Intelligent decoupling and coordinating control in Variable-Air-Volume air conditioning system

This paper mainly studies the stability of Variable-Air-Volume (VAV) air conditioning system, which is necessary for VAV system's operation. Firstly, the paper analyses the model of VAV system, and divides it into two parts ---- air handling units (AHU) and terminal units reasonably basing on dividing and coordinating strategies. Secondly, the paper proposes neural network intelligent decoupling method based open loop for AHU unit, which has coupling variables, and gives the algorithm. Thirdly, the paper utilizing the distributing characteristic of BAS in IB, coordinately control the whole VAV system basing on total air volume balance, and has AHU and terminal units integrate as a whole part. Finally, the paper founds simulating models for VAV system using MATLAB software; simulation results reveal that the coordination control and decoupling control strategies of VAV system are practical; the strategies of this paper proposing are feasible and possess the engineering practical value.