【摘要】 针对时滞多变量耦合系统,研究了带有多时滞的多变量稳定过程的解耦内模控制,根据开环系统的时滞给出了一种时滞系统多变量解耦方法,由于理想的多变量时滞系统内模控制器设计复杂,且根据内模控制理论设计的控制器一般是高阶的,因此采用模糊控制方法设计模糊内模控制器。其宗旨是首先根据过程对象的模型,设计多变量时滞解耦的预补偿器,对其进行对角优势化,利用补偿后的主对角元素作为内模控制的预估模型,设计了多通道模糊内模控制器。仿真结果表明,该方法具有很好的解耦能力,鲁棒性强;方法简单,易于实现,具有工程应用价值。更多还原

【Abstract】 In view of strong multivariable coupling system with multiple times,the decoupling internal model control(IMC) with stability is investigated for multivariable stable processes with multiple time delays.A kind of decoupling way is characterized in terms of the open-loop system’s time delays.Owing to the high complexity of the theoretical controller,the controller with IMC design is often high-order.A practical fuzzy internal controller is presented.It is based on the model of the plant to design decoupling compensating matrix to obtain a diagonal dominant system.The compensated diagonal elements are used as internal model.The fuzzy controller is designed.The simulation result shows the decoupling capability and robustness.It is suitable for engineering application.更多还原