Control method suitable for maximum active power output during low voltage ride through period of double-fed wind power plant

The invention relates to a control method suitable for maximum active power output during low-voltage ride-through of a double-fed wind power plant. The control method comprises the following steps: S1, determining an injection requirement on reactive current during low-voltage ride-through of the wind power plant; s2, determining a reactive current output mode according to whether the wind power plant is provided with a reactive compensation device; s3, optimizing a reference value of the d-axis current irdLVRT of the rotor side converter; and S4, optimizing the reference value of the d-axis current igdLVRT of the grid-side converter. According to the reactive current distribution strategy provided by the invention, whether the current wind power plant is equipped with a reactive compensation device is comprehensively considered, so that the double-fed wind power plant has the capability of outputting more active power on the basis of meeting the national standard GB/T19963.1-2021 reactive current support, t