Electronic expansion valve control method and control device, air conditioner, computer readable storage medium

Abstract

The embodiment of the invention discloses a method for controlling an electronic expansion valve, which belongs to the technical field of air conditioner control. The method includes: determining the target discharge temperature according to the outdoor ambient temperature; and controlling the valve opening of the electronic expansion valve according to the difference between the current discharge temperature and the target discharge temperature. By adopting the above-mentioned embodiments, the traversal time of the valve adjustment process of the electronic expansion valve can be shortened, and the valve opening corresponding to the target exhaust gas temperature can be quickly reached. The embodiment of the invention also discloses an electronic expansion valve control device, an air conditioner, and a computer-readable storage medium.

Description

technical field [0001] The invention relates to the technical field of air conditioner control, in particular to an electronic expansion valve control method and control device, an air conditioner, and a computer-readable storage medium. Background technique [0002] For the control of the electronic expansion valve in the low-temperature refrigeration state, the existing control method of the air conditioner adopts the method of increasing or decreasing the fixed opening according to the fixed time when looking for the optimal target exhaust temperature, that is, successively accumulating or successively decreasing Fixed opening. This control method is easy to operate, but when the difference between the current valve opening and the optimal valve opening is relatively large, it takes a long time to traverse, and the number of times of successive accumulation or successive decrement is large, which cannot meet the requirement of quickly reaching the target exhaust gas tempe...

AI Technical Summary

Problems solved by technology

This control method is simple to operate, but when the difference between the current valve opening and the optimal valve opening is relatively large, it takes a long time to traverse, and the number of times of successive accumulation or successive decrement is large, which cannot meet the target exhaust temperature quickly. needs

[0003] For example, when the electronic expansion valve adjusts the valve at a slow speed, assuming that the minimum opening of the electronic expansion valve is 70pls pulse angle, the maximum opening is 500pls pulse angle, and the current opening is 200pls pulse angle, the actual optimal opening (reaching the target discharge The valve opening at air temperature) is 400pls pulse angle, then it takes time to close the valve at the speed of 1 pulse angle every 30 seconds (400-200)*30=6000 seconds

With the existing control method, the response time of the valve action is too long

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