Air conditioner system control method and system and air conditioner

Abstract

The invention discloses an air conditioner system control method and system and an air conditioner. The air conditioner control system comprises the steps of judging whether a first coolant coefficient ranges from a first lower limit threshold value to a first upper limit threshold value or not after a compressor operates for preset time in a heating mode; adjusting the opening degree of an electronic expansion valve of an indoor unit according to the pipe temperature of an indoor heat exchanger so as to change the circulation volume of a coolant in time if the first coolant coefficient rangesfrom the first lower limit threshold value to the first upper limit threshold value; increasing the opening degree of the electronic expansion valve of the indoor unit if the first coolant coefficient is greater than the first upper limit threshold value, and otherwise, decreasing the opening degree of the electronic expansion valve of the indoor unit. Through the air conditioner system control method, the air conditioner system can be made to have the optimal coolant circulation volume all the time, it is ensured that the air conditioner system operates in a more efficient and energy-savingmode, and use experience is improved.

Description

technical field [0001] The invention relates to the field of air-conditioning equipment, in particular to a control method and system for an air-conditioning system and an air-conditioning system. Background technique [0002] In order to make the air conditioning system develop in the direction of better energy saving and efficient operation, in related technologies, high-end air conditioners have better energy consumption and operating performance than bottom-end air conditioners. On the one hand, this is achieved through hardware upgrades, but High-end air conditioners cost more. In addition, through the control logic of the air conditioner, the air conditioner system can be more energy-saving and efficient. [0003] However, there are the following common shortcomings: the control logic of the air-conditioning system cannot keep the air-conditioning system in a state of high-efficiency operation at all times according to the operating characteristics of the unit, result...

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Problems solved by technology

[0003] However, there are the following common shortcomings: the control logic of the air-conditioning system cannot keep the air-conditioning system in a state of high-efficiency operation at all times according to the operating characteristics of the unit, resulting in the ineffective use of the heat transfer efficiency of the heat exchanger, which in turn affects the performance of the entire air-conditioning system. The actual operation effect of the unit

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