前馈补偿法在空调系统控制中的应用

采用机理分析和实验数据分析相结合的方法，建立了变风量空调的数学模型，并依据此模型建立了四输入、四输出的变风量空调系统的传递函数矩阵．针对该系统采用前馈补偿法设计了变风量空调系统的解耦补偿器，该解耦补偿器可以使所研究的变风量空调控制系统的开环和闭环传递函数矩阵都变换为对角矩阵，从而解除各个控制回路之间的耦合，使变风量空调系统实现解耦．实验结果表明，该解耦控制方法在变风量空调中的应用效果较好，提高了系统的控制品质和性能。

Application of Feedforward Compensation in Air Conditioning Control System

A theoretical model of variable air volume (VAV) system was set up by combining the theoretical analysis with the data analysis of experiment. The transfer function matrix of the four inputs and four outputs was established. The decoupling unit of VAV system was designed in the way of feedforward compensation. The decoupling compensation unit can change the transfer function matrix of the open loop and closed loop control system into diagonal matrix, so that the coupling among the four control loops is eliminated, and VAV system is decoupled. The experimental results of the decoupling control system show the availability of this method.