Air conditioner control method and device with electronic expansion valve opening adjustment function

Abstract

The invention discloses an air conditioner control method and device with an electronic expansion valve opening degree adjusting function. The method comprises the following steps that 1, running environment information of an air conditioning unit in a first target period is predicted, wherein the operating environment information at least comprises ambient temperature; 2, an initial valve openingdegree range value of an electronic expansion valve of an air conditioning unit is corrected based on the operating environment information, and a first valve opening degree range value is obtained;3, the air conditioning unit is started in the first target time period, detecting whether the operation of the air conditioning unit is abnormal or not, and the opening degree range value of a firstvalve on the basis of the operation abnormal parameters is adjusted under the condition that the operation is abnormal, and a second valve opening degree range value is obtained; and 4, the opening degree of the electronic expansion valve is adjusted in the second valve opening degree range value. According to the method, the problem that in the prior art, a single valve opening range value is setfor the electronic expansion valve during operation of the air conditioner is solved, and the problem that the electronic expansion valve is difficult to adapt to different operation environments andoperation conditions is solved.

Description

technical field [0001] The present application relates to the technical field of air-conditioning control, in particular, to an air-conditioning control method and device with the function of adjusting the opening of an electronic expansion valve. Background technique [0002] As one of the central air-conditioning systems, the multi-connected air-conditioning system has been increasingly widely used. It can be applied to projects in different regions, different climate conditions, different heights, and different building functions. [0003] At present, the throttling of multi-connected air conditioning systems is mostly realized by electronic expansion valves. Although electronic expansion valves have the advantages of precise adjustment, automatic control, and wide adjustment range, there are restrictions on the minimum opening and maximum opening of electronic expansion valves. Under the calibration operation conditions in the laboratory test, the adjustment range of the...

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Problems solved by technology

[0005] This application provides an air-conditioning control method and device with the function of adjusting the opening of the electronic expansion valve to solve the problem of setting a single valve opening range value for the electronic expansion valve in the related art when the air conditioner is running, which is difficult to adapt to different operating environments and operating conditions. the problem of the situation

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