基于多变量内模控制的横向定量控制系统研究与应用

Study and Application of Cross Direction Basis Weight Control System Based on Multi-variable Internal Model Control Strategy

纸机横向定量控制系统是复杂的非方多变量系统,具有高维、强耦合和大时滞的特点,为此,通过建立该过程数学模型,以逆矩阵作为补偿矩阵结合内模控制器的设计方法,设计了相应的多变量内模控制器。仿真表明,该算法可以有效地降低系统响应的超调,缩短调节时间以及抑制噪声干扰。

The control system of cross-directional basis weight is a complicated,non-square and multi-variate system. It＇s difficult to be controlled satisfyingly owing to the property of high-dimension,strong-coupling and long-lag. The multivariable inner-model controller was designed to solve the above problem by setting the mathematical model of this process and compensating with inverse matrix. The simulation indicated that the algorithm could reduce the overshoot,settling-time of the system response and the system noise also could be restrained.