High-power wind turbine generator control method based on domestic PLC

A high-power wind turbine generator control method based on a domestic PLC comprises the steps that S1, a central data processor reads a unit operation historical file from a unit database, and the unit operation historical file comprises historical fault data of a unit and ten-minute operation data of the unit; s2, splitting and cleaning the unit operation history file, and rejecting data during shutdown; s3, counting occurrence frequencies and occurrence moments of overspeed and paddle blockage of each unit from historical fault data of the units; s4, querying the operation data of the unit before and after the corresponding moment from the ten-minute operation data of the unit according to the counted generation moments of overspeed and paddle blockage of the unit, and performing variable analysis on the operation data; and S5, the central data processor transmits the key variable and the variable operation threshold value of each unit to a domestic PLC of the unit, and the domestic PLC performs switching