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. The control method comprises the following steps that correcting is carried out according to a first actual temperature drop amplitude of an inner coil pipe to obtain a first correction temperature; when the first correction temperature is smaller than a first preset temperature, the compressor is controlled to operate at the first frequency increasing speed in a frequency increasing mode; and when the first correction temperature' is larger than or equal to the first preset temperature and the first temperature difference is larger than or equal to the first set temperature difference, the compressor is controlled to operate at the second frequency increasing speed in a frequency increasing mode. In the frequency-increasing operation stage of the compressor, the temperature increasing amount within the set detection interval duration serves as a switching parameter of rapid frequency-increasing operation and slow frequency-increasing operation, the lag degree between the temperature of the inner coil pipe and frequency increasing of the compressor is reduced, and the phenomenon that the compressor is shut down due to the fact that the frequency of the compressor is increased too fast is avoided; and on the basis, the actual temperature of the inner coil pipe can be subjected to amplitude reduction correction, and the stability of the compressor is improved. The invention further discloses a control device and an 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 existing compressor frequency up control mechanism is inflexible and cannot be adjusted according to the actual situation in the control process. Up-frequency control can easily cause the compressor frequency to be too high to match the system load, resulting in technical problems of shutdown

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