Method and system for optimizing low-voltage ride-through control of wind turbine generator

The invention discloses a method and system for optimizing low-voltage ride-through control of a wind turbine generator, and belongs to the technical field of power system operation and control. The method comprises the steps: according to the initial operation condition of a wind turbine generator of an electric power system, calculating a transient overvoltage generated when the wind turbine generator breaks down in an alternating-current and direct-current mode; determining the influence of the adjustable factor on the transient overvoltage in the low-voltage ride through process of the fanset, and obtaining a key influence factor; according to the key influence factors, performing optimization control on the low-voltage ride-through process of the wind turbine generator. By analyzingactive and reactive output characteristics of the wind turbine generator during low voltage ride through and in the recovery process, the influence mechanism of low voltage ride through of the wind turbine generator on the tra