Electric vehicle charging pile with fault power grid supporting and emergency power supply functions

The invention relates to an electric vehicle charging pile with fault power grid supporting and emergency power supply functions. The processor of the electric vehicle charging pile is used for realizing the following steps: in response to a detected power grid fault, determining a current reference value of a converter of the electric vehicle charging pile based on a current vector angle; and performing fault current distribution based on the current reference value by adopting a following network type control strategy. The electric vehicle charging pile can automatically adjust the control strategy and the output current when the power grid breaks down, and the fault power grid voltage supporting capacity of the electric vehicle charging pile is enhanced. 本申请涉及一种具备故障电网支撑与应急供电功能的电动汽车充电桩。所述电动汽车充电桩的处理器用于实现以下步骤：响应于检测到电网故障，基于电流矢量角度，确定出电动汽车充电桩的变流器的电流参考值；采用跟网型控制策略，基于电流参考值进行故障电流分配。采用本申请的电动汽车充电桩能够在电网故障时，自动调整控制策略和输出电流，增强电动汽车充电桩故障电网电压支撑能力。