COMPRESSOR FLUX-WEAKENING CONTROL APPARATUS, AIR CONDITIONER, METHOD AND STORAGE MEDIUM

The present disclosure relates to the field of compressor control, and discloses a device for field weakening control of a compressor. The device includes a main circuit unit and the compressor, wherein the main circuit unit provides power for the compressor, and the device further includes: a compressor rotational speed obtaining unit; and a control unit used to compare the rotational speed ω of the compressor with a rotational speed threshold ω1 of the compressor, and control the main circuit unit as follows according to comparison results: when the rotational speed ω of the compressor is less than ω1, an output voltage of the main circuit unit is controlled at a fixed value V0; and when the rotational speed ω of the compressor is greater than or equal to ω1, the compressor is controlled not to enter the field weakening control temporarily and the output voltage of the main circuit unit is controlled to rise, and the compressor is controlled to enter the field weakening control when the output voltage of the main circuit unit cannot continue to rise. In this way, the time for the compressor to enter the field weakening control can be delayed to the greatest extent, the compressor is controlled not to enter the field weakening control to the greatest extent, and the stability of the system is improved. The present disclosure further discloses a method for field weakening control of a compressor, a storage medium and an air conditioner.