一阶线性时滞系统的内模控制设计

摘要

内模控制是近年来发展起来的一种新型控制方法，分析它的原理对于工程应用和理论研究具有重要的意义。从IMC结构分析入手揭示了内模控制的本质，证明了该系统可实现对阶跃信号的无差跟踪及在阶跃信号扰动下可实现无差控制；介绍了时滞线性系统内模控制器和内模滤波器的设计方法。并基于MATLAB仿真研究表明，线性时滞过程的内模控制具有较好的鲁棒性，有一定的应用价值。%Internal model control is a new developing control method in recent years, its principle analysis is very important in engineering application and theoretical research. From the structure of IMC, the article reveals the essence of internal model control, and then it proves that the system can not only achieve the no difference tracking for the step signal, also realizes the no difference control with the disturbance of step signal. This article introduces the internal model controller for the linear time-delay system and the method of IMC filter designing. Based on the simulation with Matlab, it shows the great robustness for the internal model control in the linear time-delay process, and has great value on application.