Control method and device for air conditioner compressor and air conditioner

Abstract

The invention relates to the technical field of intelligent air conditioners, and discloses a control method for an air conditioner compressor, which comprises the following steps: correcting according to a first actual temperature drop amplitude of an inner coil pipe to obtain a first corrected temperature; Under the condition that the first correction temperature is smaller than the first preset temperature, the compressor is controlled to operate at the first frequency increasing speed in a frequency increasing mode; The limiting frequency of a compressor corresponding to the current indoor environment temperature is determined; And under the condition that the first correction temperature is smaller than the first preset temperature and the current operation frequency of the compressor reaches the limiting frequency, the compressor is controlled to operate at the limiting frequency at a fixed frequency. The indoor environment temperature is introduced, amplitude reduction correction is conducted on the actual temperature of the inner coil pipe, the limiting frequency serves as the operation frequency of the fixed-frequency operation stage, the problem that the compressor frequency is too high due to hysteresis of temperature change of the inner coil pipe is effectively solved, the stability of the compressor is improved, air conditioner outlet air temperature fluctuation is avoided, and the service life of the air conditioner is prolonged. And user experience is improved. The invention further discloses a control device and the air conditioner.

Description

technical field [0001] The present application relates to the technical field of intelligent air conditioners, for example, to a control method and device for an air conditioner compressor, and an air conditioner. Background technique [0002] At present, during the heating operation of the air conditioner, for example, normal heating mode, high-temperature self-cleaning mode, switching from defrosting to heating operation mode, etc., it is necessary to increase the frequency of the compressor to increase the outlet air temperature to reach the target temperature, for example, 56°C or higher in high temperature self-cleaning mode. At present, the boost control for the frequency of the compressor generally includes an up-frequency operation phase, a constant frequency operation phase and a down-frequency operation phase, so as to ensure that the compressor frequency matches the load of the refrigeration cycle system. [0003] In actual operation, since the change of the coil...

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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 increase in coil temperature lags behind the increase in The frequency of the compressor is too high and the system load does not match, and there is a technical problem of crash

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