Air conditioner control method and air conditioner control device

Abstract

The invention discloses an air conditioner control method, which comprises the following steps that the indoor temperature is detected; a difference value between the indoor temperature and the temperature set by a user is calculated according to the indoor temperature and the temperature set by the user; the initial operation frequency increment of an air conditioner compressor is calculated according to the difference value and a fuzzy control rule, and the initial operation frequency is calculated according to the initial operation frequency increment for controlling the compressor to operate at the initial operation frequency; the operation time of the compressor is detected; when the operation time is greater than the preset time, and if the absolute value of the difference value is smaller than or equal to a preset threshold value, the operation frequency modification value is calculated according to the difference value and a PID (proportion integration differentiation) control model, and in addition, the operation frequency modification value is overlapped onto the initial operation frequency for controlling the compressor to operate at the modified operation frequency. Therefore the operation frequency of the compressor can realize fast response to the load change, the fast refrigeration and heating can be realized, meanwhile, the temperature can be precisely controlled, and the energy sources can be effectively saved. The invention also discloses an air conditioner control device.

Description

technical field [0001] The invention relates to the technical field of electrical appliances, in particular to an air conditioner control method and an air conditioner control device. Background technique [0002] The inverter air conditioner can automatically adjust the operating frequency of the compressor with the change of the air conditioner load, that is, it can change the speed of the compressor to adapt to the change of the load, thereby reducing power consumption and loss. Therefore, with the improvement of people's awareness of energy saving, inverter air conditioners have been used more and more. [0003] The frequency conversion air conditioner of the related art usually adopts the following two methods to control the frequency: one is to automatically control the frequency according to the indoor and outdoor environment and the temperature set by the user and according to the preset program, but the user cannot set the frequency to run mode and parameters; the ...

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Problems solved by technology

[0003] The frequency conversion air conditioner of the related art usually adopts the following two methods to control the frequency: one is to automatically control the frequency according to the indoor and outdoor environment and the temperature set by the user and according to the preset program, but the user cannot set the frequency to run mode and parameters; the second is: according to the indoor and outdoor environment and the temperature set by the user, the frequency is automatically controlled according to the preset program, and the user can also set the frequency operation mode and parameters

[0004] However, the control method of the frequency conversion air conditioner in the related art has the following defects: due to the inaccurate prediction of the load of the specific environment in which the air conditioner is applied, the frequency is often too high or too small, which results in large power consumption, high noise, and poor heating and cooling. In addition, because the inverter air conditioner is in operation, the load is constantly changing, and the control method of the related technology cannot quickly respond to the change of the load, or it only operates according to a fixed frequency, which seriously affects The energy-saving effect of air-conditioning and the comfort brought by air-conditioning

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