Controlling Method And Optimization Analytics Of Variable Flow Air Conditioning System

With the energy-saving heating up, how a more rational use of energy HVAC has been put on the agenda. Due to the air conditioning load demand is the dynamic change, in order to avoid the "big flow, small load", variable flow applied widely. In this paper, air-conditioning system part-load operation are variable air volume and variable water regulation and control a variety of categories, comparing the advantages and disadvantages of various methods to analyze air-conditioning system with variable flow control strategy for regulating the development process and development.This study based on the principle of Variable Water Volume in central air conditioning system. According to the principle of thermal condition of air conditioning system, the more complex the interference, objects and uncertain parameters to change the characteristics, this paper builds a reasonable model. The study Based on Simulink as the platform. The model of variable flow of air conditioning system is emulated. Starting from the simulation research, the article established model establishment, air conditioning room, air-conditioner, air units, fan, the mathematical model of the pump etc, by using Simulink.In order to make the air conditioning system, quick response to control the dynamic feed-forward, will be introduced to control differential feed-forward, analyzes its rationality in mediation and superiority. Based on the simulation platform, to control and feed-forward control variable flow to the system control effect were analyzed. For the study, the choice of applicability feed-forward control of different load simulation signal and contrast of different forms of feed-forward control regulation of interference. Get used to change the flow of load variation trend and predict future ahead of feed-forward control scheme role.