自動控制原理虚拟实验室设计.doc

摘 要 自动控制原理是学习自动控制技术的一门重要的专业基础课程，是控制理论的基础。而实验课是自动控制原理整个教学过程中不可缺少的重要组成部分。由于时间和专业知识的限制，直接利用MATLAB语言编程进行控制系统分析是不方便的，需要在MATLAB基础上为用户开发出适用于适用的接口界面。论文介绍了在MATLAB软件环境下开发出的自动控制原理实验教学软件。它利用MATLAB语言的图形用户界面设计功能(GUI)及其提供的控制系统工具箱对自动控制系统进行稳定性分析、根轨迹分析、频域分析，并说明了本软件的特点、功能和效果。结果证明该软件系统可以取代传统模拟实验，它不仅能提高实验教学效率，改善实验效果，而且方便易行，具有推广应用价值。同时利用该软件可以系统的让学生掌握控制系统设计思想的演化过程以及自动控制学科专业知识，从而提高学生分析和解决设计问题的能力。 关键词：自动控制原理，MATLAB，虚拟实验系统，GUI(图形用户界面) Abstract Automatic Control Theory is an important professional course in learning Automatic Control. And it’s a foundation of control theory. Experiment is an indispensable part in learning Automatic Control Theory. For a beginner of Automatic Control System, it is difficult to use the MATLAB programming language to analysis the control system, due to the limited time and poor professional knowledge. So we need to develop an interface which is easy to use based on MATLAB. This paper is about developing an experimental teaching software of Automatic Control Theory in MATLAB. We make model for automatic control system and analysis the stability, root locus and frequency domain by using the interface design function and automatic control toolbox. Additionally, we provide the note about the features, functions and effects of the software. Our results demonstrate that this software can replace traditional experiment. It could not only increase the teaching efficiency and improve the experiment teach effect, but also the software is very convenient. And also this software could make the students to master the evolvement process of design method of automatic control system and professional knowledge of automatic control. Obviously, it will improve the student’s ability of analysis and solving problems. Keywords : Automatic Control Theory ,MATLAB ,Virtual Experimental System ,GUI 目 录 摘 要 I Abstract II 1 绪 论 1 2 虚拟实验系统的总体设计 2 2.1 背景知识介绍 2 2.1.1 MATLAB的优势和特点以及在控制系统中的运用 2 2.2 虚拟实验系统总体设计原理 5 2.3虚拟实验系统总体设计框图 5 3 系统的主界面设计 7 3.1主界面模块框图 7 3.2主界面