解析解耦设计在变风量空调系统中的应用  

Application of Analytical Decoupled Design for Variable-Air-Volume Air-conditioning System

作　　者：马岩[1] 左为恒[1] 李昌春[1] 

机构地区：[1]重庆大学电气工程学院,重庆400030

出　　处：《计算机仿真》2011年第9期226-229,共4页Computer Simulation

摘　　要：研究空调优化控制问题,变风量空调(VAV)具有多变量、强耦合和非线性系统。变量之间的耦合会直接影响空调系统的性能指标和稳定性。针对变风量空调系统进行建模,模型为三输入三输出的传递函数矩阵。在内模控制系统结构基础上,运用解耦控制的解析设计方法来设计解耦控制器。解耦设计方法可以达到标称系统变量间完全解耦,并且参数可以在线调整,使输出能够紧密跟随系统的动态变化。仿真结果表明,解耦控制器的设计提高了性能,应用效果较好。Variable-Air-Volume （VAV） air-conditioning system has the feature of multi-variable, intense cou- pling and nonlinear. The coupling may directly affect the performance and the stability of VAV system. In this paper, a theoretical model of VAV air-conditioning system is established, which is the three input-output transfer function matrix. Based on the internal model, the analytical design of decoupling control method is used to design the decou- piing controller. Its advantage is that absolute decoupling can be implemented, and moreover, the controller parame- ters can be tuned on-line in a monotonous manner to cope with the plant unmodeUed dynamics. The simulation curves of the decoupling control system show the availability of the method.

关 键 词：变风量空调系统 解耦控制 内模控制 恒温恒湿 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]