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基于MATLAB的自动控制系统时域频域分析与仿真

摘 要

自动控制系统就是在无人直接操作或干预的条件下，通过控制装置使控制对象自动的按照给定的规律运行，使被控量按照给定的规律去变化的系统。在现代工业生产中，自动控制系统已经遍布每一个角落，对于线性时不变控制系统，可以通过时域、频域分析法来分析系统的性能，但是对于多输入多输出的控制系统，时域、频域分析已经无能为力，鉴于这样的控制系统，可以通过线性系统的状态空间分析法来分析。本文针对自动控制系统的设计很大程度上还依赖于实际系统的反复实验，结合具体的实例,介绍了利用先进的MATLAB软件对自动控制系统进行时域、频域分析与仿真和线性系统状态空间分析的方法，通过快速直观的仿真和分析达到自动控制系统的优化。

关键词:MATLAB 自动控制系统 时域 频域 状态空间

ABSTRACT

Automatic control system makes object operate according to a certain law automatically to let the controlled quantity change by given law on the condition that nobody operate and control directly. Automatic control system exists every corner of the world in the modern industrialized production, which can analyze the performance of the system by time domain and frequency domain for the linear time-invariant control systems. However, to the system with multiple inputs and multiple outputs, the way to analyze through time domain and frequency domain can not do anything . Due to the control system, it can analyze through linear system state space. Due to this point that the design of automatic control system largely depends on repeated practice and modification, combined with the concrete example,this paper introduces the ways to analyze and simulate the time domain and frequency domain and linear system state space of automatic control system by advanced MATLAB,it can reach the optimal of automatic control system by direct and fast.

Key words: MATLAB Automatic control system Time domain Frequency

目 录

TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc325751235" 一 绪论 PAGEREF _Toc325751235 \h 1

HYPERLINK \l "_Toc325751236" 1.1 题目背景、研究意义 PAGEREF _Toc325751236 \h 1

HYPERLINK \l "_Toc325751237" 1.2 国内外研究现状 PAGEREF _Toc325751237 \h 1

HYPERLINK \l "_Toc325751238" 1.3 研究内容 PAGEREF _Toc325751238 \h 1

HYPERLINK \l "_Toc325751239" 二 自动控制系统基础 PAGEREF _Toc325751239 \h 2

HYPERLINK \l "_Toc325751240" 2.1 自动控制系统的概述 PAGEREF _Toc325751240 \h 2

HYPERLINK \l "_Toc325751241" 2.2 开环、闭环控制系统 PAGE