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摘要： 分析了人工冷源中的多变量控制过程，从机理和实验建模出发，利用易于实现的前馈解耦控制策略对变容量多变量人工冷源系统进行控制。Simulink仿真表明该策略切实可行。同时，从实验的角度进一步证明了该策略的可靠性和合理性。 关键词： 人工冷源 变容量　多变量 解耦 前馈 Multivariable decoupling control system of artificial cold source with variable volume in buildings By Xu Xiaoli★ and Yang Zhao Abstract Starting from mechanism research and experiment modelling, analyses the multivariable control system, in which the feedforward decoupling control strategy is used for it for easier realization. The simulation results by Simulink show that the strategy is practicable. Also validates the strategys reliability and rationality with experiment results. Keywords artificial cold source, variable volume, multivariable, decoupling, feedforward ★ Tianjin University, Tianjin, China