典型结构和工作方式。此外，通过小信号方法建立每个子系统的阻抗矩阵，并提出基于阻抗方法的MION稳定性判据，以评估充电站的稳定性。与以前的基于规范的简化稳定性准则相比，该准则具有较低的保守性。此外，提供了控制器参数的设计规则，并通过连接双馈线和储能设备（提供了基于中间变量即短路率（SCR）的双馈线）来提供稳定性恢复方法。最后，通过仿真和实验结果验证了所提出的稳定性判据的有效性和保守性。短路比（SCR）。最后，通过仿真和实验结果验证了所提出的稳定性判据的有效性和保守性。短路比（SCR）。最后，通过仿真和实验结果验证了所提出的稳定性判据的有效性和保守性。