External unit balanced operation control method for multi-connected air conditioner unit and multi-connected air conditioner unit

Abstract

The invention relates to the field of air conditioner control, in particular to an external unit balanced operation control method for a multi-connected air conditioner unit and the multi-connected air conditioner unit. According to the external unit balanced operation control method for the multi-connected air conditioner unit, different weighting systems are defined according to different working conditions of all external units; then weighted accumulative working hours of each external unit are calculated by the systems according to the working condition of each external unit and the working time under the corresponding working condition; and the external units which need to be switched are determined according to the accumulative working hours and a preset time threshold value Ty for alternating operation, and therefore the aim of sequentially using the external units with the fewest working hours is achieved. The accumulative working hours of each external unit are enabled to be the same as far as possible. According to the method disclosed by the application, the external units operate in a balanced manner; the quality of each external unit is controlled to be balanced; and the service life of each external unit is consistent.

Description

technical field [0001] The invention relates to the field of air-conditioning control, in particular to a method for controlling the balanced operation of external units of a multi-connected air-conditioning unit and the multi-connected air-conditioning unit. Background technique [0002] In the prior art, multi-connected air-conditioning units have been more and more widely used. In a multi-connected air-conditioning unit, the external unit system is connected to the internal unit system, and the external unit system can be composed of multiple external units connected in parallel. The internal machine system is also composed of multiple internal machines connected in parallel. Multiple external units of the multi-connected air-conditioning unit can be combined freely, which has the advantages of convenient installation, energy saving and consumption reduction, and the multi-connected air-conditioning unit can also meet people's demand for air-conditioning. [0003] In the...

AI Technical Summary

Problems solved by technology

Although this method can realize the alternate operation of the outdoor machines, due to the different components and parameters of each outdoor machine, it cannot truly realize the balanced operation of each outdoor machine, the quality of use of each outdoor machine cannot be kept consistent, and the service life is different

The service life of the components of the external unit with long running time will be shortened, resulting in lower quality of the entire multi-connected air conditioner unit and prone to failure

[0004] Based on the above description, there is an urgent need for a multi-connected air-conditioning unit with a consistent external unit operation control method and a multi-connected air-conditioning unit to solve the problem that the quality of use of each external unit in the prior art cannot be kept consistent. , the length of service life is different, which leads to the reduction of the quality of the whole multi-connected air conditioning unit and the problem of prone to failure

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