Control method and system of air conditioner system and air conditioner

Abstract

The invention discloses a control method and system of an air conditioner system and an air conditioner. The control method of the air conditioner system comprises the steps that under the refrigeration mode, after a compressor runs for the preset time, whether the unit output rate of the air conditioner system is larger than the first threshold value or not is judged, if yes, whether the air sidecoefficient is between the lower limit threshold value and the upper limit threshold value or not is judged, the air side coefficient is determined according to the air outlet temperature and the outdoor environment temperature of an outdoor heat exchanger, and the saturated temperature corresponding to the outlet pressure of the outdoor heat exchanger, and if the air side coefficient is betweenthe lower limit threshold value and the upper limit threshold value, according to the exhaust temperature of the compressor, the opening degree of an electronic expansion valve is adjusted; if the airside coefficient is larger than the upper limit threshold value, the opening degree of the electronic expansion valve is increased, and if not, the opening degree of the electronic expansion valve isreduced. Through the control method of the air conditioner system, the air conditioner system is in the optimal refrigerant circulation amount all the time, it is ensured that the air conditioner system moves in a more efficient energy-saving manner, and the 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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