模糊自适应PID控制的仿真研究

首先介绍了PID控制系统的工作原理,因PID控制器结构简单、实现简单,控制效果良好,所以已得到广泛应用。但当控制对象变化时,控制器的参数难以自动调整。为了使控制器具有较好的自适应性,可以采用模糊控制理论的方法来实现控制器参数的自动调整。模糊PID控制系统就是模糊理论与传统的PID控制器的结合。最后以一控制对象为例,对该两种方式的控制进行了仿真和比较,并得出了相应的结论。

Study Fuzzy Self-Adapting PID Control System

The theory of Proportion Integral.Differential(PID)control system is introduced.The structure and realization of PID controllers is simple and its control effect is good,so PID controller is widely used in the industrial control process.However,it is difficult for PID controllers to automatically condition their parameters when the control object changes.In order to make PID controllers have a better self-adaptability,fuzzy control theory is applied to realize auto conditioning of controllers parameters.Fuzzy PID control system is the combination of fuzzy theory and PID controllers.In the end,a control object is given as an example using PID control method and fuzzy PID control theory to do simulation separately.