一类时滞系统的Fuzzy-PI-Smith控制方法

Study on Fuzzy-PI-Smith Controller for a Class of System with Time-delay

为了解决Smith预估器当系统参数发生变化时鲁棒性差的缺点,将Fuzzy控制器和Smith预估器二者结合起来,并在模糊控制器中加入PI控制器来消除系统的稳态误差,从而给出了一类时滞系统的Fuzzy-PI-Smith控制方法。通过仿真研究可以看出,设计的控制器具有较好的稳态和动态性能。

In order to improve the weak robustness of the Smith predictor, a fuzzy controller was integrated with Smith predicator, and a PI controller was introduced to avoid the steady - state error, thus a Fuzzy - PI - Smith controller for a class of system with time - delay was proposed. Through the simulation experiments, we found that the better steady and dynamic performance could be obtained by the proposed controller.