Control method of air conditioning system and air conditioning system

Abstract

The invention provides a control method of an air conditioning system and the air conditioning system. The control method of the air conditioning system includes the following steps that S10, a unit of the air conditioning system is switched into a compressor double-cylinder operating state; S20, the operating frequency of a compressor is controlled to be F; S30, circulation is conducted according to a preset time period, and an indoor environment temperature Tring and a temperature target Tset set by a user are circularly measured; S41, if the difference between the Tring and the Tset is larger than a preset value T, the operating frequency F of the compressor confirms to the formula: A(Tring-Tset)+B+E; S42, if the difference between the Tring and the Tset is smaller than or equal to the preset value T, the operating frequency Fn of the compressor conforms to the formula: Fn-1[D+C(Tn-Tn-1)] / D. The adjusting range of the system refrigerating / heating amount is widened, and energy efficiency and comfort are improved.

Description

technical field [0001] The present invention relates to the field of air conditioning, in particular to a method for controlling an air conditioning system and the air conditioning system. Background technique [0002] Existing air conditioners generally have the following situation: due to differences in indoor and outdoor temperatures or the number of multi-connected indoor units running, the same air conditioning system may be in different operating load conditions under different circumstances. Only when the cooling / heating output of the air conditioner reaches a balance with the heat load of the indoor environment can the indoor temperature be stabilized at the target temperature set by the user. Therefore, adjusting the cooling / heating capacity of the air conditioning system according to the ambient heat load is a necessary condition for stabilizing the indoor temperature. [0003] For the above situation, the general practice of existing air conditioners is: [0004...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a control method and an air conditioning system for an air conditioning system to solve the problem that the air conditioning system in the prior art starts and stops the compressor to increase energy consumption and decrease the overall energy efficiency. When the frequency of the compressor may be much lower than its optimal operating range, the efficiency of the motor will be reduced, resulting in a technical problem of energy efficiency reduction

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