时滞多变量过程信息融合解耦控制

针对工业过程中时滞多变量线性系统各回路问存在的强耦合问题,提出一种基于信息融合估计的解耦控制方法.通过融合主通道和相应耦合通道的期望输出软约束信息和控制能量软约束信息,估计出二次性能指标下的最优自适应解耦控制律.进一步对无限预见期望输出信息进行一步预见等效处理,获得计算更简单的近似最优解耦控制律.实例仿真结果表明了该解耦控制器具有计算量小、解耦程度可调以及控制品质好等优点.

Information Fusion Decoupling Control Method for Time-delayed Multivariable Process

In allusion to the strong coupling problem of the time-delayed multivariable linear systems in the industrial processes,a novel decoupling control method based on information fusion estimation is presented in this paper.By fusing the soft constraint information of the desired output and the control energy of the main channel and the relevant coupling channels ,the optimal decoupling control rule under the quadratic performance index can be obtained.Furthermore,the approximate optimal control role with easier computation can be obtained,when the infinite preview desired output is equivalently treated as one step preview desired output.Simulation results show that the decoupling controller has advantages of small computation,adjustable decoupling ability and good control quality.