Backup power supply control device, system, wind generating set and method

The invention relates to the technical field of wind driven generators, in particular to a back-up power source control device and system and a wind driven generator set and method. The device comprises a cabin vibration detection unit used for monitoring the vibration condition of a cabin of the wind driven generator and sending a first vibration signal obtained through monitoring to a back-up power supply start-stop control unit; the back-up power supply start-stop control unit is used for acquiring the first vibration signal, determining the vibration state of blades on the wind driven generator according to the first vibration signal, and sending a start command to the back-up power supply when the vibration state is abnormal vibration; the back-up power source start-stop control unit is further used for obtaining the comprehensive vibration information, determining the vibration suppression result of the wind driven generator according to the comprehensive vibration information and sending a shutdown com