双容水箱液位控制的仿真研究李秀丽.doc

摘要 液位控制在当今的工业生产中占有重要的地位，但在液位控制过程中存在着滞后、非线性、时变的特点。针对这些特点人们总结了许多有效的控制方法，常用的就是传统的PID控制算法。也有许多有效的智能控制算法，模糊PID控制算法就是其中一种。模糊PID控制方法结合了PID控制算法和模糊控制算法。 本文主要介绍了传统PID控制和模糊PID控制在双容液位控制中的应用。利用MATLAB软件中的Simulink工具箱对控制对象进行适配性和抗干扰动态特性方面的研究。经过仿真对比结果表明：模糊PID控制算法比传统PID控制算法更好的控制效果，有较强的鲁棒性。 关键词 液位控制，PID控制，模糊PID控制，仿真，模糊控制 Abstract Level control is very important in the current industrial production, but there is a lag,nonlinear,time-varying characteristics in the process of liquid level control. According to these characteristics , people summarized many effective control methods, commonly used is the traditional PID control algorithm.There are many effective intelligent control algorithms, fuzzy PID control algorithm is one of them. Fuzzy PID control method combines PID control algorithm and fuzzy control. This paper mainly introduces the traditional PID control and fuzzy PID control in the application of double capacity level control.Using Simulink toolbox in MATLAB software to control object for fitment and anti-jamming dynamic characteristics research. The comparative simulation results show that the fuzzy PID control algorithm is better than traditional PID control algorithm of the control effect, have stronger robustness. Keywords the liquid level control, PID control, fuzzy PID control,simulation fuzzy control 目录 摘要....................................................................................................................................I Abstract..............................................................................................................................I 1　绪论.............................................................................................................................1 1.1　课题研究的目的和意义..........................................................................................1 1.2　液位系统的实验装置及其控制方法......................................................................3 1.3　本文主要