Method, device and apparatus for quickly achieving target capacity of unit, and medium

Abstract

The invention provides a method for quickly achieving the target capacity of a unit. The method comprises obtaining a current compressor frequency value corresponding to a current water temperature difference from a temperature difference corresponding frequency table in real time; obtaining a refrigeration compressor frequency correction coefficient value corresponding to the current outdoor ambient temperature according to a refrigeration correction coefficient table during refrigeration; obtaining a target refrigeration compressor frequency value according to a preset refrigerating capacity, a current refrigerating capacity, the current compressor frequency value, and the refrigeration compressor frequency correction coefficient value; obtaining a heating compressor frequency correctioncoefficient value corresponding to the current outdoor ambient temperature according to a heating correction coefficient table; and obtaining a target heating compressor frequency value according toa preset heating capacity, a current heating capacity, the current compressor frequency value, and the heating compressor frequency correction coefficient value. The method can quickly achieve the target capacity of the unit, enables the compressor to quickly achieve the target refrigerating capacity or heating capacity set by the user, thereby avoiding the water temperature fluctuation in use.

Description

technical field

[0001] The invention relates to the technical field of heat pump control, in particular to a method, device, equipment and medium for quickly reaching the target capacity of a unit. Background technique

[0002] At present, in the cooling and heating mode of the inverter heat pump air conditioner, when the outdoor ambient temperature reaches or approaches the set temperature, due to the reduction of the heat exchange load, and in order to maintain the stability of the outdoor ambient temperature, the maximum operation of the compressor is generally limited in control. The frequency makes the compressor change from high-frequency operation to low-frequency operation, so that the inverter heat pump air conditioner can also achieve energy-saving effects under the condition of meeting the set temperature.

[0003] Usually, in the frequency conversion heat pump system, after the user sets the required target temperature, the compressor frequency of the unit is gra...

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