基于常规算法的PID控制及其Matlab仿真.doc

PAGE 1 PAGE I 基于常规算法的PID控制及其 Matlab仿真 摘 要 常规PID控制具有原理简单，使用方便，鲁棒性好等优点，所以到今天为止，全世界控制领域中84%仍是应用PID控制。但是其参数整定方法繁杂。利用Matlab可以方便地仿真,实现PID参数整定。 本课题的主要研究内容是基于常规算法的PID控制理论及其对该算法进行MATLAB仿真实现。在讨论了常规数字PID控制算法的基础上，进一步论述了串级PID控制、纯滞后系统的大林控制算法和纯滞后系统的Smith控制算法,并对上述算法进行了仿真实现。 将上述讨论的结果应用到锅炉汽包水位控制系统中。汽包水位控制有单冲量、双冲量、三冲量三种控制系统。本文主要对三冲量控制系统进行了Simulink仿真，讨论了在相关干扰下的水位控制。 关键词：常规PID MATLAB 锅炉汽包水位 仿真 PAGE IV PAGE III PID Control Basics on the General Algorithm and the MATLAB Simulink ABSTRACT The control algorithm of PID is easy and widely applicable , Therefore ,so far up to 84% of control algorithm in the Control engineering take PID as their first choice, but its setting methods of parameter are multifarious ,while MATLAB is easy to emulate the setting of PID parameter. The paper is PID control basics on the general algorithm and the MATLAB simulink. On the basic of discussing the discrete PID control,the paper discusses the Cascade PID Control, Danlin arithmetic of the lagging system and Smith arithmetic of the lagging system, then study the simulink. Apply the result of the upwards to the water level of boiler drum, it has three kinds control systems including single-element control plan ,dual-element control plan and three-element control plan .Here we carried on the Simulink model to threeimpulses control system.Discuss the water level of boiler drum on the disturbance correlated. Key Words：general PID ; MATLAB; the water level of boiler drum;simulink 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc169676808 摘 要 PAGEREF _Toc169676808 \h I HYPERLINK \l _Toc169676809 ABSTRACT PAGEREF _Toc169676809 \h II HYPERLINK \l _Toc169676810 第一章 绪论 PAGEREF _Toc169676810 \h 1 HYPERLINK \l _Toc169676811 1.1 工业生产过程控制 PAGEREF _Toc169676811 \h 1 HYPERLINK \l _Toc169676812 1.2 MATLAB仿真 PAGEREF _Toc169676812 \h 3 HYPERLINK \l _Toc169676813 1.3 本课题设计的主要内容 PAGEREF _Toc169676813 \h 4 HYPERLINK \l _Toc169676814 第二章 常规数字PID控制算法 PAGEREF _Toc169676814 \h 6 HYPERLINK \l _Toc169676815 2.1