液位系统 PID 控制及仿真摘要三容水箱是使用较为广泛的、具有很大代表性的工业数学模型之一，具有很重要的研究意义。液位控制是工业控制中最常用的方法之一，由于液体本身的摩擦等因素的影响，使得控制对象具有一定的滞后性，具有非线性的特点。PID 控制是最常用的控制算法之一，由于其工况范围广而且其功能简单。考虑到三荣水箱的代表意义，这里选择将其作为研究对象，使用 MATLAB 作为研究工具对其进行 PID 和模糊 PID 控制的建模以及仿真，并且将两者的仿真结果进行对比分析。关键词：传统 PID；模糊 PID；三容水箱；MATLAB 仿真；PID Control and Simulation of Liquid Level System ABSTRACT Three-tank water tank is one of the most extensive used and representative industrial mathematical models, which has very important research significance. Liquid level control is one out of a multitude useful used means in industrial check on. Due to the influence of factors such as the friction of the liquid itself, the control object has certain hysteresis and nonlinear characteristics. PID control is one of the most wide-ranging applied control algorithms and its wide operating range and simple function. In this paper, the modeling and simulation of representative three-tank PID and fuzzy PID control are deeply studied and discussed by using MATLAB simulation software, and the traditional PID control and fuzzy PID control are compared and summarized.Key words：Traditional PID; Fuzzy PID; Three-capacity water tank；Matlab simulation;目录一、论述............................................................................................................61.1 研究背景与意义..........................................................................................61.2 文献综述...................................................................................................61.3 研究现状................................................................................................
