Control method and device for air conditioner compressor and air conditioner

Abstract

This application relates to the field of intelligent control technology, and discloses a control method for air-conditioning compressors, including: obtaining the first corrected temperature according to the first actual temperature drop correction of the inner coil; when the first corrected temperature is greater than the first preset temperature , control the compressor to run at the first frequency reduction rate; obtain the second corrected temperature according to the second actual temperature drop correction of the inner coil; obtain the second temperature difference; when the second temperature difference is less than or equal to the first set temperature difference , to control the compressor to run at the second frequency reduction rate. In the stage of compressor frequency reduction operation, the temperature increase within the set detection interval is used as the switching parameter between fast frequency and slow frequency reduction to reduce the lag between the internal coil temperature and compressor frequency increase to avoid compression The frequency of the machine decreases too fast and the machine crashes. On this basis, it enables the actual temperature of the inner coil to be corrected by decreasing amplitude, and the stability of the compressor is improved. The application also discloses a control device and an air conditioner.

Description

Control method and device for air conditioner compressor and air conditioner technical field The application relates to the technical field of intelligent air conditioners, for example, to a kind of control method and device for air conditioner compressors and air conditioner. Background technique [0002] At present, during the heating operation of the air conditioner, for example, the normal heating mode, the high temperature self-cleaning mode, the defrosting to heating Operation mode, etc., it is necessary to increase the compressor frequency to increase the outlet air temperature to reach the target temperature, for example, high temperature self-cleaning 56°C or higher in mode. At present, the boosting control for the compressor frequency generally includes the boosting operation stage, the constant frequency running In order to ensure that the compressor frequency matches the load of the refrigeration cycle system. In actual operation, since the change of the...

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Problems solved by technology

[0006] The embodiments of the present disclosure provide a control method and device for an air conditioner compressor and an air conditioner to solve the problem that the temperature of the coil tube lags behind the decrease in the frequency of the compressor during the period of controlling the frequency reduction of the compressor. The frequency decreases too fast, resulting in the problem of compressor crash

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