Air conditioning system and its control method, device and equipment

Abstract

The invention relates to an air conditioning system and a control method, device and equipment thereof. The method comprises the steps: obtaining outdoor environment temperature of each outdoor unit in the air conditioning system and exhaust pressure of a unit exhaust port in the air conditioning system; comparing the outdoor environment temperature with a preset protection temperature to obtain afirst comparison result; comparing the exhaust pressure with a preset protection pressure to obtain a second comparison result; determining the number of required units in each unit subsystem of theair conditioning system according to the first comparison result and the second comparison result; and disabling a first number of operated units or enabling a second number of non-operated units to make the number of the units in the operating state in each unit subsystem consistent with the number of the required units. The starting number of the units in each unit subsystem is dynamically adjusted, high-pressure protection and exhaust temperature protection and the like of the units are prevented, normal operation of the units is guaranteed, the units are prevented from being damaged, and the reliability of the air conditioning system in the operation process is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning system and its control method, device and equipment. Background technique [0002] Conventional large-scale air-conditioning systems are composed of indoor units, multiple outdoor units, and multiple unit subsystems corresponding to each outdoor unit. The biggest advantage of being divided into multiple systems under the premise of meeting the required cooling capacity requirements is that each unit can be controlled separately. subsystem. [0003] However, in the air-conditioning system in the harsh climate environment, when the ambient temperature is too high, the unit will have high-voltage protection and exhaust temperature protection, which will make the unit unable to operate normally, or even damage the unit, resulting in low reliability of the air-conditioning system during operation. Contents of the invention [0004] In view of this, the ...

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide an air-conditioning system and its control method, device and equipment to solve the problem of low reliability of the air-conditioning system in the prior art during operation

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