Method for inhibiting rotation speed fluctuation of air conditioner compressor

Abstract

The invention discloses a method for inhibiting rotation speed fluctuation of an air conditioner compressor, comprising a process of controlling a compressor according to real-time angular velocity and moment; the process of controlling the compressor according to the real-time angular velocity comprises the following steps of: conducting filtering treatment to an axial error to obtain axial errorcompensation; obtaining the output angular velocity of a phase-locked loop regulator according to the axial error compensation; correcting the real-time angular velocity by using the output angular velocity and controlling the compressor; the process of controlling the compressor according to the moment the following steps of: calculating a difference between a target angular velocity fluctuationamount and an output angular velocity of the phase-locked loop regulator to obtain a first angular velocity difference value, and inputting the first angular velocity difference value to the speed loop regulator to obtain an output moment; and obtaining the moment compensation according to the first angular velocity difference value; and controlling the compensed output moment according to the moment compensation and the output moment and controlling the compressor. The application of the invention can improve the effectiveness of inhibiting the rotation speed fluctuation of the compressor.

Description

technical field [0001] The invention belongs to the technical field of motor control, specifically relates to compressor control technology, and more specifically relates to a method for suppressing the fluctuation of the rotational speed of an air conditioner compressor. Background technique [0002] When the compressor used in the air conditioner is running, it is affected by the working principle and control technology of the air conditioner as a load, which makes the load torque of the compressor extremely unstable, easily causing large speed fluctuations, and the compressor is not running smoothly. The unstable operation of the compressor will lead to unstable operation of the entire air conditioner system, causing various adverse effects. Moreover, the unstable operation will also generate relatively large operating noise, which cannot meet the requirements of relevant noise standards and affect the comfort of the air conditioner. This phenomenon is especially serious...

AI Technical Summary

Problems solved by technology

[0003] Although there are methods for controlling the speed of the compressor in the prior art, the effect of suppressing the fluctuation of the speed is not ideal, and the problem of the fluctuation of the speed of the compressor cannot be fundamentally solved.

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