Eccentricity correction method and device

The invention discloses an eccentricity correction method and device. The eccentricity correction method comprises the steps that a fitting curve of a preset weight value-current value corresponding to the weight value of a load in a barrel and a real-time monitoring current value are obtained; the current value obtained by real-time monitoring is compared with the current value in the fitting curve of the preset weight value-current value, and the rotor angle of the eccentricity to be corrected is analyzed; and when the rotor rotates to the rotor angle of the eccentricity to be corrected, the current value is increased gradually until a preset current compensation stopping condition is met. According to the technical scheme, faults do not need to be reported, shutdown is not needed, a balance repair time sequence does not need to be added, and the technical effect of automatically adjusting overlarge eccentricity to normal eccentricity can be achieved. In addition, the stability of the rotor is improved, and