Dynamic deviation control method of water multi-connected system and water multi-connected system

Abstract

The invention discloses a dynamic deviation control method of a multi-water system and a multi-water system. The dynamic deviation control method includes the following steps: detecting the actual water outlet temperature To of an external machine in real time, and calculating the difference between the target water outlet temperature Tt and the actual water outlet temperature To. Actual deviation; judge whether the standby condition or start condition is met according to the actual deviation and the set start-stop deviation; if the start condition is met, the outdoor unit enters the start state; Calculate the deviation adjustment amount of the operating parameters of the external machine in the last startup state, correct and update the start-stop deviation amount. According to the target outlet water temperature of the outdoor unit and the operating conditions of the outdoor unit, the present invention corrects and updates the start-stop deviation, realizes the dynamic adjustment of the deviation, greatly reduces the number of start-up and stop of the compressor, and improves the service life and user comfort .

Description

technical field [0001] The invention relates to the technical field of water multi-connected systems, in particular to a dynamic deviation control method of the water multi-connected system and the water multi-connected system. Background technique [0002] Complying with the market demand, the water multi-units and household water machines have a large market, and are favored by consumers for their excellent comfort and efficient energy utilization. The main models are small cooling capacity of 8~16KW Split chamber water multi-system and 20~35KW large cooling capacity integral water multi-system. [0003] The control method of the existing greywater multi-connected system is generally to set a constant deviation value to control the start and stop of the unit, that is, the closed-loop fixed value adjustment is the main method, and the dynamic environment faced by the unit during operation cannot be adjusted. Timely and reasonable adjustments will cause frequent start and s...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defect that the unit in the prior art is prone to frequent start and stop, the present invention proposes a dynamic deviation control method of the multi-water system and the multi-water system using this control method, according to the target outlet water temperature of the external machine and the operation of the external machine Working conditions, correct and update the start-stop deviation, realize the dynamic adjustment of the deviation, greatly reduce the number of start-stop compressors, improve service life and user comfort

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