Control method for air conditioner

Abstract

The invention discloses a control method for an air conditioner. The outlet water temperature Tewo and a set target temperature Td are acquired; a difference value delta T is calculated, wherein delta T=Tewo-Td; whether delta T is within a set difference value range or not is judged; if not, whether the water temperature change rate is within a set change rate range or not is judged; if not, whether the frequency of compressor starting / shutdown is within a set starting / shutdown frequency range or not is judged; if not, the compressor additional starting / reduction shutdown interval time is determined according to delta T, the water temperature change rate and the compressor starting / shutdown frequency, after the additional starting / reduction shutdown interval time is up, one compressor in a shutdown / start state is controlled to start / stop; and the difference value delta T, the water temperature change rate and the compressor starting / shutdown frequency are comprehensively considered, starting and stopping of compressors in a unit are controlled, and therefore frequent starting, caused by too-quick feedback of the water temperature, of the compressors is avoided, the service life of the compressors is prolonged, the water temperature fluctuation is relieved, and the requirement for comfort of a user is met.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to a control method for an air conditioner unit. Background technique [0002] For the air-conditioning unit combined with multi-module units, the start and stop of the system is controlled according to the difference between the target water temperature and the actual water temperature. However, in actual use and operation, because the user's load is changeable, only starting and stopping control based on the difference between the target water temperature and the actual water temperature will cause the compressor to start and stop frequently, resulting in large fluctuations in the water temperature, which will lead to room temperature. High and low, resulting in poor user experience. SUMMARY OF THE INVENTION [0003] The invention provides a control method for an air-conditioning unit, which avoids the frequent starting and stopping of the compressor, and t...

AI Technical Summary

Problems solved by technology

However, in actual use and operation, since the load of the user is changeable, the start-stop control only based on the difference between the target water temperature and the actual water temperature will cause the compressor to start and stop frequently, resulting in large fluctuations in the water temperature, which in turn will lead to a decrease in the room temperature. High and low, resulting in poor user experience

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